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/loop-acceleration/array_true-unreach-call3_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 10:49:09,398 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 10:49:09,400 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 10:49:09,414 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 10:49:09,414 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 10:49:09,415 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 10:49:09,416 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 10:49:09,418 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 10:49:09,420 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 10:49:09,421 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 10:49:09,422 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 10:49:09,422 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 10:49:09,423 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 10:49:09,424 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 10:49:09,425 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 10:49:09,426 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 10:49:09,426 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 10:49:09,428 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 10:49:09,430 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 10:49:09,432 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 10:49:09,433 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 10:49:09,434 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 10:49:09,437 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 10:49:09,437 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 10:49:09,437 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 10:49:09,438 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 10:49:09,439 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 10:49:09,440 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 10:49:09,441 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 10:49:09,442 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 10:49:09,442 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 10:49:09,443 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 10:49:09,444 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 10:49:09,444 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 10:49:09,445 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 10:49:09,446 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 10:49:09,446 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 10:49:09,470 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 10:49:09,470 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 10:49:09,471 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 10:49:09,471 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 10:49:09,471 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 10:49:09,472 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 10:49:09,472 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 10:49:09,472 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 10:49:09,472 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 10:49:09,472 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 10:49:09,473 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 10:49:09,473 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 10:49:09,474 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 10:49:09,474 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 10:49:09,474 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 10:49:09,474 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 10:49:09,474 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 10:49:09,475 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 10:49:09,475 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 10:49:09,475 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 10:49:09,475 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 10:49:09,475 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 10:49:09,476 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 10:49:09,476 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 10:49:09,476 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 10:49:09,476 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 10:49:09,476 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 10:49:09,477 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 10:49:09,477 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 10:49:09,477 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 10:49:09,477 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 10:49:09,477 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 10:49:09,478 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 10:49:09,538 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 10:49:09,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 10:49:09,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 10:49:09,564 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 10:49:09,565 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 10:49:09,565 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i [2018-07-24 10:49:09,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25cb94323/e026427f2d1e47adb7f30eb1440e5917/FLAG870a5f0db [2018-07-24 10:49:10,044 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 10:49:10,045 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i [2018-07-24 10:49:10,051 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25cb94323/e026427f2d1e47adb7f30eb1440e5917/FLAG870a5f0db [2018-07-24 10:49:10,065 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25cb94323/e026427f2d1e47adb7f30eb1440e5917 [2018-07-24 10:49:10,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 10:49:10,077 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 10:49:10,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 10:49:10,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 10:49:10,085 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 10:49:10,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:49:10" (1/1) ... [2018-07-24 10:49:10,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de51368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:49:10, skipping insertion in model container [2018-07-24 10:49:10,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:49:10" (1/1) ... [2018-07-24 10:49:10,296 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 10:49:10,336 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:49:10,352 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 10:49:10,359 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:49:10,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:49:10 WrapperNode [2018-07-24 10:49:10,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 10:49:10,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 10:49:10,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 10:49:10,381 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 10:49:10,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:49:10" (1/1) ... [2018-07-24 10:49:10,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:49:10" (1/1) ... [2018-07-24 10:49:10,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 10:49:10,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 10:49:10,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 10:49:10,406 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 10:49:10,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:49:10" (1/1) ... [2018-07-24 10:49:10,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:49:10" (1/1) ... [2018-07-24 10:49:10,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:49:10" (1/1) ... [2018-07-24 10:49:10,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:49:10" (1/1) ... [2018-07-24 10:49:10,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:49:10" (1/1) ... [2018-07-24 10:49:10,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:49:10" (1/1) ... [2018-07-24 10:49:10,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:49:10" (1/1) ... [2018-07-24 10:49:10,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 10:49:10,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 10:49:10,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 10:49:10,433 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 10:49:10,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:49:10" (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 10:49:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_array_true_unreach_call__true_termination_i____VERIFIER_assert [2018-07-24 10:49:10,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_array_true_unreach_call__true_termination_i____VERIFIER_assert [2018-07-24 10:49:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 10:49:10,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 10:49:10,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 10:49:10,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 10:49:10,497 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 10:49:10,497 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 10:49:10,817 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 10:49:10,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:49:10 BoogieIcfgContainer [2018-07-24 10:49:10,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 10:49:10,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 10:49:10,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 10:49:10,822 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 10:49:10,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 10:49:10" (1/3) ... [2018-07-24 10:49:10,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349bc963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:49:10, skipping insertion in model container [2018-07-24 10:49:10,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:49:10" (2/3) ... [2018-07-24 10:49:10,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349bc963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:49:10, skipping insertion in model container [2018-07-24 10:49:10,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:49:10" (3/3) ... [2018-07-24 10:49:10,826 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call3_true-termination.i [2018-07-24 10:49:10,836 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 10:49:10,844 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 10:49:10,919 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 10:49:10,922 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 10:49:10,922 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 10:49:10,922 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 10:49:10,922 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 10:49:10,923 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 10:49:10,923 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 10:49:10,923 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 10:49:10,923 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 10:49:10,939 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-07-24 10:49:10,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-07-24 10:49:10,945 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:49:10,947 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:49:10,947 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_array_true_unreach_call__true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:49:10,953 INFO L82 PathProgramCache]: Analyzing trace with hash -748716574, now seen corresponding path program 1 times [2018-07-24 10:49:10,956 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:49:11,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:49:11,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:49:11,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:49:11,010 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:49:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:49:11,068 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 10:49:11,069 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:49:11,070 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 10:49:11,070 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:49:11,073 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-24 10:49:11,085 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-24 10:49:11,085 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-24 10:49:11,088 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2018-07-24 10:49:11,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:49:11,108 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2018-07-24 10:49:11,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-24 10:49:11,110 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-07-24 10:49:11,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:49:11,120 INFO L225 Difference]: With dead ends: 40 [2018-07-24 10:49:11,120 INFO L226 Difference]: Without dead ends: 18 [2018-07-24 10:49:11,125 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 10:49:11,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-07-24 10:49:11,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-07-24 10:49:11,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-07-24 10:49:11,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-07-24 10:49:11,169 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2018-07-24 10:49:11,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:49:11,170 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-07-24 10:49:11,170 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-24 10:49:11,170 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-07-24 10:49:11,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-24 10:49:11,172 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:49:11,172 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:49:11,172 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_array_true_unreach_call__true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:49:11,173 INFO L82 PathProgramCache]: Analyzing trace with hash 678224402, now seen corresponding path program 1 times [2018-07-24 10:49:11,173 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:49:11,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:49:11,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:49:11,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:49:11,176 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:49:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:49:11,226 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 10:49:11,227 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:49:11,227 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 10:49:11,227 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:49:11,229 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 10:49:11,230 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 10:49:11,231 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 10:49:11,231 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2018-07-24 10:49:11,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:49:11,478 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2018-07-24 10:49:11,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 10:49:11,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-07-24 10:49:11,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:49:11,481 INFO L225 Difference]: With dead ends: 36 [2018-07-24 10:49:11,482 INFO L226 Difference]: Without dead ends: 26 [2018-07-24 10:49:11,483 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 10:49:11,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-07-24 10:49:11,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2018-07-24 10:49:11,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-07-24 10:49:11,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2018-07-24 10:49:11,490 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 14 [2018-07-24 10:49:11,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:49:11,490 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2018-07-24 10:49:11,490 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 10:49:11,490 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2018-07-24 10:49:11,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-24 10:49:11,493 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:49:11,493 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:49:11,493 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_array_true_unreach_call__true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:49:11,494 INFO L82 PathProgramCache]: Analyzing trace with hash -975136119, now seen corresponding path program 1 times [2018-07-24 10:49:11,494 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:49:11,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:49:11,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:49:11,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:49:11,498 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:49:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:49:11,630 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 10:49:11,631 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:49:11,631 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 10:49:11,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:49:11,648 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:49:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:49:11,679 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:49:11,697 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 10:49:11,698 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:49:11,810 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 10:49:11,832 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:49:11,832 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 10:49:11,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:49:11,848 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:49:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:49:11,868 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:49:11,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:49:11,945 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:49:12,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:49:12,257 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 3 imperfect interpolant sequences. [2018-07-24 10:49:12,257 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [4, 4, 4] total 11 [2018-07-24 10:49:12,258 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:49:12,258 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 10:49:12,259 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 10:49:12,261 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-07-24 10:49:12,261 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 5 states. [2018-07-24 10:49:12,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:49:12,426 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2018-07-24 10:49:12,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 10:49:12,426 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-07-24 10:49:12,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:49:12,427 INFO L225 Difference]: With dead ends: 30 [2018-07-24 10:49:12,428 INFO L226 Difference]: Without dead ends: 25 [2018-07-24 10:49:12,429 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-07-24 10:49:12,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-07-24 10:49:12,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2018-07-24 10:49:12,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-07-24 10:49:12,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-07-24 10:49:12,437 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 17 [2018-07-24 10:49:12,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:49:12,437 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-07-24 10:49:12,437 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 10:49:12,437 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-07-24 10:49:12,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-24 10:49:12,439 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:49:12,439 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:49:12,439 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_array_true_unreach_call__true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:49:12,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1504327632, now seen corresponding path program 1 times [2018-07-24 10:49:12,440 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:49:12,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:49:12,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:49:12,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:49:12,441 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:49:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:49:12,496 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:49:12,497 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:49:12,497 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 10:49:12,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:49:12,508 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:49:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:49:12,524 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:49:12,530 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:49:12,530 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:49:12,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:49:12,597 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:49:12,597 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 10:49:12,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:49:12,613 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:49:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:49:12,631 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:49:12,636 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:49:12,636 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:49:12,650 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:49:12,652 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:49:12,652 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4] total 6 [2018-07-24 10:49:12,652 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:49:12,653 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 10:49:12,653 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 10:49:12,653 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-24 10:49:12,654 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 4 states. [2018-07-24 10:49:12,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:49:12,819 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2018-07-24 10:49:12,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 10:49:12,820 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-07-24 10:49:12,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:49:12,821 INFO L225 Difference]: With dead ends: 46 [2018-07-24 10:49:12,821 INFO L226 Difference]: Without dead ends: 33 [2018-07-24 10:49:12,821 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-24 10:49:12,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-07-24 10:49:12,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2018-07-24 10:49:12,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-07-24 10:49:12,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2018-07-24 10:49:12,827 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 21 [2018-07-24 10:49:12,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:49:12,828 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2018-07-24 10:49:12,828 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 10:49:12,828 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2018-07-24 10:49:12,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-07-24 10:49:12,829 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:49:12,829 INFO L353 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:49:12,829 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_array_true_unreach_call__true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:49:12,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1724078969, now seen corresponding path program 2 times [2018-07-24 10:49:12,830 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:49:12,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:49:12,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:49:12,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:49:12,831 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:49:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:49:12,899 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:49:12,899 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:49:12,899 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 10:49:12,916 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-24 10:49:12,916 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:49:12,932 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-24 10:49:12,932 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:49:12,935 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:49:12,941 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:49:12,941 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:49:13,043 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:49:13,064 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:49:13,064 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 10:49:13,080 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-24 10:49:13,080 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:49:13,099 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-24 10:49:13,099 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:49:13,102 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:49:13,107 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:49:13,107 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:49:13,139 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:49:13,141 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:49:13,141 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5] total 8 [2018-07-24 10:49:13,141 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:49:13,142 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 10:49:13,142 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 10:49:13,142 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-07-24 10:49:13,143 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 5 states. [2018-07-24 10:49:13,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:49:13,371 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2018-07-24 10:49:13,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 10:49:13,372 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-07-24 10:49:13,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:49:13,373 INFO L225 Difference]: With dead ends: 58 [2018-07-24 10:49:13,373 INFO L226 Difference]: Without dead ends: 41 [2018-07-24 10:49:13,374 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-07-24 10:49:13,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-07-24 10:49:13,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2018-07-24 10:49:13,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-07-24 10:49:13,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2018-07-24 10:49:13,381 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 24 [2018-07-24 10:49:13,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:49:13,381 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2018-07-24 10:49:13,381 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 10:49:13,382 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-07-24 10:49:13,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-07-24 10:49:13,383 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:49:13,383 INFO L353 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:49:13,383 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_array_true_unreach_call__true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:49:13,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1488966864, now seen corresponding path program 3 times [2018-07-24 10:49:13,383 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:49:13,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:49:13,385 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-24 10:49:13,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:49:13,385 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:49:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:49:13,641 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:49:13,641 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:49:13,641 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:49:13,649 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-07-24 10:49:13,649 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-07-24 10:49:13,665 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-07-24 10:49:13,665 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:49:13,667 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:49:13,743 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-07-24 10:49:13,743 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:49:13,794 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-07-24 10:49:13,815 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 10:49:13,815 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [6] total 13 [2018-07-24 10:49:13,815 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:49:13,816 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 10:49:13,816 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 10:49:13,816 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-07-24 10:49:13,817 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 6 states. [2018-07-24 10:49:13,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:49:13,906 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2018-07-24 10:49:13,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 10:49:13,907 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2018-07-24 10:49:13,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:49:13,908 INFO L225 Difference]: With dead ends: 37 [2018-07-24 10:49:13,908 INFO L226 Difference]: Without dead ends: 0 [2018-07-24 10:49:13,909 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2018-07-24 10:49:13,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-24 10:49:13,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-24 10:49:13,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-24 10:49:13,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-24 10:49:13,911 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-07-24 10:49:13,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:49:13,911 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-24 10:49:13,911 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 10:49:13,912 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-24 10:49:13,912 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-24 10:49:13,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-24 10:49:13,980 INFO L421 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_array_true_unreach_call__true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-07-24 10:49:13,981 INFO L421 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-07-24 10:49:13,981 INFO L424 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_array_true_unreach_call__true_termination_i____VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-07-24 10:49:13,981 INFO L421 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-07-24 10:49:13,981 INFO L421 ceAbstractionStarter]: For program point L4''(lines 3 8) no Hoare annotation was computed. [2018-07-24 10:49:13,981 INFO L421 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_array_true_unreach_call__true_termination_i____VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-07-24 10:49:13,981 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-07-24 10:49:13,982 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-07-24 10:49:13,982 INFO L424 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-07-24 10:49:13,982 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-07-24 10:49:13,982 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-07-24 10:49:13,982 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-07-24 10:49:13,982 INFO L421 ceAbstractionStarter]: For program point L13''(lines 13 15) no Hoare annotation was computed. [2018-07-24 10:49:13,982 INFO L421 ceAbstractionStarter]: For program point L17''(lines 17 21) no Hoare annotation was computed. [2018-07-24 10:49:13,983 INFO L417 ceAbstractionStarter]: At program point L17''''(lines 17 21) the Hoare annotation is: (<= main_~i~0 1023) [2018-07-24 10:49:13,983 INFO L424 ceAbstractionStarter]: At program point L13'''(lines 13 15) the Hoare annotation is: true [2018-07-24 10:49:13,983 INFO L421 ceAbstractionStarter]: For program point mainFINAL(lines 9 23) no Hoare annotation was computed. [2018-07-24 10:49:13,983 INFO L417 ceAbstractionStarter]: At program point L17'''(lines 17 21) the Hoare annotation is: (<= main_~i~0 1023) [2018-07-24 10:49:13,983 INFO L421 ceAbstractionStarter]: For program point L13(lines 13 15) no Hoare annotation was computed. [2018-07-24 10:49:13,983 INFO L421 ceAbstractionStarter]: For program point mainEXIT(lines 9 23) no Hoare annotation was computed. [2018-07-24 10:49:13,983 INFO L424 ceAbstractionStarter]: At program point mainENTRY(lines 9 23) the Hoare annotation is: true [2018-07-24 10:49:13,983 INFO L421 ceAbstractionStarter]: For program point L18(lines 18 20) no Hoare annotation was computed. [2018-07-24 10:49:13,983 INFO L421 ceAbstractionStarter]: For program point L17(lines 17 21) no Hoare annotation was computed. [2018-07-24 10:49:13,984 INFO L421 ceAbstractionStarter]: For program point L13''''(lines 13 15) no Hoare annotation was computed. [2018-07-24 10:49:13,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 10:49:13 BoogieIcfgContainer [2018-07-24 10:49:13,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 10:49:13,997 INFO L168 Benchmark]: Toolchain (without parser) took 3921.21 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 731.4 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -591.2 MB). Peak memory consumption was 140.2 MB. Max. memory is 7.1 GB. [2018-07-24 10:49:13,999 INFO L168 Benchmark]: CDTParser took 0.22 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 10:49:14,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.30 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 10:49:14,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.11 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 10:49:14,001 INFO L168 Benchmark]: Boogie Preprocessor took 26.56 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 10:49:14,002 INFO L168 Benchmark]: RCFGBuilder took 385.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 731.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -783.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2018-07-24 10:49:14,003 INFO L168 Benchmark]: TraceAbstraction took 3176.99 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: 181.5 MB). Peak memory consumption was 181.5 MB. Max. memory is 7.1 GB. [2018-07-24 10:49:14,008 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 302.30 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 25.11 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 26.56 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 385.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 731.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -783.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3176.99 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: 181.5 MB). Peak memory consumption was 181.5 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: i <= 1023 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. SAFE Result, 3.0s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 91 SDtfs, 44 SDslu, 125 SDs, 0 SdLazy, 131 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 321 GetRequests, 287 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=5, 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, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 13 PreInvPairs, 22 NumberOfFragments, 12 HoareAnnotationTreeSize, 13 FomulaSimplifications, 14 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 266 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 397 ConstructedInterpolants, 0 QuantifiedInterpolants, 13215 SizeOfPredicates, 10 NumberOfNonLiveVariables, 284 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 20 InterpolantComputations, 6 PerfectInterpolantSequences, 60/126 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-call3_true-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_10-49-14-022.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array_true-unreach-call3_true-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_10-49-14-022.csv Received shutdown request...