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/lu.cmp_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 10:44:21,315 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 10:44:21,317 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 10:44:21,332 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 10:44:21,333 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 10:44:21,334 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 10:44:21,338 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 10:44:21,340 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 10:44:21,344 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 10:44:21,345 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 10:44:21,347 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 10:44:21,347 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 10:44:21,348 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 10:44:21,349 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 10:44:21,353 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 10:44:21,355 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 10:44:21,357 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 10:44:21,359 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 10:44:21,360 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 10:44:21,370 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 10:44:21,371 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 10:44:21,375 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 10:44:21,379 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 10:44:21,379 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 10:44:21,380 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 10:44:21,383 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 10:44:21,384 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 10:44:21,385 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 10:44:21,387 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 10:44:21,389 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 10:44:21,389 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 10:44:21,390 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 10:44:21,390 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 10:44:21,390 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 10:44:21,391 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 10:44:21,392 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 10:44:21,392 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 10:44:21,407 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 10:44:21,408 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 10:44:21,408 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 10:44:21,409 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 10:44:21,409 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 10:44:21,409 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 10:44:21,409 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 10:44:21,409 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 10:44:21,409 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 10:44:21,410 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 10:44:21,410 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 10:44:21,411 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 10:44:21,412 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 10:44:21,412 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 10:44:21,412 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 10:44:21,412 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 10:44:21,412 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 10:44:21,413 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 10:44:21,413 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 10:44:21,413 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 10:44:21,413 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 10:44:21,415 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 10:44:21,415 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 10:44:21,415 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 10:44:21,415 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 10:44:21,416 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 10:44:21,416 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 10:44:21,416 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 10:44:21,416 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 10:44:21,417 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 10:44:21,417 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 10:44:21,417 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 10:44:21,417 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 10:44:21,493 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 10:44:21,513 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 10:44:21,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 10:44:21,522 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 10:44:21,522 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 10:44:21,523 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/lu.cmp_true-unreach-call.i [2018-07-24 10:44:21,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b149528/55d739208cbd47cf9a11cb3032b695fd/FLAG5bffebe33 [2018-07-24 10:44:22,060 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 10:44:22,061 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/lu.cmp_true-unreach-call.i [2018-07-24 10:44:22,070 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b149528/55d739208cbd47cf9a11cb3032b695fd/FLAG5bffebe33 [2018-07-24 10:44:22,084 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b149528/55d739208cbd47cf9a11cb3032b695fd [2018-07-24 10:44:22,095 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 10:44:22,096 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 10:44:22,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 10:44:22,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 10:44:22,110 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 10:44:22,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:44:22" (1/1) ... [2018-07-24 10:44:22,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ba7d783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:22, skipping insertion in model container [2018-07-24 10:44:22,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:44:22" (1/1) ... [2018-07-24 10:44:22,305 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 10:44:22,400 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:44:22,572 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 10:44:22,602 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:44:22,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:22 WrapperNode [2018-07-24 10:44:22,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 10:44:22,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 10:44:22,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 10:44:22,721 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 10:44:22,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:22" (1/1) ... [2018-07-24 10:44:22,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:22" (1/1) ... [2018-07-24 10:44:22,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 10:44:22,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 10:44:22,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 10:44:22,798 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 10:44:22,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:22" (1/1) ... [2018-07-24 10:44:22,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:22" (1/1) ... [2018-07-24 10:44:22,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:22" (1/1) ... [2018-07-24 10:44:22,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:22" (1/1) ... [2018-07-24 10:44:22,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:22" (1/1) ... [2018-07-24 10:44:22,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:22" (1/1) ... [2018-07-24 10:44:22,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:22" (1/1) ... [2018-07-24 10:44:22,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 10:44:22,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 10:44:22,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 10:44:22,955 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 10:44:22,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:22" (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 10:44:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 10:44:23,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 10:44:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__fabs [2018-07-24 10:44:23,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__fabs [2018-07-24 10:44:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assert [2018-07-24 10:44:23,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assert [2018-07-24 10:44:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__ludcmp [2018-07-24 10:44:23,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__ludcmp [2018-07-24 10:44:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 10:44:23,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 10:44:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 10:44:23,190 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 10:44:34,645 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 10:44:34,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:44:34 BoogieIcfgContainer [2018-07-24 10:44:34,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 10:44:34,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 10:44:34,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 10:44:34,650 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 10:44:34,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 10:44:22" (1/3) ... [2018-07-24 10:44:34,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c309d03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:44:34, skipping insertion in model container [2018-07-24 10:44:34,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:22" (2/3) ... [2018-07-24 10:44:34,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c309d03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:44:34, skipping insertion in model container [2018-07-24 10:44:34,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:44:34" (3/3) ... [2018-07-24 10:44:34,654 INFO L112 eAbstractionObserver]: Analyzing ICFG lu.cmp_true-unreach-call.i [2018-07-24 10:44:34,663 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 10:44:34,671 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 10:44:34,720 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 10:44:34,721 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 10:44:34,721 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 10:44:34,722 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 10:44:34,722 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 10:44:34,722 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 10:44:34,722 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 10:44:34,723 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 10:44:34,723 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 10:44:34,743 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-07-24 10:44:34,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-24 10:44:34,749 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:44:34,750 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:44:34,750 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:44:34,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1031654914, now seen corresponding path program 1 times [2018-07-24 10:44:34,760 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:44:34,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:34,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:34,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:34,802 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:44:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:36,388 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 10:44:36,392 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:44:36,392 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 10:44:36,393 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:44:36,399 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-24 10:44:36,414 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-24 10:44:36,415 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-24 10:44:36,419 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-07-24 10:44:36,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:44:36,460 INFO L93 Difference]: Finished difference Result 144 states and 200 transitions. [2018-07-24 10:44:36,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-24 10:44:36,463 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-07-24 10:44:36,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:44:36,473 INFO L225 Difference]: With dead ends: 144 [2018-07-24 10:44:36,473 INFO L226 Difference]: Without dead ends: 22 [2018-07-24 10:44:36,483 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 10:44:36,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-07-24 10:44:36,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-07-24 10:44:36,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-07-24 10:44:36,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-07-24 10:44:36,527 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 13 [2018-07-24 10:44:36,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:44:36,528 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-07-24 10:44:36,530 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-24 10:44:36,531 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-07-24 10:44:36,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-24 10:44:36,533 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:44:36,533 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:44:36,534 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:44:36,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1436118667, now seen corresponding path program 1 times [2018-07-24 10:44:36,535 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:44:36,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:36,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:36,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:36,537 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:44:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:37,843 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 10:44:37,844 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:44:37,844 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 10:44:37,844 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:44:37,846 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 10:44:37,846 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 10:44:37,847 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-24 10:44:37,847 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 4 states. [2018-07-24 10:44:38,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:44:38,240 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2018-07-24 10:44:38,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 10:44:38,242 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-07-24 10:44:38,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:44:38,247 INFO L225 Difference]: With dead ends: 53 [2018-07-24 10:44:38,248 INFO L226 Difference]: Without dead ends: 37 [2018-07-24 10:44:38,249 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-24 10:44:38,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-07-24 10:44:38,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2018-07-24 10:44:38,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-07-24 10:44:38,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2018-07-24 10:44:38,274 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 14 [2018-07-24 10:44:38,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:44:38,276 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2018-07-24 10:44:38,276 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 10:44:38,277 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2018-07-24 10:44:38,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-07-24 10:44:38,280 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:44:38,281 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:44:38,281 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:44:38,281 INFO L82 PathProgramCache]: Analyzing trace with hash 2024299098, now seen corresponding path program 1 times [2018-07-24 10:44:38,281 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:44:38,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:38,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:38,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:38,283 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:44:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:39,618 WARN L169 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 7 [2018-07-24 10:44:39,870 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 10:44:39,871 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:44:39,871 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 10:44:39,871 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:44:39,872 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 10:44:39,872 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 10:44:39,872 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-07-24 10:44:39,872 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 6 states. [2018-07-24 10:44:40,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:44:40,132 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-07-24 10:44:40,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 10:44:40,132 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-07-24 10:44:40,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:44:40,133 INFO L225 Difference]: With dead ends: 41 [2018-07-24 10:44:40,133 INFO L226 Difference]: Without dead ends: 39 [2018-07-24 10:44:40,134 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-07-24 10:44:40,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-07-24 10:44:40,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-07-24 10:44:40,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-07-24 10:44:40,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2018-07-24 10:44:40,141 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 19 [2018-07-24 10:44:40,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:44:40,142 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2018-07-24 10:44:40,142 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 10:44:40,142 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-07-24 10:44:40,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-07-24 10:44:40,145 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:44:40,145 INFO L353 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:44:40,147 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:44:40,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1075076318, now seen corresponding path program 1 times [2018-07-24 10:44:40,148 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:44:40,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:40,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:40,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:40,149 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:44:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:41,865 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:41,865 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:41,865 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 10:44:41,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:41,876 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:44:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:41,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:42,045 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-07-24 10:44:42,045 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:42,409 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-07-24 10:44:42,445 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:42,445 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 10:44:42,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:42,478 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:44:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:43,781 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:43,786 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-24 10:44:43,787 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:43,934 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-24 10:44:43,940 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-07-24 10:44:43,940 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 5, 5, 4] total 15 [2018-07-24 10:44:43,941 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:44:43,941 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 10:44:43,941 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 10:44:43,942 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-07-24 10:44:43,943 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 4 states. [2018-07-24 10:44:44,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:44:44,134 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2018-07-24 10:44:44,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 10:44:44,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-07-24 10:44:44,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:44:44,140 INFO L225 Difference]: With dead ends: 60 [2018-07-24 10:44:44,142 INFO L226 Difference]: Without dead ends: 44 [2018-07-24 10:44:44,143 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-07-24 10:44:44,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-07-24 10:44:44,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2018-07-24 10:44:44,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-07-24 10:44:44,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2018-07-24 10:44:44,153 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 30 [2018-07-24 10:44:44,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:44:44,154 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2018-07-24 10:44:44,154 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 10:44:44,154 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-07-24 10:44:44,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-07-24 10:44:44,155 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:44:44,155 INFO L353 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:44:44,156 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:44:44,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1183553561, now seen corresponding path program 2 times [2018-07-24 10:44:44,156 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:44:44,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:44,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:44,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:44,158 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:44:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:45,515 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:44:45,515 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:45,516 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 10:44:45,534 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-24 10:44:45,534 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:44:45,605 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-07-24 10:44:45,605 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:44:45,612 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:46,038 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-24 10:44:46,039 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:46,252 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-24 10:44:46,283 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:46,284 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 10:44:46,310 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-24 10:44:46,310 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:44:46,916 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-07-24 10:44:46,916 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:44:47,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:47,406 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-24 10:44:47,406 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:47,459 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-24 10:44:47,464 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:44:47,464 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6, 6, 6] total 13 [2018-07-24 10:44:47,464 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:44:47,465 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 10:44:47,465 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 10:44:47,465 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-07-24 10:44:47,465 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 9 states. [2018-07-24 10:44:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:44:47,726 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2018-07-24 10:44:47,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 10:44:47,727 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-07-24 10:44:47,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:44:47,727 INFO L225 Difference]: With dead ends: 62 [2018-07-24 10:44:47,727 INFO L226 Difference]: Without dead ends: 0 [2018-07-24 10:44:47,728 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2018-07-24 10:44:47,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-24 10:44:47,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-24 10:44:47,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-24 10:44:47,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-24 10:44:47,729 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2018-07-24 10:44:47,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:44:47,729 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-24 10:44:47,730 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 10:44:47,730 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-24 10:44:47,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-24 10:44:47,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-24 10:44:47,978 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-07-24 10:44:47,978 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-07-24 10:44:47,979 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-07-24 10:44:47,979 INFO L421 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__fabsFINAL(lines 11 17) no Hoare annotation was computed. [2018-07-24 10:44:47,979 INFO L424 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__fabsENTRY(lines 11 17) the Hoare annotation is: true [2018-07-24 10:44:47,979 INFO L421 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__fabsEXIT(lines 11 17) no Hoare annotation was computed. [2018-07-24 10:44:47,979 INFO L421 ceAbstractionStarter]: For program point L14''(lines 14 15) no Hoare annotation was computed. [2018-07-24 10:44:47,979 INFO L421 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-07-24 10:44:47,980 INFO L421 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-07-24 10:44:47,980 INFO L424 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-07-24 10:44:47,980 INFO L421 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-07-24 10:44:47,980 INFO L421 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-07-24 10:44:47,980 INFO L421 ceAbstractionStarter]: For program point L4''(lines 3 8) no Hoare annotation was computed. [2018-07-24 10:44:47,980 INFO L421 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-07-24 10:44:47,981 INFO L421 ceAbstractionStarter]: For program point L50'(lines 50 52) no Hoare annotation was computed. [2018-07-24 10:44:47,981 INFO L421 ceAbstractionStarter]: For program point L64(lines 64 70) no Hoare annotation was computed. [2018-07-24 10:44:47,981 INFO L421 ceAbstractionStarter]: For program point L67(lines 67 68) no Hoare annotation was computed. [2018-07-24 10:44:47,981 INFO L424 ceAbstractionStarter]: At program point L75'''(lines 75 76) the Hoare annotation is: true [2018-07-24 10:44:47,981 INFO L424 ceAbstractionStarter]: At program point L72'''(lines 72 78) the Hoare annotation is: true [2018-07-24 10:44:47,981 INFO L421 ceAbstractionStarter]: For program point L72''(lines 72 78) no Hoare annotation was computed. [2018-07-24 10:44:47,981 INFO L421 ceAbstractionStarter]: For program point L47''''(lines 47 54) no Hoare annotation was computed. [2018-07-24 10:44:47,982 INFO L421 ceAbstractionStarter]: For program point L64''(lines 64 70) no Hoare annotation was computed. [2018-07-24 10:44:47,982 INFO L421 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__ludcmpFINAL(lines 39 80) no Hoare annotation was computed. [2018-07-24 10:44:47,982 INFO L421 ceAbstractionStarter]: For program point L72(lines 72 78) no Hoare annotation was computed. [2018-07-24 10:44:47,982 INFO L421 ceAbstractionStarter]: For program point L75(lines 75 76) no Hoare annotation was computed. [2018-07-24 10:44:47,982 INFO L421 ceAbstractionStarter]: For program point L46'(line 46) no Hoare annotation was computed. [2018-07-24 10:44:47,982 INFO L424 ceAbstractionStarter]: At program point L64'''(lines 64 70) the Hoare annotation is: true [2018-07-24 10:44:47,983 INFO L421 ceAbstractionStarter]: For program point L58''(lines 58 59) no Hoare annotation was computed. [2018-07-24 10:44:47,983 INFO L424 ceAbstractionStarter]: At program point L58'''(lines 58 59) the Hoare annotation is: true [2018-07-24 10:44:47,983 INFO L424 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__ludcmpENTRY(lines 39 80) the Hoare annotation is: true [2018-07-24 10:44:47,983 INFO L421 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__ludcmpEXIT(lines 39 80) no Hoare annotation was computed. [2018-07-24 10:44:47,983 INFO L424 ceAbstractionStarter]: At program point L44'''(lines 44 62) the Hoare annotation is: true [2018-07-24 10:44:47,983 INFO L421 ceAbstractionStarter]: For program point L72''''(lines 72 78) no Hoare annotation was computed. [2018-07-24 10:44:47,984 INFO L424 ceAbstractionStarter]: At program point L55'''(lines 55 61) the Hoare annotation is: true [2018-07-24 10:44:47,984 INFO L421 ceAbstractionStarter]: For program point L44''''(lines 44 62) no Hoare annotation was computed. [2018-07-24 10:44:47,984 INFO L421 ceAbstractionStarter]: For program point L55''(lines 55 61) no Hoare annotation was computed. [2018-07-24 10:44:47,984 INFO L421 ceAbstractionStarter]: For program point L51''(lines 51 52) no Hoare annotation was computed. [2018-07-24 10:44:47,984 INFO L421 ceAbstractionStarter]: For program point L64''''(lines 64 70) no Hoare annotation was computed. [2018-07-24 10:44:47,984 INFO L421 ceAbstractionStarter]: For program point L47''(lines 47 54) no Hoare annotation was computed. [2018-07-24 10:44:47,985 INFO L424 ceAbstractionStarter]: At program point L47'''(lines 47 54) the Hoare annotation is: true [2018-07-24 10:44:47,985 INFO L421 ceAbstractionStarter]: For program point L75''(lines 75 76) no Hoare annotation was computed. [2018-07-24 10:44:47,985 INFO L421 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-07-24 10:44:47,985 INFO L421 ceAbstractionStarter]: For program point L44(lines 44 62) no Hoare annotation was computed. [2018-07-24 10:44:47,985 INFO L421 ceAbstractionStarter]: For program point L47(lines 47 54) no Hoare annotation was computed. [2018-07-24 10:44:47,985 INFO L424 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: true [2018-07-24 10:44:47,985 INFO L421 ceAbstractionStarter]: For program point L67''''(lines 67 68) no Hoare annotation was computed. [2018-07-24 10:44:47,986 INFO L424 ceAbstractionStarter]: At program point L67'''(lines 67 68) the Hoare annotation is: true [2018-07-24 10:44:47,986 INFO L421 ceAbstractionStarter]: For program point L75''''(lines 75 76) no Hoare annotation was computed. [2018-07-24 10:44:47,986 INFO L421 ceAbstractionStarter]: For program point L58''''(lines 58 59) no Hoare annotation was computed. [2018-07-24 10:44:47,986 INFO L421 ceAbstractionStarter]: For program point L67''(lines 67 68) no Hoare annotation was computed. [2018-07-24 10:44:47,986 INFO L421 ceAbstractionStarter]: For program point L50(lines 50 52) no Hoare annotation was computed. [2018-07-24 10:44:47,986 INFO L421 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2018-07-24 10:44:47,986 INFO L421 ceAbstractionStarter]: For program point L44''(lines 44 62) no Hoare annotation was computed. [2018-07-24 10:44:47,987 INFO L424 ceAbstractionStarter]: At program point L51'''(lines 51 52) the Hoare annotation is: true [2018-07-24 10:44:47,987 INFO L421 ceAbstractionStarter]: For program point L55(lines 55 61) no Hoare annotation was computed. [2018-07-24 10:44:47,987 INFO L421 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2018-07-24 10:44:47,987 INFO L424 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-07-24 10:44:47,987 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-07-24 10:44:47,987 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-07-24 10:44:47,987 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-07-24 10:44:47,988 INFO L424 ceAbstractionStarter]: At program point L23''''(lines 23 34) the Hoare annotation is: true [2018-07-24 10:44:47,988 INFO L421 ceAbstractionStarter]: For program point L23(lines 23 34) no Hoare annotation was computed. [2018-07-24 10:44:47,988 INFO L421 ceAbstractionStarter]: For program point L26(lines 26 31) no Hoare annotation was computed. [2018-07-24 10:44:47,988 INFO L421 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-07-24 10:44:47,988 INFO L417 ceAbstractionStarter]: At program point L23'''(lines 23 34) the Hoare annotation is: (or (and (<= 1 main_~i~0) (<= main_~n~0 5) (<= 5 main_~n~0)) (and (= main_~n~0 5) (= main_~i~0 0))) [2018-07-24 10:44:47,989 INFO L417 ceAbstractionStarter]: At program point L26''''(lines 26 31) the Hoare annotation is: (or (and (<= 1 main_~i~0) (<= main_~n~0 5) (<= main_~i~0 5) (<= 5 main_~n~0)) (and (= main_~n~0 5) (= main_~i~0 0))) [2018-07-24 10:44:47,989 INFO L421 ceAbstractionStarter]: For program point mainFINAL(lines 18 38) no Hoare annotation was computed. [2018-07-24 10:44:47,989 INFO L421 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-07-24 10:44:47,989 INFO L421 ceAbstractionStarter]: For program point L23''(lines 23 34) no Hoare annotation was computed. [2018-07-24 10:44:47,989 INFO L421 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-07-24 10:44:47,989 INFO L421 ceAbstractionStarter]: For program point mainEXIT(lines 18 38) no Hoare annotation was computed. [2018-07-24 10:44:47,990 INFO L424 ceAbstractionStarter]: At program point mainENTRY(lines 18 38) the Hoare annotation is: true [2018-07-24 10:44:47,990 INFO L421 ceAbstractionStarter]: For program point L29''(line 29) no Hoare annotation was computed. [2018-07-24 10:44:47,990 INFO L421 ceAbstractionStarter]: For program point L26''(lines 26 31) no Hoare annotation was computed. [2018-07-24 10:44:47,990 INFO L417 ceAbstractionStarter]: At program point L26'''(lines 26 31) the Hoare annotation is: (or (and (<= 1 main_~i~0) (<= main_~n~0 5) (<= main_~i~0 5) (<= 5 main_~n~0)) (and (= main_~n~0 5) (= main_~i~0 0))) [2018-07-24 10:44:48,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 10:44:48 BoogieIcfgContainer [2018-07-24 10:44:48,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 10:44:48,014 INFO L168 Benchmark]: Toolchain (without parser) took 25918.65 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -308.3 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-07-24 10:44:48,017 INFO L168 Benchmark]: CDTParser took 0.25 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 10:44:48,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.07 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 10:44:48,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.74 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 10:44:48,019 INFO L168 Benchmark]: Boogie Preprocessor took 156.20 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 10:44:48,020 INFO L168 Benchmark]: RCFGBuilder took 11691.85 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -443.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 10:44:48,023 INFO L168 Benchmark]: TraceAbstraction took 13364.84 ms. Allocated memory was 2.8 GB in the beginning and 3.0 GB in the end (delta: 202.9 MB). Free memory was 1.8 GB in the beginning and 1.7 GB in the end (delta: 82.7 MB). Peak memory consumption was 285.6 MB. Max. memory is 7.1 GB. [2018-07-24 10:44:48,033 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 620.07 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 76.74 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 156.20 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. * RCFGBuilder took 11691.85 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -443.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 13364.84 ms. Allocated memory was 2.8 GB in the beginning and 3.0 GB in the end (delta: 202.9 MB). Free memory was 1.8 GB in the beginning and 1.7 GB in the end (delta: 82.7 MB). Peak memory consumption was 285.6 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: 51]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((1 <= i && n <= 5) && 5 <= n) || (n == 5 && i == 0) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (((1 <= i && n <= 5) && i <= 5) && 5 <= n) || (n == 5 && i == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 75 locations, 1 error locations. SAFE Result, 13.2s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 158 SDtfs, 69 SDslu, 190 SDs, 0 SdLazy, 180 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 289 GetRequests, 251 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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, 17 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 38 PreInvPairs, 58 NumberOfFragments, 78 HoareAnnotationTreeSize, 38 FomulaSimplifications, 56 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 241 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 358 ConstructedInterpolants, 0 QuantifiedInterpolants, 25770 SizeOfPredicates, 12 NumberOfNonLiveVariables, 242 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 90/157 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/lu.cmp_true-unreach-call.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_10-44-48-065.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/lu.cmp_true-unreach-call.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_10-44-48-065.csv Received shutdown request...