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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loop-acceleration/underapprox_2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:32:04,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:32:04,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:32:04,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:32:04,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:32:04,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:32:04,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:32:04,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:32:04,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:32:04,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:32:04,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:32:04,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:32:04,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:32:04,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:32:04,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:32:04,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:32:04,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:32:04,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:32:04,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:32:04,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:32:04,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:32:04,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:32:04,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:32:04,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:32:04,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 13:32:04,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:32:04,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:32:04,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:32:04,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:32:04,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:32:04,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:32:04,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:32:04,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:32:04,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:32:04,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:32:04,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:32:04,298 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 [2019-10-07 13:32:04,329 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:32:04,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:32:04,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:32:04,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:32:04,333 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:32:04,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:32:04,333 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:32:04,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:32:04,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:32:04,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:32:04,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:32:04,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:32:04,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:32:04,334 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:32:04,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:32:04,335 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:32:04,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:32:04,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:32:04,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:32:04,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:32:04,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:32:04,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:32:04,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:32:04,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:32:04,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:32:04,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:32:04,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:32:04,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:32:04,337 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 13:32:04,614 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:32:04,627 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:32:04,631 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:32:04,632 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:32:04,633 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:32:04,634 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/underapprox_2-2.c [2019-10-07 13:32:04,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd9f11f93/41612d97fd7d46069e5e04de2fbafcd2/FLAG3dd88d77b [2019-10-07 13:32:05,142 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:32:05,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/underapprox_2-2.c [2019-10-07 13:32:05,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd9f11f93/41612d97fd7d46069e5e04de2fbafcd2/FLAG3dd88d77b [2019-10-07 13:32:05,535 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd9f11f93/41612d97fd7d46069e5e04de2fbafcd2 [2019-10-07 13:32:05,548 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:32:05,550 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:32:05,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:32:05,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:32:05,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:32:05,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:32:05" (1/1) ... [2019-10-07 13:32:05,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@382d0cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:32:05, skipping insertion in model container [2019-10-07 13:32:05,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:32:05" (1/1) ... [2019-10-07 13:32:05,566 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:32:05,585 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:32:05,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:32:05,751 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:32:05,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:32:05,778 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:32:05,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:32:05 WrapperNode [2019-10-07 13:32:05,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:32:05,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:32:05,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:32:05,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:32:05,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:32:05" (1/1) ... [2019-10-07 13:32:05,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:32:05" (1/1) ... [2019-10-07 13:32:05,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:32:05" (1/1) ... [2019-10-07 13:32:05,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:32:05" (1/1) ... [2019-10-07 13:32:05,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:32:05" (1/1) ... [2019-10-07 13:32:05,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:32:05" (1/1) ... [2019-10-07 13:32:05,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:32:05" (1/1) ... [2019-10-07 13:32:05,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:32:05,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:32:05,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:32:05,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:32:05,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:32:05" (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 [2019-10-07 13:32:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:32:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:32:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 13:32:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:32:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:32:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 13:32:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:32:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:32:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:32:06,115 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:32:06,116 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 13:32:06,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:32:06 BoogieIcfgContainer [2019-10-07 13:32:06,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:32:06,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:32:06,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:32:06,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:32:06,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:32:05" (1/3) ... [2019-10-07 13:32:06,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c0623b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:32:06, skipping insertion in model container [2019-10-07 13:32:06,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:32:05" (2/3) ... [2019-10-07 13:32:06,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c0623b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:32:06, skipping insertion in model container [2019-10-07 13:32:06,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:32:06" (3/3) ... [2019-10-07 13:32:06,126 INFO L109 eAbstractionObserver]: Analyzing ICFG underapprox_2-2.c [2019-10-07 13:32:06,138 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:32:06,145 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:32:06,157 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:32:06,182 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:32:06,182 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:32:06,182 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:32:06,183 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:32:06,183 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:32:06,183 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:32:06,183 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:32:06,183 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:32:06,201 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-07 13:32:06,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-07 13:32:06,206 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:32:06,207 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:32:06,209 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:32:06,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:32:06,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1869232855, now seen corresponding path program 1 times [2019-10-07 13:32:06,220 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:32:06,221 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:32:06,221 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:32:06,221 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:32:06,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:32:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:32:06,501 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 5 [2019-10-07 13:32:06,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:32:06,508 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:32:06,509 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:32:06,509 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:32:06,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:32:06,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:32:06,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:32:06,525 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2019-10-07 13:32:06,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:32:06,564 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-10-07 13:32:06,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:32:06,566 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-10-07 13:32:06,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:32:06,579 INFO L225 Difference]: With dead ends: 29 [2019-10-07 13:32:06,580 INFO L226 Difference]: Without dead ends: 12 [2019-10-07 13:32:06,584 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:32:06,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-10-07 13:32:06,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-10-07 13:32:06,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-07 13:32:06,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-10-07 13:32:06,615 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-10-07 13:32:06,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:32:06,615 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-10-07 13:32:06,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:32:06,616 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-10-07 13:32:06,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-07 13:32:06,616 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:32:06,617 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:32:06,617 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:32:06,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:32:06,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1455464170, now seen corresponding path program 1 times [2019-10-07 13:32:06,618 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:32:06,618 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:32:06,619 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:32:06,619 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:32:06,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:32:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:32:06,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:32:06,726 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:32:06,726 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:32:06,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:32:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:32:06,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-07 13:32:06,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:32:06,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:32:06,836 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:32:06,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:32:06,942 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 13:32:06,974 INFO L162 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-10-07 13:32:06,975 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 13:32:07,002 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 13:32:07,020 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 13:32:07,021 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 13:32:07,089 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-07 13:32:07,288 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-07 13:32:07,332 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-07 13:32:07,340 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 13:32:07,341 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 13:32:07,341 INFO L193 IcfgInterpreter]: Reachable states at location L14-3 satisfy 76#(and (not (< (mod main_~x~0 4294967296) 6)) (<= 0 main_~x~0)) [2019-10-07 13:32:07,341 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#true [2019-10-07 13:32:07,342 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#true [2019-10-07 13:32:07,342 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 105#true [2019-10-07 13:32:07,343 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 96#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-07 13:32:07,343 INFO L193 IcfgInterpreter]: Reachable states at location L14-2 satisfy 71#(<= 0 main_~x~0) [2019-10-07 13:32:07,344 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 13:32:07,344 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initFINAL satisfy 100#true [2019-10-07 13:32:07,344 INFO L193 IcfgInterpreter]: Reachable states at location L5 satisfy 91#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-07 13:32:07,344 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 81#(and (or (and (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1)) (and (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0))) (or (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| 1))) [2019-10-07 13:32:07,344 INFO L193 IcfgInterpreter]: Reachable states at location L4 satisfy 86#(and (or (and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) (and (<= 1 __VERIFIER_assert_~cond) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1))) (or (and (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)))) [2019-10-07 13:32:07,564 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 13:32:07,565 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 7, 6] total 15 [2019-10-07 13:32:07,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-07 13:32:07,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-07 13:32:07,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2019-10-07 13:32:07,571 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 15 states. [2019-10-07 13:32:07,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:32:07,806 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2019-10-07 13:32:07,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 13:32:07,807 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 11 [2019-10-07 13:32:07,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:32:07,807 INFO L225 Difference]: With dead ends: 17 [2019-10-07 13:32:07,807 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 13:32:07,809 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2019-10-07 13:32:07,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 13:32:07,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 13:32:07,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 13:32:07,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 13:32:07,811 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-10-07 13:32:07,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:32:07,811 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 13:32:07,811 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-07 13:32:07,811 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 13:32:07,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 13:32:08,012 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:32:08,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 13:32:08,068 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-07 13:32:08,068 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:32:08,068 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:32:08,068 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-07 13:32:08,068 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 13:32:08,068 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 13:32:08,069 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 20) the Hoare annotation is: true [2019-10-07 13:32:08,069 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 20) no Hoare annotation was computed. [2019-10-07 13:32:08,069 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 20) no Hoare annotation was computed. [2019-10-07 13:32:08,069 INFO L439 ceAbstractionStarter]: At program point L14-2(lines 14 17) the Hoare annotation is: (and (let ((.cse0 (mod main_~x~0 4294967296))) (or (< .cse0 6) (= 6 .cse0))) (<= 0 main_~x~0)) [2019-10-07 13:32:08,070 INFO L439 ceAbstractionStarter]: At program point L14-3(lines 14 17) the Hoare annotation is: (and (<= 0 main_~x~0) (= 6 (mod main_~x~0 4294967296))) [2019-10-07 13:32:08,070 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-07 13:32:08,070 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-07 13:32:08,070 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-07 13:32:08,070 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-07 13:32:08,071 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-07 13:32:08,071 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-07 13:32:08,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 01:32:08 BoogieIcfgContainer [2019-10-07 13:32:08,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 13:32:08,090 INFO L168 Benchmark]: Toolchain (without parser) took 2540.29 ms. Allocated memory was 146.3 MB in the beginning and 233.8 MB in the end (delta: 87.6 MB). Free memory was 103.9 MB in the beginning and 169.8 MB in the end (delta: -65.9 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-10-07 13:32:08,091 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 13:32:08,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.27 ms. Allocated memory is still 146.3 MB. Free memory was 103.5 MB in the beginning and 94.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-10-07 13:32:08,093 INFO L168 Benchmark]: Boogie Preprocessor took 119.33 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 94.5 MB in the beginning and 183.5 MB in the end (delta: -88.9 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2019-10-07 13:32:08,093 INFO L168 Benchmark]: RCFGBuilder took 218.55 ms. Allocated memory is still 204.5 MB. Free memory was 183.5 MB in the beginning and 172.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-10-07 13:32:08,094 INFO L168 Benchmark]: TraceAbstraction took 1968.86 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 170.9 MB in the beginning and 169.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2019-10-07 13:32:08,098 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 228.27 ms. Allocated memory is still 146.3 MB. Free memory was 103.5 MB in the beginning and 94.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.33 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 94.5 MB in the beginning and 183.5 MB in the end (delta: -88.9 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 218.55 ms. Allocated memory is still 204.5 MB. Free memory was 183.5 MB in the beginning and 172.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1968.86 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 170.9 MB in the beginning and 169.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 30.5 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: 14]: Loop Invariant Derived loop invariant: (x % 4294967296 < 6 || 6 == x % 4294967296) && 0 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 4 SDslu, 55 SDs, 0 SdLazy, 40 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.7s 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 DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 29 HoareAnnotationTreeSize, 9 FomulaSimplifications, 9 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 1055 SizeOfPredicates, 0 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 370, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 21, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 10, TOOLS_POST_TIME[ms]: 13, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME[ms]: 11, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 17, TOOLS_QUANTIFIERELIM_TIME[ms]: 19, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 9, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 24, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 18, DOMAIN_JOIN_TIME[ms]: 165, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 59, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME[ms]: 19, DOMAIN_ISBOTTOM_APPLICATIONS: 1, DOMAIN_ISBOTTOM_TIME[ms]: 2, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 155, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 154, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 6, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 6, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 11, DAG_COMPRESSION_PROCESSED_NODES: 57, DAG_COMPRESSION_RETAINED_NODES: 41, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...