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-crafted/simple_array_index_value_true-unreach-call4_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 10:35:55,062 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 10:35:55,064 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 10:35:55,076 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 10:35:55,076 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 10:35:55,077 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 10:35:55,078 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 10:35:55,080 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 10:35:55,082 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 10:35:55,083 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 10:35:55,084 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 10:35:55,084 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 10:35:55,085 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 10:35:55,086 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 10:35:55,087 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 10:35:55,088 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 10:35:55,089 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 10:35:55,091 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 10:35:55,093 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 10:35:55,094 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 10:35:55,095 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 10:35:55,096 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 10:35:55,099 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 10:35:55,099 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 10:35:55,099 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 10:35:55,100 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 10:35:55,103 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 10:35:55,104 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 10:35:55,107 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 10:35:55,110 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 10:35:55,110 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 10:35:55,111 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-07 10:35:55,115 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 10:35:55,147 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 10:35:55,148 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 10:35:55,148 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 10:35:55,149 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 10:35:55,150 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 10:35:55,150 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 10:35:55,150 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 10:35:55,151 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 10:35:55,151 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 10:35:55,151 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 10:35:55,151 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 10:35:55,151 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 10:35:55,151 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 10:35:55,152 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 10:35:55,153 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 10:35:55,153 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 10:35:55,153 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 10:35:55,153 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 10:35:55,153 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 10:35:55,155 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 10:35:55,155 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 10:35:55,156 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 10:35:55,156 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 10:35:55,156 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 10:35:55,156 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 10:35:55,156 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 10:35:55,156 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 10:35:55,157 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 10:35:55,157 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 10:35:55,157 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 10:35:55,157 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 10:35:55,157 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 10:35:55,158 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 10:35:55,158 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 10:35:55,158 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 10:35:55,158 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 10:35:55,212 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 10:35:55,228 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 10:35:55,233 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 10:35:55,234 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 10:35:55,235 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 10:35:55,236 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i [2018-11-07 10:35:55,305 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2ba8a694/0d92d2c2229d4802b459f7a942569dc6/FLAGf3591734f [2018-11-07 10:35:55,711 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 10:35:55,711 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i [2018-11-07 10:35:55,717 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2ba8a694/0d92d2c2229d4802b459f7a942569dc6/FLAGf3591734f [2018-11-07 10:35:55,731 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2ba8a694/0d92d2c2229d4802b459f7a942569dc6 [2018-11-07 10:35:55,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 10:35:55,743 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 10:35:55,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 10:35:55,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 10:35:55,747 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 10:35:55,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:35:55" (1/1) ... [2018-11-07 10:35:55,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a14655d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:55, skipping insertion in model container [2018-11-07 10:35:55,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:35:55" (1/1) ... [2018-11-07 10:35:55,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 10:35:55,785 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 10:35:56,002 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 10:35:56,006 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 10:35:56,029 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 10:35:56,050 INFO L193 MainTranslator]: Completed translation [2018-11-07 10:35:56,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:56 WrapperNode [2018-11-07 10:35:56,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 10:35:56,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 10:35:56,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 10:35:56,052 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 10:35:56,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:56" (1/1) ... [2018-11-07 10:35:56,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:56" (1/1) ... [2018-11-07 10:35:56,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 10:35:56,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 10:35:56,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 10:35:56,077 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 10:35:56,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:56" (1/1) ... [2018-11-07 10:35:56,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:56" (1/1) ... [2018-11-07 10:35:56,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:56" (1/1) ... [2018-11-07 10:35:56,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:56" (1/1) ... [2018-11-07 10:35:56,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:56" (1/1) ... [2018-11-07 10:35:56,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:56" (1/1) ... [2018-11-07 10:35:56,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:56" (1/1) ... [2018-11-07 10:35:56,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 10:35:56,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 10:35:56,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 10:35:56,103 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 10:35:56,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:56" (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 10:35:56,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 10:35:56,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 10:35:56,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-07 10:35:56,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 10:35:56,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 10:35:56,234 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 10:35:56,234 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 10:35:56,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-07 10:35:56,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-07 10:35:56,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-07 10:35:56,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-07 10:35:56,656 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 10:35:56,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:35:56 BoogieIcfgContainer [2018-11-07 10:35:56,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 10:35:56,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 10:35:56,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 10:35:56,662 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 10:35:56,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:35:55" (1/3) ... [2018-11-07 10:35:56,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b047662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:35:56, skipping insertion in model container [2018-11-07 10:35:56,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:35:56" (2/3) ... [2018-11-07 10:35:56,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b047662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:35:56, skipping insertion in model container [2018-11-07 10:35:56,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:35:56" (3/3) ... [2018-11-07 10:35:56,666 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_true-unreach-call4_true-termination.i [2018-11-07 10:35:56,676 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 10:35:56,684 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 10:35:56,699 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 10:35:56,734 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 10:35:56,735 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 10:35:56,735 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 10:35:56,735 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 10:35:56,735 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 10:35:56,735 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 10:35:56,735 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 10:35:56,736 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 10:35:56,755 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-11-07 10:35:56,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-07 10:35:56,762 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 10:35:56,763 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 10:35:56,765 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 10:35:56,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 10:35:56,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1232552056, now seen corresponding path program 1 times [2018-11-07 10:35:56,774 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 10:35:56,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:35:56,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 10:35:56,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:35:56,818 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 10:35:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 10:35:57,058 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 10:35:57,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 10:35:57,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 10:35:57,062 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 10:35:57,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 10:35:57,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 10:35:57,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 10:35:57,088 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 5 states. [2018-11-07 10:35:57,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 10:35:57,681 INFO L93 Difference]: Finished difference Result 78 states and 101 transitions. [2018-11-07 10:35:57,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 10:35:57,684 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-11-07 10:35:57,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 10:35:57,697 INFO L225 Difference]: With dead ends: 78 [2018-11-07 10:35:57,698 INFO L226 Difference]: Without dead ends: 43 [2018-11-07 10:35:57,702 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 10:35:57,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-07 10:35:57,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 33. [2018-11-07 10:35:57,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-07 10:35:57,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-11-07 10:35:57,761 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 13 [2018-11-07 10:35:57,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 10:35:57,762 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-11-07 10:35:57,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 10:35:57,762 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-11-07 10:35:57,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-07 10:35:57,763 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 10:35:57,763 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 10:35:57,764 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 10:35:57,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 10:35:57,764 INFO L82 PathProgramCache]: Analyzing trace with hash -814446705, now seen corresponding path program 1 times [2018-11-07 10:35:57,765 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 10:35:57,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:35:57,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 10:35:57,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:35:57,766 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 10:35:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 10:35:57,845 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 10:35:57,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 10:35:57,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 10:35:57,846 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 10:35:57,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 10:35:57,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 10:35:57,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 10:35:57,849 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 3 states. [2018-11-07 10:35:57,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 10:35:57,883 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2018-11-07 10:35:57,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 10:35:57,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-07 10:35:57,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 10:35:57,885 INFO L225 Difference]: With dead ends: 49 [2018-11-07 10:35:57,885 INFO L226 Difference]: Without dead ends: 36 [2018-11-07 10:35:57,886 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 10:35:57,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-07 10:35:57,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2018-11-07 10:35:57,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-07 10:35:57,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-11-07 10:35:57,895 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 18 [2018-11-07 10:35:57,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 10:35:57,895 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-11-07 10:35:57,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 10:35:57,895 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-11-07 10:35:57,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-07 10:35:57,896 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 10:35:57,896 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 10:35:57,897 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 10:35:57,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 10:35:57,897 INFO L82 PathProgramCache]: Analyzing trace with hash 2030890370, now seen corresponding path program 1 times [2018-11-07 10:35:57,897 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 10:35:57,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:35:57,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 10:35:57,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:35:57,899 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 10:35:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 10:35:58,291 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 10:35:58,291 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 10:35:58,292 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 10:35:58,293 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-11-07 10:35:58,295 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [6], [10], [16], [18], [19], [20], [50], [53], [55], [58], [60], [61], [62], [63], [65], [66] [2018-11-07 10:35:58,327 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 10:35:58,327 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 10:35:58,524 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 10:35:58,525 INFO L272 AbstractInterpreter]: Visited 19 different actions 31 times. Merged at 6 different actions 6 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 21 variables. [2018-11-07 10:35:58,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 10:35:58,545 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 10:35:58,546 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 10:35:58,546 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 10:35:58,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 10:35:58,565 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 10:35:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 10:35:58,638 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 10:35:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 10:35:59,094 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 10:35:59,375 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 10:35:59,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 10:35:59,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 8] total 17 [2018-11-07 10:35:59,397 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 10:35:59,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 10:35:59,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 10:35:59,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2018-11-07 10:35:59,399 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 8 states. [2018-11-07 10:36:02,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 10:36:02,078 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2018-11-07 10:36:02,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 10:36:02,078 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-11-07 10:36:02,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 10:36:02,080 INFO L225 Difference]: With dead ends: 54 [2018-11-07 10:36:02,080 INFO L226 Difference]: Without dead ends: 52 [2018-11-07 10:36:02,081 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2018-11-07 10:36:02,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-07 10:36:02,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 32. [2018-11-07 10:36:02,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-07 10:36:02,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-11-07 10:36:02,092 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 23 [2018-11-07 10:36:02,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 10:36:02,098 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-11-07 10:36:02,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 10:36:02,098 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-11-07 10:36:02,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-07 10:36:02,099 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 10:36:02,100 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 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 10:36:02,100 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 10:36:02,100 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 10:36:02,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1551069381, now seen corresponding path program 1 times [2018-11-07 10:36:02,101 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 10:36:02,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:36:02,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 10:36:02,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 10:36:02,103 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 10:36:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 10:36:02,699 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 18 [2018-11-07 10:36:03,180 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2018-11-07 10:36:03,694 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 10:36:03,695 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 10:36:03,695 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 10:36:03,695 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 29 with the following transitions: [2018-11-07 10:36:03,696 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [6], [10], [14], [16], [18], [19], [20], [26], [30], [36], [37], [38], [50], [53], [55], [58], [60], [61], [62], [63], [65], [66], [67] [2018-11-07 10:36:03,698 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 10:36:03,699 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 10:36:03,800 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 10:36:03,801 INFO L272 AbstractInterpreter]: Visited 26 different actions 45 times. Merged at 7 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 23 variables. [2018-11-07 10:36:03,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 10:36:03,839 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 10:36:03,839 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 10:36:03,839 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 10:36:03,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 10:36:03,862 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 10:36:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 10:36:03,945 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 10:36:11,785 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2018-11-07 10:36:11,791 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 10:36:11,794 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 10:36:11,797 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 10:36:11,802 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 10:36:11,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 60 [2018-11-07 10:36:11,814 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-07 10:36:11,827 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 10:36:11,847 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-07 10:36:11,847 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:75, output treesize:7 [2018-11-07 10:36:11,912 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 10:36:11,913 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 10:36:16,610 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 78 [2018-11-07 10:36:16,640 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 10:36:16,672 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 10:36:17,773 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 10:36:17,774 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 10:36:17,775 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 10:36:17,849 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 10:36:18,147 INFO L303 Elim1Store]: Index analysis took 1532 ms [2018-11-07 10:36:18,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 132 [2018-11-07 10:36:18,216 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-07 10:36:18,267 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 10:36:18,275 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-07 10:36:18,275 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:101, output treesize:29 [2018-11-07 10:36:18,408 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 10:36:18,428 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 10:36:18,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13, 11] imperfect sequences [14] total 29 [2018-11-07 10:36:18,428 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 10:36:18,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-07 10:36:18,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-07 10:36:18,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=668, Unknown=5, NotChecked=0, Total=812 [2018-11-07 10:36:18,430 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 13 states. [2018-11-07 10:36:23,569 WARN L179 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2018-11-07 10:36:35,616 WARN L179 SmtUtils]: Spent 5.24 s on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2018-11-07 10:36:38,622 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2018-11-07 10:36:45,980 WARN L179 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2018-11-07 10:36:46,222 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2018-11-07 10:36:46,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 10:36:46,344 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2018-11-07 10:36:46,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 10:36:46,345 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2018-11-07 10:36:46,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 10:36:46,345 INFO L225 Difference]: With dead ends: 48 [2018-11-07 10:36:46,347 INFO L226 Difference]: Without dead ends: 0 [2018-11-07 10:36:46,348 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 37 SyntacticMatches, 6 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 32.6s TimeCoverageRelationStatistics Valid=224, Invalid=958, Unknown=8, NotChecked=0, Total=1190 [2018-11-07 10:36:46,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-07 10:36:46,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-07 10:36:46,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-07 10:36:46,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-07 10:36:46,349 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-11-07 10:36:46,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 10:36:46,350 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-07 10:36:46,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-07 10:36:46,351 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-07 10:36:46,351 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-07 10:36:46,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-07 10:36:46,514 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2018-11-07 10:36:46,796 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2018-11-07 10:36:46,799 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-07 10:36:46,799 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-07 10:36:46,800 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-07 10:36:46,800 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-07 10:36:46,800 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-07 10:36:46,800 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-07 10:36:46,800 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-07 10:36:46,800 INFO L425 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed. [2018-11-07 10:36:46,800 INFO L425 ceAbstractionStarter]: For program point L33-1(line 33) no Hoare annotation was computed. [2018-11-07 10:36:46,800 INFO L425 ceAbstractionStarter]: For program point L31-1(lines 31 37) no Hoare annotation was computed. [2018-11-07 10:36:46,801 INFO L421 ceAbstractionStarter]: At program point L31-3(lines 31 37) the Hoare annotation is: (let ((.cse0 (= |main_~#array~0.offset| 0))) (or (and .cse0 (<= main_~index1~0 (+ (* 4294967296 (div main_~index1~0 4294967296)) 99999)) (<= main_~index2~0 (+ (* 4294967296 (div main_~index2~0 4294967296)) 99999)) (= main_~loop_entered~0 0)) (let ((.cse2 (mod (+ main_~index2~0 1) 4294967296)) (.cse1 (mod (+ main_~index1~0 4294967295) 4294967296))) (and .cse0 (< .cse1 .cse2) (< .cse2 100000) (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (= (mod (select .cse3 (+ (* 4 .cse2) |main_~#array~0.offset|)) 4294967296) (mod (select .cse3 (+ (* 4 .cse1) |main_~#array~0.offset|)) 4294967296))))))) [2018-11-07 10:36:46,801 INFO L425 ceAbstractionStarter]: For program point L31-4(lines 20 47) no Hoare annotation was computed. [2018-11-07 10:36:46,801 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 19 47) no Hoare annotation was computed. [2018-11-07 10:36:46,801 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-07 10:36:46,801 INFO L425 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-11-07 10:36:46,802 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 19 47) no Hoare annotation was computed. [2018-11-07 10:36:46,802 INFO L425 ceAbstractionStarter]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2018-11-07 10:36:46,802 INFO L421 ceAbstractionStarter]: At program point L40-3(lines 40 44) the Hoare annotation is: (let ((.cse0 (= |main_~#array~0.offset| 0))) (or (let ((.cse1 (mod main_~index2~0 4294967296))) (and .cse0 (< .cse1 100000) (< (mod main_~index1~0 4294967296) .cse1))) (let ((.cse3 (mod (+ main_~index2~0 1) 4294967296)) (.cse2 (mod (+ main_~index1~0 4294967295) 4294967296))) (and .cse0 (< .cse2 .cse3) (< .cse3 100000) (let ((.cse4 (select |#memory_int| |main_~#array~0.base|))) (= (mod (select .cse4 (+ (* 4 .cse3) |main_~#array~0.offset|)) 4294967296) (mod (select .cse4 (+ (* 4 .cse2) |main_~#array~0.offset|)) 4294967296))))))) [2018-11-07 10:36:46,802 INFO L421 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: (and (= |main_~#array~0.offset| 0) (or (and (<= main_~index2~0 (+ (* 4294967296 (div main_~index2~0 4294967296)) 99999)) (= main_~loop_entered~0 0)) (and (<= main_~index2~0 (+ (* 4294967296 (div (+ main_~index2~0 1) 4294967296)) 99998)) (exists ((v_prenex_1 Int)) (< (mod v_prenex_1 4294967296) (mod (+ main_~index2~0 1) 4294967296))))) (< (mod main_~index1~0 4294967296) (mod main_~index2~0 4294967296))) [2018-11-07 10:36:46,802 INFO L425 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2018-11-07 10:36:46,803 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 19 47) the Hoare annotation is: true [2018-11-07 10:36:46,803 INFO L425 ceAbstractionStarter]: For program point L41(line 41) no Hoare annotation was computed. [2018-11-07 10:36:46,803 INFO L425 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-11-07 10:36:46,803 INFO L421 ceAbstractionStarter]: At program point L41-2(line 41) the Hoare annotation is: (let ((.cse0 (mod (+ main_~index2~0 1) 4294967296))) (and (= |main_~#array~0.offset| 0) (< (mod main_~index2~0 4294967296) (mod main_~index1~0 4294967296)) (< (mod (+ main_~index1~0 4294967295) 4294967296) .cse0) (exists ((main_~index1~0 Int)) (let ((.cse2 (mod main_~index1~0 4294967296)) (.cse4 (mod (+ main_~index2~0 1) 4294967296)) (.cse1 (select |#memory_int| |main_~#array~0.base|)) (.cse3 (mod (+ main_~index1~0 4294967295) 4294967296))) (and (= (select .cse1 (+ (* 4 .cse2) |main_~#array~0.offset|)) |main_#t~mem7|) (< (mod main_~index2~0 4294967296) .cse2) (< .cse3 .cse4) (= (mod (select .cse1 (+ (* 4 .cse4) |main_~#array~0.offset|)) 4294967296) (mod (select .cse1 (+ (* 4 .cse3) |main_~#array~0.offset|)) 4294967296))))) (< .cse0 100000) (<= |main_#t~mem7| (+ |main_#t~mem8| (* 4294967296 (div (+ (- |main_#t~mem8|) |main_#t~mem7|) 4294967296)))))) [2018-11-07 10:36:46,803 INFO L425 ceAbstractionStarter]: For program point L39(lines 39 45) no Hoare annotation was computed. [2018-11-07 10:36:46,804 INFO L425 ceAbstractionStarter]: For program point L41-3(line 41) no Hoare annotation was computed. [2018-11-07 10:36:46,804 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2018-11-07 10:36:46,804 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2018-11-07 10:36:46,804 INFO L425 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-11-07 10:36:46,804 INFO L425 ceAbstractionStarter]: For program point L11(lines 11 13) no Hoare annotation was computed. [2018-11-07 10:36:46,804 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2018-11-07 10:36:46,805 INFO L425 ceAbstractionStarter]: For program point L11-2(lines 9 15) no Hoare annotation was computed. [2018-11-07 10:36:46,812 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-07 10:36:46,813 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-07 10:36:46,820 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-07 10:36:46,820 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-07 10:36:46,822 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-07 10:36:46,822 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-07 10:36:46,823 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-07 10:36:46,824 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-07 10:36:46,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 10:36:46 BoogieIcfgContainer [2018-11-07 10:36:46,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 10:36:46,827 INFO L168 Benchmark]: Toolchain (without parser) took 51084.75 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -373.2 MB). Peak memory consumption was 373.9 MB. Max. memory is 7.1 GB. [2018-11-07 10:36:46,828 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 10:36:46,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.19 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 10:36:46,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.06 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 10:36:46,830 INFO L168 Benchmark]: Boogie Preprocessor took 25.91 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 10:36:46,831 INFO L168 Benchmark]: RCFGBuilder took 554.48 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -792.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2018-11-07 10:36:46,832 INFO L168 Benchmark]: TraceAbstraction took 50168.04 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 409.0 MB). Peak memory consumption was 409.0 MB. Max. memory is 7.1 GB. [2018-11-07 10:36:46,837 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 307.19 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 25.06 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 25.91 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 554.48 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -792.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 50168.04 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 409.0 MB). Peak memory consumption was 409.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 31]: Loop Invariant [2018-11-07 10:36:46,846 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-07 10:36:46,846 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-07 10:36:46,847 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-07 10:36:46,847 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((array == 0 && index1 <= 4294967296 * (index1 / 4294967296) + 99999) && index2 <= 4294967296 * (index2 / 4294967296) + 99999) && loop_entered == 0) || (((array == 0 && (index1 + 4294967295) % 4294967296 < (index2 + 1) % 4294967296) && (index2 + 1) % 4294967296 < 100000) && unknown-#memory_int-unknown[array][4 * ((index2 + 1) % 4294967296) + array] % 4294967296 == unknown-#memory_int-unknown[array][4 * ((index1 + 4294967295) % 4294967296) + array] % 4294967296) - InvariantResult [Line: 40]: Loop Invariant [2018-11-07 10:36:46,848 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-07 10:36:46,849 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-07 10:36:46,850 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-07 10:36:46,850 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((array == 0 && index2 % 4294967296 < 100000) && index1 % 4294967296 < index2 % 4294967296) || (((array == 0 && (index1 + 4294967295) % 4294967296 < (index2 + 1) % 4294967296) && (index2 + 1) % 4294967296 < 100000) && unknown-#memory_int-unknown[array][4 * ((index2 + 1) % 4294967296) + array] % 4294967296 == unknown-#memory_int-unknown[array][4 * ((index1 + 4294967295) % 4294967296) + array] % 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 32 locations, 1 error locations. SAFE Result, 50.0s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 31.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 98 SDtfs, 84 SDslu, 265 SDs, 0 SdLazy, 255 SolverSat, 24 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 11.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 77 SyntacticMatches, 9 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 33.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 33 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 15 PreInvPairs, 22 NumberOfFragments, 306 HoareAnnotationTreeSize, 15 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 176 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 17.2s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 176 ConstructedInterpolants, 10 QuantifiedInterpolants, 72338 SizeOfPredicates, 17 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 23/27 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...