java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 15:51:02,459 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 15:51:02,463 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 15:51:02,483 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 15:51:02,484 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 15:51:02,485 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 15:51:02,486 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 15:51:02,488 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 15:51:02,489 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 15:51:02,490 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 15:51:02,491 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 15:51:02,492 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 15:51:02,492 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 15:51:02,493 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 15:51:02,495 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 15:51:02,496 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 15:51:02,496 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 15:51:02,498 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 15:51:02,500 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 15:51:02,502 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 15:51:02,503 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 15:51:02,504 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 15:51:02,507 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-22 15:51:02,522 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-22 15:51:02,550 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 15:51:02,550 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 15:51:02,554 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 15:51:02,554 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-22 15:51:02,555 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-22 15:51:02,555 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-22 15:51:02,555 INFO L133 SettingsManager]: * Use SBE=true [2018-10-22 15:51:02,555 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 15:51:02,556 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 15:51:02,556 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 15:51:02,556 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 15:51:02,556 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 15:51:02,556 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 15:51:02,557 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 15:51:02,558 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 15:51:02,558 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 15:51:02,558 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 15:51:02,559 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 15:51:02,559 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 15:51:02,559 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:51:02,559 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 15:51:02,559 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 15:51:02,561 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 15:51:02,561 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-22 15:51:02,561 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 15:51:02,562 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 15:51:02,562 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 15:51:02,562 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 15:51:02,633 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 15:51:02,648 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 15:51:02,652 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 15:51:02,653 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 15:51:02,654 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 15:51:02,655 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3_true-unreach-call.c [2018-10-22 15:51:02,713 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2a87e93b0/5de6adc047264147973831b7236ea75c/FLAG679063bfd [2018-10-22 15:51:03,179 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 15:51:03,180 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3_true-unreach-call.c [2018-10-22 15:51:03,188 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2a87e93b0/5de6adc047264147973831b7236ea75c/FLAG679063bfd [2018-10-22 15:51:03,211 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2a87e93b0/5de6adc047264147973831b7236ea75c [2018-10-22 15:51:03,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 15:51:03,224 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 15:51:03,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 15:51:03,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 15:51:03,229 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 15:51:03,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:51:03" (1/1) ... [2018-10-22 15:51:03,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3745e474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:51:03, skipping insertion in model container [2018-10-22 15:51:03,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:51:03" (1/1) ... [2018-10-22 15:51:03,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 15:51:03,272 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 15:51:03,461 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:51:03,464 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 15:51:03,482 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:51:03,495 INFO L193 MainTranslator]: Completed translation [2018-10-22 15:51:03,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:51:03 WrapperNode [2018-10-22 15:51:03,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 15:51:03,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 15:51:03,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 15:51:03,497 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 15:51:03,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:51:03" (1/1) ... [2018-10-22 15:51:03,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:51:03" (1/1) ... [2018-10-22 15:51:03,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 15:51:03,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 15:51:03,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 15:51:03,530 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 15:51:03,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:51:03" (1/1) ... [2018-10-22 15:51:03,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:51:03" (1/1) ... [2018-10-22 15:51:03,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:51:03" (1/1) ... [2018-10-22 15:51:03,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:51:03" (1/1) ... [2018-10-22 15:51:03,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:51:03" (1/1) ... [2018-10-22 15:51:03,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:51:03" (1/1) ... [2018-10-22 15:51:03,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:51:03" (1/1) ... [2018-10-22 15:51:03,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 15:51:03,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 15:51:03,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 15:51:03,552 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 15:51:03,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:51:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:51:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 15:51:03,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 15:51:03,921 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 15:51:03,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:51:03 BoogieIcfgContainer [2018-10-22 15:51:03,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 15:51:03,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 15:51:03,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 15:51:03,928 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 15:51:03,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 03:51:03" (1/3) ... [2018-10-22 15:51:03,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae70721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:51:03, skipping insertion in model container [2018-10-22 15:51:03,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:51:03" (2/3) ... [2018-10-22 15:51:03,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae70721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:51:03, skipping insertion in model container [2018-10-22 15:51:03,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:51:03" (3/3) ... [2018-10-22 15:51:03,932 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3_true-unreach-call.c [2018-10-22 15:51:03,948 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 15:51:03,959 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 15:51:03,989 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 15:51:04,045 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 15:51:04,046 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 15:51:04,046 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 15:51:04,046 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 15:51:04,046 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 15:51:04,046 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 15:51:04,047 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 15:51:04,047 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 15:51:04,047 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 15:51:04,060 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-10-22 15:51:04,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-22 15:51:04,066 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:51:04,067 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-10-22 15:51:04,069 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:51:04,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:51:04,076 INFO L82 PathProgramCache]: Analyzing trace with hash 890309097, now seen corresponding path program 1 times [2018-10-22 15:51:04,078 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:51:04,079 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:51:04,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:51:04,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:51:04,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:51:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:51:04,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:51:04,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:51:04,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 15:51:04,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 15:51:04,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 15:51:04,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:51:04,212 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2018-10-22 15:51:04,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:51:04,230 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2018-10-22 15:51:04,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 15:51:04,231 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-10-22 15:51:04,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:51:04,242 INFO L225 Difference]: With dead ends: 26 [2018-10-22 15:51:04,243 INFO L226 Difference]: Without dead ends: 12 [2018-10-22 15:51:04,246 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:51:04,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-10-22 15:51:04,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-10-22 15:51:04,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-10-22 15:51:04,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2018-10-22 15:51:04,281 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 15 transitions. Word has length 6 [2018-10-22 15:51:04,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:51:04,281 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-10-22 15:51:04,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 15:51:04,282 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2018-10-22 15:51:04,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-22 15:51:04,282 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:51:04,282 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:51:04,283 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:51:04,283 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:51:04,283 INFO L82 PathProgramCache]: Analyzing trace with hash 147078527, now seen corresponding path program 1 times [2018-10-22 15:51:04,283 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:51:04,284 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:51:04,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:51:04,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:51:04,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:51:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:51:04,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:51:04,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:51:04,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-22 15:51:04,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-22 15:51:04,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-22 15:51:04,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:51:04,459 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand 3 states. [2018-10-22 15:51:04,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:51:04,564 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2018-10-22 15:51:04,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-22 15:51:04,565 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-10-22 15:51:04,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:51:04,566 INFO L225 Difference]: With dead ends: 22 [2018-10-22 15:51:04,566 INFO L226 Difference]: Without dead ends: 18 [2018-10-22 15:51:04,568 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:51:04,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-10-22 15:51:04,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2018-10-22 15:51:04,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-10-22 15:51:04,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2018-10-22 15:51:04,572 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 8 [2018-10-22 15:51:04,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:51:04,573 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-10-22 15:51:04,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-22 15:51:04,573 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2018-10-22 15:51:04,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-22 15:51:04,574 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:51:04,574 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:51:04,575 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:51:04,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:51:04,575 INFO L82 PathProgramCache]: Analyzing trace with hash 330227236, now seen corresponding path program 1 times [2018-10-22 15:51:04,575 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:51:04,575 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:51:04,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:51:04,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:51:04,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:51:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:51:04,802 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:51:04,802 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:51:04,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-22 15:51:04,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-22 15:51:04,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-22 15:51:04,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-22 15:51:04,804 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand 4 states. [2018-10-22 15:51:09,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:51:09,774 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2018-10-22 15:51:09,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-22 15:51:09,775 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-10-22 15:51:09,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:51:09,778 INFO L225 Difference]: With dead ends: 36 [2018-10-22 15:51:09,778 INFO L226 Difference]: Without dead ends: 21 [2018-10-22 15:51:09,779 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:51:09,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-10-22 15:51:09,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2018-10-22 15:51:09,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-10-22 15:51:09,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2018-10-22 15:51:09,784 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 12 [2018-10-22 15:51:09,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:51:09,785 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2018-10-22 15:51:09,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-22 15:51:09,785 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-10-22 15:51:09,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-22 15:51:09,786 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:51:09,786 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:51:09,786 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:51:09,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:51:09,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1204669671, now seen corresponding path program 1 times [2018-10-22 15:51:09,787 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:51:09,787 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:51:09,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:51:09,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:51:09,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:51:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:51:10,199 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-22 15:51:10,258 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:51:10,259 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:51:10,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-22 15:51:10,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-22 15:51:10,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-22 15:51:10,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-22 15:51:10,260 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 4 states. [2018-10-22 15:51:12,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:51:12,609 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2018-10-22 15:51:12,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-22 15:51:12,611 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-10-22 15:51:12,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:51:12,611 INFO L225 Difference]: With dead ends: 39 [2018-10-22 15:51:12,611 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 15:51:12,612 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:51:12,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 15:51:12,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 15:51:12,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 15:51:12,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 15:51:12,613 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-10-22 15:51:12,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:51:12,614 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 15:51:12,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-22 15:51:12,614 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 15:51:12,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 15:51:12,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 15:51:12,658 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 15:51:12,658 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-10-22 15:51:12,658 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 26) no Hoare annotation was computed. [2018-10-22 15:51:12,659 INFO L421 ceAbstractionStarter]: At program point L23-2(lines 16 29) the Hoare annotation is: (or (let ((.cse0 (* 1431655765 ULTIMATE.start_main_~x~0))) (<= .cse0 (+ (* 4294967296 (div (+ .cse0 (- 2863311531)) 4294967296)) 4294967295))) (and (<= ULTIMATE.start_main_~y~0 1) (<= 1 ULTIMATE.start_main_~y~0))) [2018-10-22 15:51:12,659 INFO L425 ceAbstractionStarter]: For program point L17(lines 17 28) no Hoare annotation was computed. [2018-10-22 15:51:12,659 INFO L425 ceAbstractionStarter]: For program point L7(lines 7 8) no Hoare annotation was computed. [2018-10-22 15:51:12,660 INFO L428 ceAbstractionStarter]: At program point L7-2(lines 6 10) the Hoare annotation is: true [2018-10-22 15:51:12,660 INFO L428 ceAbstractionStarter]: At program point L32(lines 12 33) the Hoare annotation is: true [2018-10-22 15:51:12,660 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-22 15:51:12,660 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-22 15:51:12,660 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 30 31) no Hoare annotation was computed. [2018-10-22 15:51:12,660 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 15:51:12,661 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 27) no Hoare annotation was computed. [2018-10-22 15:51:12,661 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 29) no Hoare annotation was computed. [2018-10-22 15:51:12,661 INFO L425 ceAbstractionStarter]: For program point L16-2(lines 16 29) no Hoare annotation was computed. [2018-10-22 15:51:12,661 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 12 33) no Hoare annotation was computed. [2018-10-22 15:51:12,661 INFO L425 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-10-22 15:51:12,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 03:51:12 BoogieIcfgContainer [2018-10-22 15:51:12,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 15:51:12,675 INFO L168 Benchmark]: Toolchain (without parser) took 9452.13 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 726.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -690.8 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. [2018-10-22 15:51:12,676 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:51:12,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-22 15:51:12,678 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.04 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:51:12,679 INFO L168 Benchmark]: Boogie Preprocessor took 21.78 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:51:12,679 INFO L168 Benchmark]: RCFGBuilder took 371.45 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 726.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -775.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-10-22 15:51:12,680 INFO L168 Benchmark]: TraceAbstraction took 8750.09 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 74.4 MB). Peak memory consumption was 74.4 MB. Max. memory is 7.1 GB. [2018-10-22 15:51:12,685 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 271.34 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 32.04 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 21.78 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 371.45 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 726.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -775.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8750.09 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 74.4 MB). Peak memory consumption was 74.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1431655765 * x <= 4294967296 * ((1431655765 * x + -2863311531) / 4294967296) + 4294967295 || (y <= 1 && 1 <= y) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. SAFE Result, 8.6s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 7.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 11 SDslu, 51 SDs, 0 SdLazy, 37 SolverSat, 8 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=3, 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 25 HoareAnnotationTreeSize, 3 FomulaSimplifications, 31 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1841 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...