java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-0883e75 [2019-09-05 12:03:41,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-05 12:03:41,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-05 12:03:41,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-05 12:03:41,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-05 12:03:41,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-05 12:03:41,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-05 12:03:41,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-05 12:03:41,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-05 12:03:41,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-05 12:03:41,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-05 12:03:41,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-05 12:03:41,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-05 12:03:41,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-05 12:03:41,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-05 12:03:41,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-05 12:03:41,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-05 12:03:41,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-05 12:03:41,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-05 12:03:41,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-05 12:03:41,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-05 12:03:41,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-05 12:03:41,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-05 12:03:41,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-05 12:03:41,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-05 12:03:41,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-05 12:03:41,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-05 12:03:41,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-05 12:03:41,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-05 12:03:41,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-05 12:03:41,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-05 12:03:41,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-05 12:03:41,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-05 12:03:41,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-05 12:03:41,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-05 12:03:41,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-05 12:03:41,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-05 12:03:41,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-05 12:03:41,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-05 12:03:41,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-05 12:03:41,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-05 12:03:41,101 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-05 12:03:41,122 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-05 12:03:41,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-05 12:03:41,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-05 12:03:41,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-05 12:03:41,124 INFO L138 SettingsManager]: * Use SBE=true [2019-09-05 12:03:41,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-05 12:03:41,125 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-05 12:03:41,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-05 12:03:41,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-05 12:03:41,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-05 12:03:41,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-05 12:03:41,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-05 12:03:41,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-05 12:03:41,126 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-05 12:03:41,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-05 12:03:41,127 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-05 12:03:41,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-05 12:03:41,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-05 12:03:41,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-05 12:03:41,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-05 12:03:41,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-05 12:03:41,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-05 12:03:41,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-05 12:03:41,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-05 12:03:41,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-05 12:03:41,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-05 12:03:41,129 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-05 12:03:41,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-05 12:03:41,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-05 12:03:41,165 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-05 12:03:41,180 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-05 12:03:41,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-05 12:03:41,186 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-05 12:03:41,186 INFO L275 PluginConnector]: CDTParser initialized [2019-09-05 12:03:41,187 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2019-09-05 12:03:41,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4551482e/635d370d0c5e483dbca92e206bfadf96/FLAGc44fc9d6b [2019-09-05 12:03:41,741 INFO L306 CDTParser]: Found 1 translation units. [2019-09-05 12:03:41,742 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2019-09-05 12:03:41,750 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4551482e/635d370d0c5e483dbca92e206bfadf96/FLAGc44fc9d6b [2019-09-05 12:03:42,065 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4551482e/635d370d0c5e483dbca92e206bfadf96 [2019-09-05 12:03:42,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-05 12:03:42,075 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-05 12:03:42,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-05 12:03:42,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-05 12:03:42,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-05 12:03:42,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 12:03:42" (1/1) ... [2019-09-05 12:03:42,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4563953f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:42, skipping insertion in model container [2019-09-05 12:03:42,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 12:03:42" (1/1) ... [2019-09-05 12:03:42,091 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-05 12:03:42,109 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-05 12:03:42,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 12:03:42,259 INFO L188 MainTranslator]: Completed pre-run [2019-09-05 12:03:42,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 12:03:42,286 INFO L192 MainTranslator]: Completed translation [2019-09-05 12:03:42,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:42 WrapperNode [2019-09-05 12:03:42,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-05 12:03:42,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-05 12:03:42,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-05 12:03:42,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-05 12:03:42,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:42" (1/1) ... [2019-09-05 12:03:42,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:42" (1/1) ... [2019-09-05 12:03:42,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:42" (1/1) ... [2019-09-05 12:03:42,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:42" (1/1) ... [2019-09-05 12:03:42,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:42" (1/1) ... [2019-09-05 12:03:42,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:42" (1/1) ... [2019-09-05 12:03:42,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:42" (1/1) ... [2019-09-05 12:03:42,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-05 12:03:42,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-05 12:03:42,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-05 12:03:42,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-05 12:03:42,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:42" (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 [2019-09-05 12:03:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-05 12:03:42,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-05 12:03:42,465 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-05 12:03:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-05 12:03:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-05 12:03:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-05 12:03:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-05 12:03:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-05 12:03:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-05 12:03:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-05 12:03:42,613 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-05 12:03:42,613 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-05 12:03:42,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 12:03:42 BoogieIcfgContainer [2019-09-05 12:03:42,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-05 12:03:42,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-05 12:03:42,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-05 12:03:42,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-05 12:03:42,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.09 12:03:42" (1/3) ... [2019-09-05 12:03:42,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8e8f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.09 12:03:42, skipping insertion in model container [2019-09-05 12:03:42,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:42" (2/3) ... [2019-09-05 12:03:42,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8e8f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.09 12:03:42, skipping insertion in model container [2019-09-05 12:03:42,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 12:03:42" (3/3) ... [2019-09-05 12:03:42,623 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2019-09-05 12:03:42,633 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-05 12:03:42,641 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-05 12:03:42,665 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-05 12:03:42,698 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-05 12:03:42,699 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-05 12:03:42,699 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-05 12:03:42,699 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-05 12:03:42,699 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-05 12:03:42,700 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-05 12:03:42,700 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-05 12:03:42,700 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-05 12:03:42,700 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-05 12:03:42,720 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-09-05 12:03:42,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-05 12:03:42,726 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 12:03:42,727 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 12:03:42,730 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 12:03:42,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 12:03:42,737 INFO L82 PathProgramCache]: Analyzing trace with hash -696314067, now seen corresponding path program 1 times [2019-09-05 12:03:42,739 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-05 12:03:42,739 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-05 12:03:42,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:03:42,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 12:03:42,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:03:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 12:03:42,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-05 12:03:42,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-05 12:03:42,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-05 12:03:43,000 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-05 12:03:43,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-05 12:03:43,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-05 12:03:43,014 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2019-09-05 12:03:43,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 12:03:43,255 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2019-09-05 12:03:43,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-05 12:03:43,258 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-09-05 12:03:43,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 12:03:43,272 INFO L225 Difference]: With dead ends: 34 [2019-09-05 12:03:43,272 INFO L226 Difference]: Without dead ends: 14 [2019-09-05 12:03:43,278 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-09-05 12:03:43,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-09-05 12:03:43,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-09-05 12:03:43,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-09-05 12:03:43,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-09-05 12:03:43,326 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2019-09-05 12:03:43,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 12:03:43,327 INFO L475 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-09-05 12:03:43,327 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-05 12:03:43,327 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-09-05 12:03:43,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-05 12:03:43,328 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 12:03:43,329 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 12:03:43,330 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 12:03:43,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 12:03:43,331 INFO L82 PathProgramCache]: Analyzing trace with hash -112838900, now seen corresponding path program 1 times [2019-09-05 12:03:43,332 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-05 12:03:43,334 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-05 12:03:43,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:03:43,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 12:03:43,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:03:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 12:03:43,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-05 12:03:43,511 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-05 12:03:43,511 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2019-09-05 12:03:43,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 12:03:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 12:03:43,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 18 conjunts are in the unsatisfiable core [2019-09-05 12:03:43,559 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-05 12:03:43,641 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-05 12:03:43,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-05 12:03:43,678 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-05 12:03:43,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-09-05 12:03:43,679 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-05 12:03:43,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-05 12:03:43,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-09-05 12:03:43,680 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 9 states. [2019-09-05 12:03:43,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 12:03:43,854 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2019-09-05 12:03:43,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-05 12:03:43,855 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2019-09-05 12:03:43,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 12:03:43,856 INFO L225 Difference]: With dead ends: 22 [2019-09-05 12:03:43,856 INFO L226 Difference]: Without dead ends: 16 [2019-09-05 12:03:43,858 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-09-05 12:03:43,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-09-05 12:03:43,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-09-05 12:03:43,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-09-05 12:03:43,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-09-05 12:03:43,866 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2019-09-05 12:03:43,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 12:03:43,866 INFO L475 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-09-05 12:03:43,866 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-05 12:03:43,867 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-09-05 12:03:43,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-05 12:03:43,867 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 12:03:43,868 INFO L399 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 12:03:43,868 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 12:03:43,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 12:03:43,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1126058196, now seen corresponding path program 2 times [2019-09-05 12:03:43,869 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-05 12:03:43,869 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-05 12:03:43,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:03:43,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 12:03:43,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:03:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 12:03:44,126 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-05 12:03:44,127 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-05 12:03:44,127 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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) [2019-09-05 12:03:44,149 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-05 12:03:44,168 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-05 12:03:44,169 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-05 12:03:44,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 27 conjunts are in the unsatisfiable core [2019-09-05 12:03:44,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-05 12:03:44,320 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-05 12:03:44,325 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-05 12:03:44,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2019-09-05 12:03:44,327 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-05 12:03:44,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-05 12:03:44,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-09-05 12:03:44,328 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 14 states. [2019-09-05 12:03:44,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 12:03:44,795 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-09-05 12:03:44,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-05 12:03:44,796 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2019-09-05 12:03:44,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 12:03:44,796 INFO L225 Difference]: With dead ends: 19 [2019-09-05 12:03:44,796 INFO L226 Difference]: Without dead ends: 0 [2019-09-05 12:03:44,798 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2019-09-05 12:03:44,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-05 12:03:44,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-05 12:03:44,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-05 12:03:44,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-05 12:03:44,799 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-09-05 12:03:44,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 12:03:44,799 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-05 12:03:44,800 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-05 12:03:44,800 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-05 12:03:44,800 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-05 12:03:44,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-05 12:03:44,983 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-09-05 12:03:44,983 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-09-05 12:03:44,984 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-05 12:03:44,984 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-05 12:03:44,984 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= 0 ~__return_72~0) (<= ~__return_72~0 0)) [2019-09-05 12:03:44,985 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-05 12:03:44,985 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-05 12:03:44,986 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 8 65) the Hoare annotation is: (or (not (<= |old(~__return_72~0)| 0)) (not (<= 0 |old(~__return_72~0)|)) (and (<= 0 ~__return_72~0) (<= ~__return_72~0 0))) [2019-09-05 12:03:44,986 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 8 65) no Hoare annotation was computed. [2019-09-05 12:03:44,986 INFO L443 ceAbstractionStarter]: For program point L20(lines 20 63) no Hoare annotation was computed. [2019-09-05 12:03:44,987 INFO L443 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2019-09-05 12:03:44,987 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 64) no Hoare annotation was computed. [2019-09-05 12:03:44,987 INFO L443 ceAbstractionStarter]: For program point L46(lines 46 55) no Hoare annotation was computed. [2019-09-05 12:03:44,988 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2019-09-05 12:03:44,988 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 8 65) no Hoare annotation was computed. [2019-09-05 12:03:44,988 INFO L443 ceAbstractionStarter]: For program point L39(lines 39 61) no Hoare annotation was computed. [2019-09-05 12:03:44,989 INFO L439 ceAbstractionStarter]: At program point L35(lines 25 63) the Hoare annotation is: (or (not (<= |old(~__return_72~0)| 0)) (not (<= 0 |old(~__return_72~0)|)) (let ((.cse0 (+ main_~main__y~0 main_~main__i~0)) (.cse1 (+ main_~main__j~0 main_~main__x~0))) (and (<= 0 main_~main__i~0) (or (<= main_~main__j~0 .cse0) (< 0 (+ main_~main__y~0 1))) (<= 0 ~__return_72~0) (< 0 (+ main_~main__x~0 1)) (or (<= .cse0 .cse1) (<= main_~main__y~0 0)) (<= ~__return_72~0 0) (or (let ((.cse2 (+ main_~main__i~0 main_~main__y~0))) (and (<= .cse1 .cse2) (<= .cse2 .cse1))) (<= main_~main__x~0 0))))) [2019-09-05 12:03:45,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.09 12:03:45 BoogieIcfgContainer [2019-09-05 12:03:45,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-05 12:03:45,024 INFO L168 Benchmark]: Toolchain (without parser) took 2945.96 ms. Allocated memory was 139.5 MB in the beginning and 223.9 MB in the end (delta: 84.4 MB). Free memory was 87.2 MB in the beginning and 80.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 91.5 MB. Max. memory is 7.1 GB. [2019-09-05 12:03:45,026 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-09-05 12:03:45,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.21 ms. Allocated memory is still 139.5 MB. Free memory was 87.0 MB in the beginning and 77.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-09-05 12:03:45,031 INFO L168 Benchmark]: Boogie Preprocessor took 119.08 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 77.4 MB in the beginning and 178.3 MB in the end (delta: -100.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-09-05 12:03:45,033 INFO L168 Benchmark]: RCFGBuilder took 207.73 ms. Allocated memory is still 200.3 MB. Free memory was 178.3 MB in the beginning and 166.7 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-09-05 12:03:45,035 INFO L168 Benchmark]: TraceAbstraction took 2404.10 ms. Allocated memory was 200.3 MB in the beginning and 223.9 MB in the end (delta: 23.6 MB). Free memory was 166.1 MB in the beginning and 80.1 MB in the end (delta: 86.0 MB). Peak memory consumption was 109.5 MB. Max. memory is 7.1 GB. [2019-09-05 12:03:45,047 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 211.21 ms. Allocated memory is still 139.5 MB. Free memory was 87.0 MB in the beginning and 77.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.08 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 77.4 MB in the beginning and 178.3 MB in the end (delta: -100.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 207.73 ms. Allocated memory is still 200.3 MB. Free memory was 178.3 MB in the beginning and 166.7 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2404.10 ms. Allocated memory was 200.3 MB in the beginning and 223.9 MB in the end (delta: 23.6 MB). Free memory was 166.1 MB in the beginning and 80.1 MB in the end (delta: 86.0 MB). Peak memory consumption was 109.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: 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: 25]: Loop Invariant Derived loop invariant: (!(\old(__return_72) <= 0) || !(0 <= \old(__return_72))) || ((((((0 <= main__i && (main__j <= main__y + main__i || 0 < main__y + 1)) && 0 <= __return_72) && 0 < main__x + 1) && (main__y + main__i <= main__j + main__x || main__y <= 0)) && __return_72 <= 0) && ((main__j + main__x <= main__i + main__y && main__i + main__y <= main__j + main__x) || main__x <= 0)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 17 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 52 SDslu, 138 SDs, 0 SdLazy, 126 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 9 NumberOfFragments, 90 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 141 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 4791 SizeOfPredicates, 12 NumberOfNonLiveVariables, 130 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/14 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...