java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/trex01_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 09:56:22,707 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 09:56:22,709 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 09:56:22,722 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 09:56:22,722 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 09:56:22,723 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 09:56:22,724 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 09:56:22,726 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 09:56:22,728 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 09:56:22,729 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 09:56:22,730 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 09:56:22,730 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 09:56:22,731 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 09:56:22,732 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 09:56:22,733 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 09:56:22,734 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 09:56:22,734 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 09:56:22,736 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 09:56:22,738 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 09:56:22,740 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 09:56:22,741 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 09:56:22,742 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 09:56:22,745 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-18 09:56:22,753 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 09:56:22,779 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 09:56:22,779 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 09:56:22,780 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 09:56:22,780 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 09:56:22,781 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 09:56:22,781 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 09:56:22,781 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 09:56:22,781 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 09:56:22,782 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 09:56:22,782 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 09:56:22,782 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 09:56:22,783 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 09:56:22,784 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 09:56:22,784 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 09:56:22,784 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 09:56:22,784 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 09:56:22,785 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 09:56:22,785 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 09:56:22,785 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 09:56:22,785 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 09:56:22,785 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 09:56:22,786 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 09:56:22,786 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 09:56:22,786 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 09:56:22,786 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 09:56:22,788 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 09:56:22,789 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 09:56:22,789 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 09:56:22,789 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 09:56:22,789 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 09:56:22,789 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 09:56:22,790 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 09:56:22,790 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 09:56:22,790 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 09:56:22,846 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 09:56:22,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 09:56:22,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 09:56:22,864 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 09:56:22,864 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 09:56:22,865 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex01_true-unreach-call_true-termination.i [2018-09-18 09:56:23,205 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/366a8b5b9/f8290227b4414c13a66f2c540a2846cc/FLAGeb4961287 [2018-09-18 09:56:23,373 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 09:56:23,373 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex01_true-unreach-call_true-termination.i [2018-09-18 09:56:23,382 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/366a8b5b9/f8290227b4414c13a66f2c540a2846cc/FLAGeb4961287 [2018-09-18 09:56:23,408 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/366a8b5b9/f8290227b4414c13a66f2c540a2846cc [2018-09-18 09:56:23,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 09:56:23,428 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 09:56:23,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 09:56:23,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 09:56:23,442 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 09:56:23,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 09:56:23" (1/1) ... [2018-09-18 09:56:23,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68983f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:23, skipping insertion in model container [2018-09-18 09:56:23,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 09:56:23" (1/1) ... [2018-09-18 09:56:23,460 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 09:56:23,716 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 09:56:23,733 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 09:56:23,743 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 09:56:23,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:23 WrapperNode [2018-09-18 09:56:23,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 09:56:23,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 09:56:23,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 09:56:23,760 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 09:56:23,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:23" (1/1) ... [2018-09-18 09:56:23,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:23" (1/1) ... [2018-09-18 09:56:23,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 09:56:23,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 09:56:23,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 09:56:23,782 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 09:56:23,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:23" (1/1) ... [2018-09-18 09:56:23,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:23" (1/1) ... [2018-09-18 09:56:23,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:23" (1/1) ... [2018-09-18 09:56:23,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:23" (1/1) ... [2018-09-18 09:56:23,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:23" (1/1) ... [2018-09-18 09:56:23,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:23" (1/1) ... [2018-09-18 09:56:23,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:23" (1/1) ... [2018-09-18 09:56:23,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 09:56:23,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 09:56:23,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 09:56:23,806 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 09:56:23,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 09:56:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 09:56:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 09:56:23,875 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-09-18 09:56:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-09-18 09:56:23,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 09:56:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 09:56:23,876 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 09:56:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 09:56:23,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-18 09:56:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-18 09:56:24,477 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 09:56:24,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 09:56:24 BoogieIcfgContainer [2018-09-18 09:56:24,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 09:56:24,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 09:56:24,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 09:56:24,482 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 09:56:24,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 09:56:23" (1/3) ... [2018-09-18 09:56:24,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ce05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 09:56:24, skipping insertion in model container [2018-09-18 09:56:24,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:23" (2/3) ... [2018-09-18 09:56:24,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ce05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 09:56:24, skipping insertion in model container [2018-09-18 09:56:24,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 09:56:24" (3/3) ... [2018-09-18 09:56:24,485 INFO L112 eAbstractionObserver]: Analyzing ICFG trex01_true-unreach-call_true-termination.i [2018-09-18 09:56:24,495 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 09:56:24,503 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 09:56:24,550 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 09:56:24,550 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 09:56:24,551 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 09:56:24,551 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 09:56:24,551 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 09:56:24,551 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 09:56:24,551 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 09:56:24,551 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 09:56:24,551 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 09:56:24,568 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-09-18 09:56:24,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-18 09:56:24,574 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:24,576 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:24,576 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:24,582 INFO L82 PathProgramCache]: Analyzing trace with hash -623240960, now seen corresponding path program 1 times [2018-09-18 09:56:24,585 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:24,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:24,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:24,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:24,637 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:24,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:24,720 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 09:56:24,721 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-18 09:56:24,721 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 09:56:24,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-18 09:56:24,738 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-18 09:56:24,738 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-18 09:56:24,741 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2018-09-18 09:56:24,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:56:24,766 INFO L93 Difference]: Finished difference Result 54 states and 73 transitions. [2018-09-18 09:56:24,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-18 09:56:24,767 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-09-18 09:56:24,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:56:24,777 INFO L225 Difference]: With dead ends: 54 [2018-09-18 09:56:24,777 INFO L226 Difference]: Without dead ends: 17 [2018-09-18 09:56:24,781 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-18 09:56:24,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-09-18 09:56:24,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-09-18 09:56:24,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-09-18 09:56:24,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-09-18 09:56:24,815 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 14 [2018-09-18 09:56:24,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:56:24,816 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-09-18 09:56:24,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-18 09:56:24,816 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-09-18 09:56:24,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-18 09:56:24,817 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:24,821 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:24,821 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:24,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1863782436, now seen corresponding path program 1 times [2018-09-18 09:56:24,822 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:24,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:24,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:24,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:24,824 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:25,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:25,084 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 09:56:25,085 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 09:56:25,085 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 09:56:25,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 09:56:25,087 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 09:56:25,087 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 09:56:25,088 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2018-09-18 09:56:25,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:56:25,328 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-09-18 09:56:25,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-18 09:56:25,329 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-09-18 09:56:25,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:56:25,329 INFO L225 Difference]: With dead ends: 17 [2018-09-18 09:56:25,330 INFO L226 Difference]: Without dead ends: 0 [2018-09-18 09:56:25,331 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-18 09:56:25,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-18 09:56:25,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-18 09:56:25,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-18 09:56:25,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-18 09:56:25,332 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-09-18 09:56:25,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:56:25,333 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-18 09:56:25,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 09:56:25,333 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-18 09:56:25,333 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-18 09:56:25,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-18 09:56:25,390 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-18 09:56:25,390 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-18 09:56:25,390 INFO L426 ceAbstractionStarter]: For program point L25(lines 25 26) no Hoare annotation was computed. [2018-09-18 09:56:25,390 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-18 09:56:25,390 INFO L426 ceAbstractionStarter]: For program point L17(lines 11 33) no Hoare annotation was computed. [2018-09-18 09:56:25,390 INFO L426 ceAbstractionStarter]: For program point L13(lines 13 15) no Hoare annotation was computed. [2018-09-18 09:56:25,390 INFO L426 ceAbstractionStarter]: For program point fEXIT(lines 11 33) no Hoare annotation was computed. [2018-09-18 09:56:25,391 INFO L429 ceAbstractionStarter]: At program point fENTRY(lines 11 33) the Hoare annotation is: true [2018-09-18 09:56:25,391 INFO L426 ceAbstractionStarter]: For program point L24(lines 24 31) no Hoare annotation was computed. [2018-09-18 09:56:25,391 INFO L429 ceAbstractionStarter]: At program point L24-2(lines 22 32) the Hoare annotation is: true [2018-09-18 09:56:25,391 INFO L426 ceAbstractionStarter]: For program point L22-1(lines 22 32) no Hoare annotation was computed. [2018-09-18 09:56:25,391 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-18 09:56:25,391 INFO L426 ceAbstractionStarter]: For program point L22-3(lines 11 33) no Hoare annotation was computed. [2018-09-18 09:56:25,391 INFO L426 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-09-18 09:56:25,395 INFO L422 ceAbstractionStarter]: At program point L16-3(line 16) the Hoare annotation is: (<= 1 f_~z~0) [2018-09-18 09:56:25,395 INFO L422 ceAbstractionStarter]: At program point L16-4(line 16) the Hoare annotation is: (<= 1 f_~z~0) [2018-09-18 09:56:25,395 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-18 09:56:25,395 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-18 09:56:25,396 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-18 09:56:25,396 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-18 09:56:25,396 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 34 42) the Hoare annotation is: true [2018-09-18 09:56:25,396 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 34 42) no Hoare annotation was computed. [2018-09-18 09:56:25,396 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 34 42) no Hoare annotation was computed. [2018-09-18 09:56:25,397 INFO L429 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: true [2018-09-18 09:56:25,397 INFO L426 ceAbstractionStarter]: For program point L39-1(lines 36 40) no Hoare annotation was computed. [2018-09-18 09:56:25,397 INFO L429 ceAbstractionStarter]: At program point L37(line 37) the Hoare annotation is: true [2018-09-18 09:56:25,397 INFO L426 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-09-18 09:56:25,397 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-18 09:56:25,397 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-18 09:56:25,398 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-18 09:56:25,398 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-18 09:56:25,398 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-18 09:56:25,398 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-18 09:56:25,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 09:56:25 BoogieIcfgContainer [2018-09-18 09:56:25,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 09:56:25,415 INFO L168 Benchmark]: Toolchain (without parser) took 1992.90 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -729.5 MB). Peak memory consumption was 863.5 kB. Max. memory is 7.1 GB. [2018-09-18 09:56:25,417 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 09:56:25,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-18 09:56:25,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.66 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 09:56:25,422 INFO L168 Benchmark]: Boogie Preprocessor took 23.65 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 09:56:25,423 INFO L168 Benchmark]: RCFGBuilder took 672.51 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -766.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-09-18 09:56:25,424 INFO L168 Benchmark]: TraceAbstraction took 935.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-18 09:56:25,432 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 324.53 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 21.66 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 23.65 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 672.51 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -766.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 935.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 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: 16]: Loop Invariant Derived loop invariant: 1 <= z - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 54 SDtfs, 1 SDslu, 35 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 16 PreInvPairs, 20 NumberOfFragments, 15 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 533 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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/trex01_true-unreach-call_true-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_09-56-25-455.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/trex01_true-unreach-call_true-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_09-56-25-455.csv Received shutdown request...