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-acceleration/simple_4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-0883e75 [2019-09-05 11:50:35,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-05 11:50:35,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-05 11:50:35,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-05 11:50:35,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-05 11:50:35,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-05 11:50:35,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-05 11:50:35,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-05 11:50:35,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-05 11:50:35,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-05 11:50:35,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-05 11:50:35,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-05 11:50:35,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-05 11:50:35,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-05 11:50:35,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-05 11:50:35,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-05 11:50:35,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-05 11:50:35,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-05 11:50:35,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-05 11:50:35,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-05 11:50:35,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-05 11:50:35,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-05 11:50:35,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-05 11:50:35,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-05 11:50:35,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-05 11:50:35,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-05 11:50:35,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-05 11:50:35,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-05 11:50:35,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-05 11:50:35,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-05 11:50:35,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-05 11:50:35,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-05 11:50:35,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-05 11:50:35,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-05 11:50:35,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-05 11:50:35,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-05 11:50:35,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-05 11:50:35,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-05 11:50:35,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-05 11:50:35,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-05 11:50:35,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-05 11:50:35,325 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 11:50:35,359 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-05 11:50:35,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-05 11:50:35,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-05 11:50:35,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-05 11:50:35,361 INFO L138 SettingsManager]: * Use SBE=true [2019-09-05 11:50:35,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-05 11:50:35,361 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-05 11:50:35,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-05 11:50:35,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-05 11:50:35,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-05 11:50:35,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-05 11:50:35,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-05 11:50:35,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-05 11:50:35,365 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-05 11:50:35,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-05 11:50:35,365 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-05 11:50:35,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-05 11:50:35,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-05 11:50:35,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-05 11:50:35,366 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-05 11:50:35,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-05 11:50:35,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-05 11:50:35,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-05 11:50:35,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-05 11:50:35,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-05 11:50:35,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-05 11:50:35,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-05 11:50:35,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-05 11:50:35,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-05 11:50:35,394 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-05 11:50:35,405 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-05 11:50:35,408 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-05 11:50:35,410 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-05 11:50:35,410 INFO L275 PluginConnector]: CDTParser initialized [2019-09-05 11:50:35,411 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_4-2.c [2019-09-05 11:50:35,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3292b8573/1230a195e54f4eb081728fab82311caf/FLAG0f798d8fa [2019-09-05 11:50:35,873 INFO L306 CDTParser]: Found 1 translation units. [2019-09-05 11:50:35,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_4-2.c [2019-09-05 11:50:35,879 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3292b8573/1230a195e54f4eb081728fab82311caf/FLAG0f798d8fa [2019-09-05 11:50:36,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3292b8573/1230a195e54f4eb081728fab82311caf [2019-09-05 11:50:36,290 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-05 11:50:36,292 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-05 11:50:36,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-05 11:50:36,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-05 11:50:36,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-05 11:50:36,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 11:50:36" (1/1) ... [2019-09-05 11:50:36,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25d452d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:50:36, skipping insertion in model container [2019-09-05 11:50:36,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 11:50:36" (1/1) ... [2019-09-05 11:50:36,309 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-05 11:50:36,324 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-05 11:50:36,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 11:50:36,480 INFO L188 MainTranslator]: Completed pre-run [2019-09-05 11:50:36,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 11:50:36,503 INFO L192 MainTranslator]: Completed translation [2019-09-05 11:50:36,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:50:36 WrapperNode [2019-09-05 11:50:36,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-05 11:50:36,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-05 11:50:36,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-05 11:50:36,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-05 11:50:36,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:50:36" (1/1) ... [2019-09-05 11:50:36,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:50:36" (1/1) ... [2019-09-05 11:50:36,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:50:36" (1/1) ... [2019-09-05 11:50:36,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:50:36" (1/1) ... [2019-09-05 11:50:36,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:50:36" (1/1) ... [2019-09-05 11:50:36,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:50:36" (1/1) ... [2019-09-05 11:50:36,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:50:36" (1/1) ... [2019-09-05 11:50:36,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-05 11:50:36,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-05 11:50:36,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-05 11:50:36,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-05 11:50:36,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:50:36" (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 11:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-05 11:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-05 11:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-05 11:50:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-05 11:50:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-05 11:50:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-05 11:50:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-05 11:50:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-05 11:50:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-05 11:50:36,811 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-05 11:50:36,811 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-05 11:50:36,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 11:50:36 BoogieIcfgContainer [2019-09-05 11:50:36,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-05 11:50:36,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-05 11:50:36,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-05 11:50:36,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-05 11:50:36,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.09 11:50:36" (1/3) ... [2019-09-05 11:50:36,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b989f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.09 11:50:36, skipping insertion in model container [2019-09-05 11:50:36,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:50:36" (2/3) ... [2019-09-05 11:50:36,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b989f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.09 11:50:36, skipping insertion in model container [2019-09-05 11:50:36,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 11:50:36" (3/3) ... [2019-09-05 11:50:36,820 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_4-2.c [2019-09-05 11:50:36,829 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-05 11:50:36,836 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-05 11:50:36,852 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-05 11:50:36,880 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-05 11:50:36,881 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-05 11:50:36,881 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-05 11:50:36,881 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-05 11:50:36,882 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-05 11:50:36,882 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-05 11:50:36,882 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-05 11:50:36,882 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-05 11:50:36,882 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-05 11:50:36,903 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-09-05 11:50:36,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-05 11:50:36,908 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 11:50:36,909 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 11:50:36,911 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 11:50:36,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 11:50:36,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1846144830, now seen corresponding path program 1 times [2019-09-05 11:50:36,917 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-05 11:50:36,917 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-05 11:50:36,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 11:50:36,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 11:50:36,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 11:50:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 11:50:37,098 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 11:50:37,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-05 11:50:37,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-05 11:50:37,105 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-05 11:50:37,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-05 11:50:37,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-05 11:50:37,122 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2019-09-05 11:50:37,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 11:50:37,178 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-09-05 11:50:37,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-05 11:50:37,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-09-05 11:50:37,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 11:50:37,194 INFO L225 Difference]: With dead ends: 29 [2019-09-05 11:50:37,194 INFO L226 Difference]: Without dead ends: 12 [2019-09-05 11:50:37,197 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-05 11:50:37,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-09-05 11:50:37,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-09-05 11:50:37,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-09-05 11:50:37,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-09-05 11:50:37,276 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-09-05 11:50:37,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 11:50:37,276 INFO L475 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-09-05 11:50:37,276 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-05 11:50:37,277 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-09-05 11:50:37,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-05 11:50:37,278 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 11:50:37,278 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 11:50:37,278 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 11:50:37,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 11:50:37,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1432376145, now seen corresponding path program 1 times [2019-09-05 11:50:37,279 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-05 11:50:37,279 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-05 11:50:37,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 11:50:37,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 11:50:37,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 11:50:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 11:50:37,412 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 11:50:37,412 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-05 11:50:37,412 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 11:50:37,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 11:50:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 11:50:37,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2019-09-05 11:50:37,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-05 11:50:37,517 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 11:50:37,524 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-05 11:50:37,524 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-09-05 11:50:37,525 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-05 11:50:37,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-05 11:50:37,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-05 11:50:37,526 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2019-09-05 11:50:37,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 11:50:37,555 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-09-05 11:50:37,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-05 11:50:37,556 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-09-05 11:50:37,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 11:50:37,557 INFO L225 Difference]: With dead ends: 18 [2019-09-05 11:50:37,557 INFO L226 Difference]: Without dead ends: 13 [2019-09-05 11:50:37,558 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-05 11:50:37,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-09-05 11:50:37,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-09-05 11:50:37,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-09-05 11:50:37,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-09-05 11:50:37,563 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2019-09-05 11:50:37,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 11:50:37,564 INFO L475 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-09-05 11:50:37,564 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-05 11:50:37,564 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-09-05 11:50:37,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-05 11:50:37,565 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 11:50:37,565 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 11:50:37,566 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 11:50:37,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 11:50:37,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1490448798, now seen corresponding path program 2 times [2019-09-05 11:50:37,566 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-05 11:50:37,567 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-05 11:50:37,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 11:50:37,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 11:50:37,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 11:50:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 11:50:37,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-05 11:50:37,689 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-05 11:50:37,690 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-05 11:50:37,706 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-05 11:50:37,718 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-09-05 11:50:37,719 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-05 11:50:37,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-05 11:50:37,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-05 11:50:37,736 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-05 11:50:37,739 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-05 11:50:37,740 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-05 11:50:37,744 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-05 11:50:37,748 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-05 11:50:37,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-05 11:50:37,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-05 11:50:37,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2019-09-05 11:50:37,776 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-05 11:50:37,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-05 11:50:37,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-05 11:50:37,777 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 8 states. [2019-09-05 11:50:37,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 11:50:37,843 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2019-09-05 11:50:37,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-05 11:50:37,843 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-09-05 11:50:37,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 11:50:37,844 INFO L225 Difference]: With dead ends: 17 [2019-09-05 11:50:37,844 INFO L226 Difference]: Without dead ends: 0 [2019-09-05 11:50:37,845 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-09-05 11:50:37,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-05 11:50:37,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-05 11:50:37,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-05 11:50:37,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-05 11:50:37,846 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-09-05 11:50:37,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 11:50:37,847 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-05 11:50:37,847 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-05 11:50:37,847 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-05 11:50:37,847 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-05 11:50:37,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-05 11:50:37,896 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-05 11:50:37,897 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-05 11:50:37,897 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-05 11:50:37,897 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-05 11:50:37,897 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-05 11:50:37,897 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-05 11:50:37,897 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 18) the Hoare annotation is: true [2019-09-05 11:50:37,897 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 18) no Hoare annotation was computed. [2019-09-05 11:50:37,898 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 18) no Hoare annotation was computed. [2019-09-05 11:50:37,898 INFO L446 ceAbstractionStarter]: At program point L13-2(lines 13 15) the Hoare annotation is: true [2019-09-05 11:50:37,898 INFO L439 ceAbstractionStarter]: At program point L13-3(lines 13 15) the Hoare annotation is: (<= (mod main_~x~0 4294967296) 0) [2019-09-05 11:50:37,899 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-09-05 11:50:37,899 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-09-05 11:50:37,899 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-09-05 11:50:37,899 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-09-05 11:50:37,899 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-09-05 11:50:37,900 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-09-05 11:50:37,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.09 11:50:37 BoogieIcfgContainer [2019-09-05 11:50:37,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-05 11:50:37,914 INFO L168 Benchmark]: Toolchain (without parser) took 1621.20 ms. Allocated memory was 141.0 MB in the beginning and 200.3 MB in the end (delta: 59.2 MB). Free memory was 88.0 MB in the beginning and 106.6 MB in the end (delta: -18.6 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. [2019-09-05 11:50:37,917 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 105.8 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-05 11:50:37,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.85 ms. Allocated memory is still 141.0 MB. Free memory was 87.8 MB in the beginning and 78.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-09-05 11:50:37,921 INFO L168 Benchmark]: Boogie Preprocessor took 112.07 ms. Allocated memory was 141.0 MB in the beginning and 200.3 MB in the end (delta: 59.2 MB). Free memory was 78.3 MB in the beginning and 178.3 MB in the end (delta: -100.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-09-05 11:50:37,922 INFO L168 Benchmark]: RCFGBuilder took 195.59 ms. Allocated memory is still 200.3 MB. Free memory was 178.3 MB in the beginning and 168.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-09-05 11:50:37,924 INFO L168 Benchmark]: TraceAbstraction took 1097.71 ms. Allocated memory is still 200.3 MB. Free memory was 167.8 MB in the beginning and 106.6 MB in the end (delta: 61.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2019-09-05 11:50:37,934 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 105.8 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 211.85 ms. Allocated memory is still 141.0 MB. Free memory was 87.8 MB in the beginning and 78.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.07 ms. Allocated memory was 141.0 MB in the beginning and 200.3 MB in the end (delta: 59.2 MB). Free memory was 78.3 MB in the beginning and 178.3 MB in the end (delta: -100.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 195.59 ms. Allocated memory is still 200.3 MB. Free memory was 178.3 MB in the beginning and 168.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1097.71 ms. Allocated memory is still 200.3 MB. Free memory was 167.8 MB in the beginning and 106.6 MB in the end (delta: 61.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 33 SDtfs, 1 SDslu, 63 SDs, 0 SdLazy, 33 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s 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, 7 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 11 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 56 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 1163 SizeOfPredicates, 3 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 3/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...