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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-get-tag_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 10:36:25,006 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 10:36:25,008 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 10:36:25,026 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 10:36:25,026 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 10:36:25,027 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 10:36:25,030 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 10:36:25,033 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 10:36:25,036 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 10:36:25,036 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 10:36:25,044 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 10:36:25,044 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 10:36:25,049 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 10:36:25,052 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 10:36:25,055 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 10:36:25,056 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 10:36:25,059 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 10:36:25,060 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 10:36:25,064 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 10:36:25,066 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 10:36:25,069 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 10:36:25,070 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 10:36:25,072 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 10:36:25,073 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 10:36:25,073 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 10:36:25,074 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 10:36:25,075 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 10:36:25,079 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 10:36:25,079 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 10:36:25,080 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 10:36:25,082 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 10:36:25,083 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-07 10:36:25,087 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 10:36:25,113 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 10:36:25,113 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 10:36:25,114 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 10:36:25,114 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 10:36:25,115 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 10:36:25,115 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 10:36:25,115 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 10:36:25,115 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 10:36:25,115 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 10:36:25,116 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 10:36:25,116 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 10:36:25,116 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 10:36:25,117 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 10:36:25,117 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 10:36:25,118 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 10:36:25,118 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 10:36:25,118 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 10:36:25,118 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 10:36:25,119 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 10:36:25,119 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 10:36:25,119 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 10:36:25,119 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 10:36:25,119 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 10:36:25,121 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 10:36:25,121 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 10:36:25,122 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 10:36:25,122 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 10:36:25,122 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 10:36:25,122 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 10:36:25,122 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 10:36:25,123 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 10:36:25,123 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 10:36:25,123 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 10:36:25,123 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 10:36:25,123 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 10:36:25,124 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 10:36:25,191 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 10:36:25,209 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 10:36:25,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 10:36:25,214 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 10:36:25,214 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 10:36:25,215 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag_true-unreach-call_true-termination.i [2018-11-07 10:36:25,275 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878ea14bb/037b8049cc7643acba799946d03dea3e/FLAG04ecaa794 [2018-11-07 10:36:25,729 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 10:36:25,730 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag_true-unreach-call_true-termination.i [2018-11-07 10:36:25,737 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878ea14bb/037b8049cc7643acba799946d03dea3e/FLAG04ecaa794 [2018-11-07 10:36:25,751 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878ea14bb/037b8049cc7643acba799946d03dea3e [2018-11-07 10:36:25,762 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 10:36:25,763 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 10:36:25,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 10:36:25,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 10:36:25,768 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 10:36:25,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:36:25" (1/1) ... [2018-11-07 10:36:25,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1988d8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:36:25, skipping insertion in model container [2018-11-07 10:36:25,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:36:25" (1/1) ... [2018-11-07 10:36:25,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 10:36:25,804 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 10:36:25,978 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 10:36:25,983 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 10:36:26,014 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 10:36:26,035 INFO L193 MainTranslator]: Completed translation [2018-11-07 10:36:26,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:36:26 WrapperNode [2018-11-07 10:36:26,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 10:36:26,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 10:36:26,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 10:36:26,037 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 10:36:26,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:36:26" (1/1) ... [2018-11-07 10:36:26,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:36:26" (1/1) ... [2018-11-07 10:36:26,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 10:36:26,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 10:36:26,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 10:36:26,062 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 10:36:26,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:36:26" (1/1) ... [2018-11-07 10:36:26,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:36:26" (1/1) ... [2018-11-07 10:36:26,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:36:26" (1/1) ... [2018-11-07 10:36:26,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:36:26" (1/1) ... [2018-11-07 10:36:26,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:36:26" (1/1) ... [2018-11-07 10:36:26,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:36:26" (1/1) ... [2018-11-07 10:36:26,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:36:26" (1/1) ... [2018-11-07 10:36:26,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 10:36:26,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 10:36:26,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 10:36:26,116 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 10:36:26,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:36:26" (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 [2018-11-07 10:36:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 10:36:26,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 10:36:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 10:36:26,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 10:36:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 10:36:26,288 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 10:36:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-07 10:36:26,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-07 10:36:26,775 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 10:36:26,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:36:26 BoogieIcfgContainer [2018-11-07 10:36:26,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 10:36:26,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 10:36:26,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 10:36:26,780 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 10:36:26,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:36:25" (1/3) ... [2018-11-07 10:36:26,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238417cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:36:26, skipping insertion in model container [2018-11-07 10:36:26,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:36:26" (2/3) ... [2018-11-07 10:36:26,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238417cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:36:26, skipping insertion in model container [2018-11-07 10:36:26,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:36:26" (3/3) ... [2018-11-07 10:36:26,784 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag_true-unreach-call_true-termination.i [2018-11-07 10:36:26,793 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 10:36:26,800 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 10:36:26,813 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 10:36:26,845 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 10:36:26,846 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 10:36:26,846 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 10:36:26,846 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 10:36:26,846 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 10:36:26,846 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 10:36:26,846 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 10:36:26,847 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 10:36:26,866 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-11-07 10:36:26,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-07 10:36:26,872 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 10:36:26,874 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 10:36:26,876 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 10:36:26,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 10:36:26,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1656305570, now seen corresponding path program 1 times [2018-11-07 10:36:26,884 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 10:36:26,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:36:26,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 10:36:26,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:36:26,929 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 10:36:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 10:36:26,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 10:36:26,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 10:36:26,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-07 10:36:26,989 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 10:36:26,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-07 10:36:27,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-07 10:36:27,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-07 10:36:27,012 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-11-07 10:36:27,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 10:36:27,045 INFO L93 Difference]: Finished difference Result 91 states and 160 transitions. [2018-11-07 10:36:27,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-07 10:36:27,046 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-11-07 10:36:27,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 10:36:27,057 INFO L225 Difference]: With dead ends: 91 [2018-11-07 10:36:27,057 INFO L226 Difference]: Without dead ends: 44 [2018-11-07 10:36:27,062 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 [2018-11-07 10:36:27,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-07 10:36:27,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-07 10:36:27,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-07 10:36:27,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 62 transitions. [2018-11-07 10:36:27,112 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 62 transitions. Word has length 12 [2018-11-07 10:36:27,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 10:36:27,113 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 62 transitions. [2018-11-07 10:36:27,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-07 10:36:27,113 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions. [2018-11-07 10:36:27,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-07 10:36:27,114 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 10:36:27,114 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 10:36:27,115 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 10:36:27,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 10:36:27,115 INFO L82 PathProgramCache]: Analyzing trace with hash -145433870, now seen corresponding path program 1 times [2018-11-07 10:36:27,115 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 10:36:27,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:36:27,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 10:36:27,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:36:27,117 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 10:36:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 10:36:27,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 10:36:27,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 10:36:27,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 10:36:27,223 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 10:36:27,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 10:36:27,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 10:36:27,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 10:36:27,225 INFO L87 Difference]: Start difference. First operand 44 states and 62 transitions. Second operand 5 states. [2018-11-07 10:36:27,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 10:36:27,700 INFO L93 Difference]: Finished difference Result 50 states and 67 transitions. [2018-11-07 10:36:27,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-07 10:36:27,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-07 10:36:27,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 10:36:27,703 INFO L225 Difference]: With dead ends: 50 [2018-11-07 10:36:27,703 INFO L226 Difference]: Without dead ends: 48 [2018-11-07 10:36:27,705 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 10:36:27,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-07 10:36:27,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-11-07 10:36:27,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-07 10:36:27,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2018-11-07 10:36:27,718 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 14 [2018-11-07 10:36:27,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 10:36:27,719 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2018-11-07 10:36:27,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 10:36:27,719 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2018-11-07 10:36:27,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-07 10:36:27,720 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 10:36:27,720 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 10:36:27,721 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 10:36:27,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 10:36:27,721 INFO L82 PathProgramCache]: Analyzing trace with hash 840682065, now seen corresponding path program 1 times [2018-11-07 10:36:27,721 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 10:36:27,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:36:27,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 10:36:27,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:36:27,723 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 10:36:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 10:36:27,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 10:36:27,908 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 10:36:27,908 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 10:36:27,909 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-11-07 10:36:27,911 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [15], [21], [24], [98], [101], [103], [106], [108], [109], [110], [111], [113], [114], [115] [2018-11-07 10:36:27,948 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 10:36:27,948 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 10:36:28,071 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 10:36:28,073 INFO L272 AbstractInterpreter]: Visited 18 different actions 23 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-11-07 10:36:28,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 10:36:28,088 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 10:36:28,088 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 10:36:28,088 INFO L194 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 [2018-11-07 10:36:28,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 10:36:28,100 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 10:36:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 10:36:28,135 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 10:36:28,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 10:36:28,216 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 10:36:28,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 10:36:28,382 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 10:36:28,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [8] total 10 [2018-11-07 10:36:28,382 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 10:36:28,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 10:36:28,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 10:36:28,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-07 10:36:28,384 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand 5 states. [2018-11-07 10:36:28,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 10:36:28,499 INFO L93 Difference]: Finished difference Result 54 states and 70 transitions. [2018-11-07 10:36:28,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-07 10:36:28,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-11-07 10:36:28,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 10:36:28,501 INFO L225 Difference]: With dead ends: 54 [2018-11-07 10:36:28,501 INFO L226 Difference]: Without dead ends: 42 [2018-11-07 10:36:28,502 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-11-07 10:36:28,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-07 10:36:28,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-07 10:36:28,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-07 10:36:28,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2018-11-07 10:36:28,510 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 19 [2018-11-07 10:36:28,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 10:36:28,511 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2018-11-07 10:36:28,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 10:36:28,511 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2018-11-07 10:36:28,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-07 10:36:28,512 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 10:36:28,512 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 10:36:28,512 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 10:36:28,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 10:36:28,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1546781750, now seen corresponding path program 1 times [2018-11-07 10:36:28,513 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 10:36:28,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:36:28,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 10:36:28,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:36:28,515 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 10:36:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 10:36:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 10:36:28,632 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 10:36:28,632 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 10:36:28,632 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-11-07 10:36:28,633 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [15], [21], [28], [33], [98], [101], [103], [106], [108], [109], [110], [111], [117], [118], [119] [2018-11-07 10:36:28,635 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 10:36:28,635 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 10:36:28,657 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 10:36:28,657 INFO L272 AbstractInterpreter]: Visited 19 different actions 24 times. Never merged. Never widened. Never found a fixpoint. Largest state had 5 variables. [2018-11-07 10:36:28,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 10:36:28,664 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 10:36:28,664 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 10:36:28,665 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 10:36:28,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 10:36:28,675 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 10:36:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 10:36:28,691 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 10:36:29,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 10:36:29,134 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 10:36:29,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 10:36:29,304 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 10:36:29,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2018-11-07 10:36:29,305 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 10:36:29,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 10:36:29,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 10:36:29,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-11-07 10:36:29,306 INFO L87 Difference]: Start difference. First operand 42 states and 53 transitions. Second operand 11 states. [2018-11-07 10:36:30,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 10:36:30,017 INFO L93 Difference]: Finished difference Result 86 states and 113 transitions. [2018-11-07 10:36:30,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-07 10:36:30,019 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2018-11-07 10:36:30,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 10:36:30,022 INFO L225 Difference]: With dead ends: 86 [2018-11-07 10:36:30,022 INFO L226 Difference]: Without dead ends: 82 [2018-11-07 10:36:30,023 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2018-11-07 10:36:30,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-11-07 10:36:30,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2018-11-07 10:36:30,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-11-07 10:36:30,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 103 transitions. [2018-11-07 10:36:30,041 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 103 transitions. Word has length 20 [2018-11-07 10:36:30,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 10:36:30,041 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 103 transitions. [2018-11-07 10:36:30,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 10:36:30,041 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 103 transitions. [2018-11-07 10:36:30,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-07 10:36:30,044 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 10:36:30,044 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 10:36:30,044 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 10:36:30,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 10:36:30,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1112674801, now seen corresponding path program 1 times [2018-11-07 10:36:30,045 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 10:36:30,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:36:30,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 10:36:30,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:36:30,046 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 10:36:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 10:36:30,227 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 14 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-07 10:36:30,228 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 10:36:30,228 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 10:36:30,228 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2018-11-07 10:36:30,228 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [15], [21], [28], [31], [42], [46], [52], [59], [62], [65], [68], [75], [98], [101], [103], [106], [108], [109], [110], [111], [121], [122], [123], [124], [129], [130], [131], [132], [137], [138], [139] [2018-11-07 10:36:30,231 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 10:36:30,231 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 10:36:30,278 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 10:36:30,279 INFO L272 AbstractInterpreter]: Visited 35 different actions 60 times. Never merged. Never widened. Never found a fixpoint. Largest state had 9 variables. [2018-11-07 10:36:30,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 10:36:30,292 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 10:36:30,292 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 10:36:30,292 INFO L194 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 [2018-11-07 10:36:30,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 10:36:30,304 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 10:36:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 10:36:30,341 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 10:36:30,428 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 14 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-07 10:36:30,428 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 10:36:30,582 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-11-07 10:36:30,602 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 10:36:30,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 8] total 12 [2018-11-07 10:36:30,602 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 10:36:30,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 10:36:30,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 10:36:30,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-11-07 10:36:30,604 INFO L87 Difference]: Start difference. First operand 78 states and 103 transitions. Second operand 11 states. [2018-11-07 10:36:31,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 10:36:31,051 INFO L93 Difference]: Finished difference Result 82 states and 106 transitions. [2018-11-07 10:36:31,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 10:36:31,052 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2018-11-07 10:36:31,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 10:36:31,053 INFO L225 Difference]: With dead ends: 82 [2018-11-07 10:36:31,053 INFO L226 Difference]: Without dead ends: 0 [2018-11-07 10:36:31,055 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 95 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2018-11-07 10:36:31,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-07 10:36:31,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-07 10:36:31,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-07 10:36:31,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-07 10:36:31,057 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2018-11-07 10:36:31,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 10:36:31,057 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-07 10:36:31,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 10:36:31,057 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-07 10:36:31,058 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-07 10:36:31,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-07 10:36:31,411 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-07 10:36:31,411 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-07 10:36:31,411 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-07 10:36:31,411 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-07 10:36:31,411 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-07 10:36:31,411 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-07 10:36:31,412 INFO L421 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,412 INFO L428 ceAbstractionStarter]: At program point L60(lines 11 63) the Hoare annotation is: true [2018-11-07 10:36:31,412 INFO L421 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,412 INFO L421 ceAbstractionStarter]: At program point L27-1(line 27) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,412 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 63) no Hoare annotation was computed. [2018-11-07 10:36:31,412 INFO L425 ceAbstractionStarter]: For program point L56(line 56) no Hoare annotation was computed. [2018-11-07 10:36:31,413 INFO L425 ceAbstractionStarter]: For program point L52(lines 52 54) no Hoare annotation was computed. [2018-11-07 10:36:31,413 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2018-11-07 10:36:31,413 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-07 10:36:31,413 INFO L425 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-11-07 10:36:31,413 INFO L425 ceAbstractionStarter]: For program point L40(lines 40 54) no Hoare annotation was computed. [2018-11-07 10:36:31,413 INFO L421 ceAbstractionStarter]: At program point L40-1(lines 40 54) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,414 INFO L421 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,414 INFO L421 ceAbstractionStarter]: At program point L36-1(line 36) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,414 INFO L425 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-11-07 10:36:31,414 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-07 10:36:31,414 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2018-11-07 10:36:31,414 INFO L421 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,415 INFO L421 ceAbstractionStarter]: At program point L20-1(line 20) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,415 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 49) no Hoare annotation was computed. [2018-11-07 10:36:31,415 INFO L425 ceAbstractionStarter]: For program point L41(lines 41 50) no Hoare annotation was computed. [2018-11-07 10:36:31,415 INFO L421 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,415 INFO L421 ceAbstractionStarter]: At program point L46-1(line 46) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,415 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 63) no Hoare annotation was computed. [2018-11-07 10:36:31,415 INFO L421 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,415 INFO L421 ceAbstractionStarter]: At program point L42-1(line 42) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,415 INFO L425 ceAbstractionStarter]: For program point L34-1(lines 34 58) no Hoare annotation was computed. [2018-11-07 10:36:31,416 INFO L421 ceAbstractionStarter]: At program point L34-3(lines 34 58) the Hoare annotation is: (and (<= 1 main_~tagbuf_len~0) (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,416 INFO L421 ceAbstractionStarter]: At program point L34-4(lines 34 58) the Hoare annotation is: (and (<= 1 main_~tagbuf_len~0) (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,416 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 63) the Hoare annotation is: true [2018-11-07 10:36:31,416 INFO L421 ceAbstractionStarter]: At program point L59(line 59) the Hoare annotation is: (and (<= 1 main_~tagbuf_len~0) (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,416 INFO L421 ceAbstractionStarter]: At program point L55(line 55) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,416 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 30) no Hoare annotation was computed. [2018-11-07 10:36:31,417 INFO L421 ceAbstractionStarter]: At program point L18-3(lines 18 30) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,417 INFO L421 ceAbstractionStarter]: At program point L18-4(lines 18 30) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-11-07 10:36:31,417 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-07 10:36:31,417 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2018-11-07 10:36:31,417 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-07 10:36:31,417 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-07 10:36:31,418 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-07 10:36:31,418 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-07 10:36:31,418 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-07 10:36:31,418 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-07 10:36:31,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 10:36:31 BoogieIcfgContainer [2018-11-07 10:36:31,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 10:36:31,433 INFO L168 Benchmark]: Toolchain (without parser) took 5670.55 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.0 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -476.6 MB). Peak memory consumption was 278.4 MB. Max. memory is 7.1 GB. [2018-11-07 10:36:31,435 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. [2018-11-07 10:36:31,436 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.78 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. [2018-11-07 10:36:31,436 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.39 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. [2018-11-07 10:36:31,437 INFO L168 Benchmark]: Boogie Preprocessor took 52.76 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. [2018-11-07 10:36:31,438 INFO L168 Benchmark]: RCFGBuilder took 661.01 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-11-07 10:36:31,439 INFO L168 Benchmark]: TraceAbstraction took 4655.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 302.0 MB). Peak memory consumption was 302.0 MB. Max. memory is 7.1 GB. [2018-11-07 10:36:31,444 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 271.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 25.39 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 52.76 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 661.01 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4655.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 302.0 MB). Peak memory consumption was 302.0 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: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: t <= tagbuf_len && 0 <= t - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (1 <= tagbuf_len && t <= tagbuf_len) && 0 <= t - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 49 locations, 1 error locations. SAFE Result, 4.5s OverallTime, 5 OverallIterations, 6 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 246 SDtfs, 130 SDslu, 618 SDs, 0 SdLazy, 486 SolverSat, 146 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 169 SyntacticMatches, 11 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 69 PreInvPairs, 103 NumberOfFragments, 157 HoareAnnotationTreeSize, 69 FomulaSimplifications, 124 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 24 FomulaSimplificationsInter, 124 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 276 ConstructedInterpolants, 0 QuantifiedInterpolants, 19734 SizeOfPredicates, 10 NumberOfNonLiveVariables, 178 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 126/162 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...