java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 12:09:10,040 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 12:09:10,046 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 12:09:10,061 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 12:09:10,061 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 12:09:10,063 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 12:09:10,064 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 12:09:10,066 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 12:09:10,068 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 12:09:10,069 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 12:09:10,070 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 12:09:10,070 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 12:09:10,071 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 12:09:10,072 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 12:09:10,073 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 12:09:10,074 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 12:09:10,075 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 12:09:10,077 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 12:09:10,080 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 12:09:10,082 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 12:09:10,086 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 12:09:10,087 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 12:09:10,094 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 12:09:10,112 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 12:09:10,146 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 12:09:10,147 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 12:09:10,148 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 12:09:10,148 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 12:09:10,148 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 12:09:10,148 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 12:09:10,149 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 12:09:10,149 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 12:09:10,150 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 12:09:10,150 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 12:09:10,150 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 12:09:10,150 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 12:09:10,151 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 12:09:10,151 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 12:09:10,151 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 12:09:10,152 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 12:09:10,152 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 12:09:10,152 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 12:09:10,152 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 12:09:10,152 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 12:09:10,153 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 12:09:10,155 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 12:09:10,155 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 12:09:10,155 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 12:09:10,155 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 12:09:10,156 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 12:09:10,156 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 12:09:10,156 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 12:09:10,156 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 12:09:10,156 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 12:09:10,157 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 12:09:10,157 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 12:09:10,157 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 12:09:10,157 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 12:09:10,212 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 12:09:10,225 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 12:09:10,229 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 12:09:10,231 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 12:09:10,231 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 12:09:10,232 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2018-10-24 12:09:10,296 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/34dc7c620/3e686a18acb94feb8315cd192504125c/FLAG8e33f2cfb [2018-10-24 12:09:10,764 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 12:09:10,765 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2018-10-24 12:09:10,772 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/34dc7c620/3e686a18acb94feb8315cd192504125c/FLAG8e33f2cfb [2018-10-24 12:09:10,788 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/34dc7c620/3e686a18acb94feb8315cd192504125c [2018-10-24 12:09:10,803 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 12:09:10,805 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 12:09:10,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 12:09:10,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 12:09:10,810 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 12:09:10,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:09:10" (1/1) ... [2018-10-24 12:09:10,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b5a5b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:09:10, skipping insertion in model container [2018-10-24 12:09:10,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:09:10" (1/1) ... [2018-10-24 12:09:10,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 12:09:10,853 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 12:09:11,090 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:09:11,095 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 12:09:11,120 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:09:11,141 INFO L193 MainTranslator]: Completed translation [2018-10-24 12:09:11,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:09:11 WrapperNode [2018-10-24 12:09:11,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 12:09:11,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 12:09:11,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 12:09:11,143 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 12:09:11,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:09:11" (1/1) ... [2018-10-24 12:09:11,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:09:11" (1/1) ... [2018-10-24 12:09:11,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 12:09:11,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 12:09:11,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 12:09:11,187 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 12:09:11,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:09:11" (1/1) ... [2018-10-24 12:09:11,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:09:11" (1/1) ... [2018-10-24 12:09:11,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:09:11" (1/1) ... [2018-10-24 12:09:11,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:09:11" (1/1) ... [2018-10-24 12:09:11,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:09:11" (1/1) ... [2018-10-24 12:09:11,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:09:11" (1/1) ... [2018-10-24 12:09:11,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:09:11" (1/1) ... [2018-10-24 12:09:11,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 12:09:11,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 12:09:11,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 12:09:11,218 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 12:09:11,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:09:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 12:09:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 12:09:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 12:09:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 12:09:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 12:09:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 12:09:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 12:09:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-24 12:09:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-24 12:09:11,761 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 12:09:11,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:09:11 BoogieIcfgContainer [2018-10-24 12:09:11,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 12:09:11,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 12:09:11,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 12:09:11,767 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 12:09:11,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:09:10" (1/3) ... [2018-10-24 12:09:11,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25806be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:09:11, skipping insertion in model container [2018-10-24 12:09:11,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:09:11" (2/3) ... [2018-10-24 12:09:11,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25806be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:09:11, skipping insertion in model container [2018-10-24 12:09:11,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:09:11" (3/3) ... [2018-10-24 12:09:11,771 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2018-10-24 12:09:11,782 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 12:09:11,797 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 12:09:11,818 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 12:09:11,858 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 12:09:11,859 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 12:09:11,859 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 12:09:11,859 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 12:09:11,859 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 12:09:11,859 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 12:09:11,859 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 12:09:11,860 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 12:09:11,881 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-10-24 12:09:11,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-24 12:09:11,888 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:09:11,889 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:09:11,892 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:09:11,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:09:11,899 INFO L82 PathProgramCache]: Analyzing trace with hash -900586403, now seen corresponding path program 1 times [2018-10-24 12:09:11,902 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:09:11,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:09:11,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:09:11,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:09:11,960 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:09:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:09:12,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:09:12,052 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:09:12,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 12:09:12,053 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:09:12,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-24 12:09:12,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-24 12:09:12,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 12:09:12,076 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2018-10-24 12:09:12,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:09:12,103 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2018-10-24 12:09:12,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 12:09:12,104 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-10-24 12:09:12,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:09:12,115 INFO L225 Difference]: With dead ends: 39 [2018-10-24 12:09:12,115 INFO L226 Difference]: Without dead ends: 17 [2018-10-24 12:09:12,119 INFO L605 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 [2018-10-24 12:09:12,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-10-24 12:09:12,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-10-24 12:09:12,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-10-24 12:09:12,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-10-24 12:09:12,163 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-10-24 12:09:12,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:09:12,164 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-10-24 12:09:12,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-24 12:09:12,164 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-10-24 12:09:12,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-24 12:09:12,165 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:09:12,165 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:09:12,166 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:09:12,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:09:12,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1574784468, now seen corresponding path program 1 times [2018-10-24 12:09:12,167 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:09:12,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:09:12,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:09:12,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:09:12,168 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:09:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:09:12,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:09:12,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:09:12,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 12:09:12,447 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:09:12,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 12:09:12,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 12:09:12,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-24 12:09:12,452 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2018-10-24 12:09:12,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:09:12,581 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-10-24 12:09:12,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 12:09:12,582 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-10-24 12:09:12,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:09:12,582 INFO L225 Difference]: With dead ends: 17 [2018-10-24 12:09:12,583 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 12:09:12,584 INFO L605 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 [2018-10-24 12:09:12,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 12:09:12,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 12:09:12,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 12:09:12,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 12:09:12,585 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-10-24 12:09:12,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:09:12,586 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 12:09:12,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 12:09:12,586 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 12:09:12,586 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 12:09:12,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 12:09:12,647 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-24 12:09:12,648 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-24 12:09:12,648 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-24 12:09:12,648 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-24 12:09:12,648 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-24 12:09:12,649 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-24 12:09:12,649 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-24 12:09:12,649 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 27 33) no Hoare annotation was computed. [2018-10-24 12:09:12,649 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 37) no Hoare annotation was computed. [2018-10-24 12:09:12,649 INFO L428 ceAbstractionStarter]: At program point L27-3(lines 27 33) the Hoare annotation is: true [2018-10-24 12:09:12,649 INFO L428 ceAbstractionStarter]: At program point L27-4(lines 27 33) the Hoare annotation is: true [2018-10-24 12:09:12,650 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 37) no Hoare annotation was computed. [2018-10-24 12:09:12,650 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 37) the Hoare annotation is: true [2018-10-24 12:09:12,650 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 20) no Hoare annotation was computed. [2018-10-24 12:09:12,650 INFO L425 ceAbstractionStarter]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2018-10-24 12:09:12,650 INFO L428 ceAbstractionStarter]: At program point L18-4(lines 18 20) the Hoare annotation is: true [2018-10-24 12:09:12,651 INFO L425 ceAbstractionStarter]: For program point L18-5(lines 18 20) no Hoare annotation was computed. [2018-10-24 12:09:12,651 INFO L425 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-10-24 12:09:12,651 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-10-24 12:09:12,651 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-10-24 12:09:12,651 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-10-24 12:09:12,652 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-10-24 12:09:12,652 INFO L425 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-10-24 12:09:12,652 INFO L425 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-10-24 12:09:12,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:09:12 BoogieIcfgContainer [2018-10-24 12:09:12,659 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 12:09:12,661 INFO L168 Benchmark]: Toolchain (without parser) took 1856.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 726.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -725.7 MB). Peak memory consumption was 422.0 kB. Max. memory is 7.1 GB. [2018-10-24 12:09:12,663 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-10-24 12:09:12,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.04 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. [2018-10-24 12:09:12,665 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.46 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. [2018-10-24 12:09:12,665 INFO L168 Benchmark]: Boogie Preprocessor took 30.09 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. [2018-10-24 12:09:12,666 INFO L168 Benchmark]: RCFGBuilder took 544.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 726.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -767.5 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. [2018-10-24 12:09:12,667 INFO L168 Benchmark]: TraceAbstraction took 896.58 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB. [2018-10-24 12:09:12,672 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 336.04 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 44.46 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 30.09 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 544.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 726.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -767.5 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 896.58 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 40 SDtfs, 1 SDslu, 29 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 8 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 8 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 396 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! Received shutdown request...