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/loops/sum04-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:04:06,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:04:06,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:04:06,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:04:06,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:04:06,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:04:06,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:04:06,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:04:06,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:04:06,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:04:06,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:04:06,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:04:06,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:04:06,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:04:06,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:04:06,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:04:06,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:04:06,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:04:06,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:04:06,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:04:06,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:04:06,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:04:06,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:04:06,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:04:06,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:04:06,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:04:06,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:04:06,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:04:06,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:04:06,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:04:06,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:04:06,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:04:06,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:04:06,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:04:06,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:04:06,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:04:06,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:04:06,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:04:06,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:04:06,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:04:06,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:04:06,218 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 [2019-10-15 03:04:06,237 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:04:06,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:04:06,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:04:06,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:04:06,240 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:04:06,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:04:06,240 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:04:06,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:04:06,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:04:06,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:04:06,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:04:06,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:04:06,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:04:06,243 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:04:06,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:04:06,244 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:04:06,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:04:06,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:04:06,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:04:06,245 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:04:06,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:04:06,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:04:06,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:04:06,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:04:06,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:04:06,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:04:06,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:04:06,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:04:06,247 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 [2019-10-15 03:04:06,527 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:04:06,548 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:04:06,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:04:06,556 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:04:06,557 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:04:06,558 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum04-2.i [2019-10-15 03:04:06,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6a2027f/778b875c24384dc8917124503bb29fc9/FLAG10f63fe9c [2019-10-15 03:04:07,118 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:04:07,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum04-2.i [2019-10-15 03:04:07,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6a2027f/778b875c24384dc8917124503bb29fc9/FLAG10f63fe9c [2019-10-15 03:04:07,536 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6a2027f/778b875c24384dc8917124503bb29fc9 [2019-10-15 03:04:07,547 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:04:07,549 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:04:07,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:04:07,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:04:07,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:04:07,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:04:07" (1/1) ... [2019-10-15 03:04:07,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5171f16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:07, skipping insertion in model container [2019-10-15 03:04:07,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:04:07" (1/1) ... [2019-10-15 03:04:07,568 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:04:07,586 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:04:07,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:04:07,743 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:04:07,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:04:07,774 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:04:07,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:07 WrapperNode [2019-10-15 03:04:07,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:04:07,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:04:07,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:04:07,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:04:07,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:07" (1/1) ... [2019-10-15 03:04:07,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:07" (1/1) ... [2019-10-15 03:04:07,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:07" (1/1) ... [2019-10-15 03:04:07,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:07" (1/1) ... [2019-10-15 03:04:07,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:07" (1/1) ... [2019-10-15 03:04:07,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:07" (1/1) ... [2019-10-15 03:04:07,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:07" (1/1) ... [2019-10-15 03:04:07,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:04:07,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:04:07,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:04:07,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:04:07,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:07" (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 [2019-10-15 03:04:07,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:04:07,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:04:07,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 03:04:07,960 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:04:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:04:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 03:04:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:04:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:04:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:04:08,151 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:04:08,151 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 03:04:08,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:04:08 BoogieIcfgContainer [2019-10-15 03:04:08,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:04:08,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:04:08,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:04:08,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:04:08,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:04:07" (1/3) ... [2019-10-15 03:04:08,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d84a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:04:08, skipping insertion in model container [2019-10-15 03:04:08,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:07" (2/3) ... [2019-10-15 03:04:08,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d84a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:04:08, skipping insertion in model container [2019-10-15 03:04:08,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:04:08" (3/3) ... [2019-10-15 03:04:08,161 INFO L109 eAbstractionObserver]: Analyzing ICFG sum04-2.i [2019-10-15 03:04:08,172 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:04:08,180 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:04:08,191 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:04:08,229 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:04:08,230 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:04:08,230 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:04:08,230 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:04:08,231 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:04:08,231 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:04:08,231 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:04:08,231 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:04:08,258 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-15 03:04:08,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 03:04:08,266 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:04:08,267 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:04:08,270 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:04:08,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:04:08,278 INFO L82 PathProgramCache]: Analyzing trace with hash 9943896, now seen corresponding path program 1 times [2019-10-15 03:04:08,290 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:04:08,293 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741068251] [2019-10-15 03:04:08,294 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:08,296 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:08,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:04:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:04:08,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:08,455 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741068251] [2019-10-15 03:04:08,456 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:04:08,457 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:04:08,457 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504578904] [2019-10-15 03:04:08,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:04:08,463 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:04:08,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:04:08,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:04:08,480 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2019-10-15 03:04:08,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:04:08,515 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-10-15 03:04:08,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:04:08,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-10-15 03:04:08,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:04:08,525 INFO L225 Difference]: With dead ends: 29 [2019-10-15 03:04:08,526 INFO L226 Difference]: Without dead ends: 12 [2019-10-15 03:04:08,530 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:04:08,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-10-15 03:04:08,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-10-15 03:04:08,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-15 03:04:08,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-10-15 03:04:08,567 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-10-15 03:04:08,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:04:08,568 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-10-15 03:04:08,568 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:04:08,568 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-10-15 03:04:08,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-15 03:04:08,569 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:04:08,569 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:04:08,569 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:04:08,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:04:08,570 INFO L82 PathProgramCache]: Analyzing trace with hash 282846133, now seen corresponding path program 1 times [2019-10-15 03:04:08,570 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:04:08,571 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977077166] [2019-10-15 03:04:08,571 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:08,571 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:08,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:04:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:04:08,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:08,623 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977077166] [2019-10-15 03:04:08,623 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154768757] [2019-10-15 03:04:08,624 INFO L94 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 [2019-10-15 03:04:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:04:08,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:04:08,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:04:08,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:08,692 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:04:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:08,740 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1885156950] [2019-10-15 03:04:08,765 INFO L162 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-10-15 03:04:08,765 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:04:08,772 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:04:08,781 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:04:08,782 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:04:08,843 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-15 03:04:09,084 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-15 03:04:09,144 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-15 03:04:09,156 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:04:09,381 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 03:04:09,381 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 6] total 11 [2019-10-15 03:04:09,382 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264650644] [2019-10-15 03:04:09,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 03:04:09,387 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:04:09,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 03:04:09,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:04:09,388 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 11 states. [2019-10-15 03:04:09,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:04:09,506 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2019-10-15 03:04:09,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 03:04:09,508 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 11 [2019-10-15 03:04:09,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:04:09,509 INFO L225 Difference]: With dead ends: 20 [2019-10-15 03:04:09,509 INFO L226 Difference]: Without dead ends: 15 [2019-10-15 03:04:09,510 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2019-10-15 03:04:09,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-15 03:04:09,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-15 03:04:09,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-15 03:04:09,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-10-15 03:04:09,516 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2019-10-15 03:04:09,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:04:09,516 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-10-15 03:04:09,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 03:04:09,517 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-10-15 03:04:09,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 03:04:09,518 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:04:09,518 INFO L380 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:04:09,721 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:04:09,722 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:04:09,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:04:09,723 INFO L82 PathProgramCache]: Analyzing trace with hash 76376728, now seen corresponding path program 2 times [2019-10-15 03:04:09,723 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:04:09,724 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812744051] [2019-10-15 03:04:09,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:09,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:09,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:04:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:04:09,816 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:09,816 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812744051] [2019-10-15 03:04:09,816 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096727274] [2019-10-15 03:04:09,817 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:04:09,854 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-15 03:04:09,854 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 03:04:09,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 03:04:09,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:04:09,863 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:09,863 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:04:09,922 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:09,923 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [153744327] [2019-10-15 03:04:09,924 INFO L162 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-10-15 03:04:09,924 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:04:09,925 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:04:09,925 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:04:09,925 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:04:09,948 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-15 03:04:10,039 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-15 03:04:10,062 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-15 03:04:10,065 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:04:10,219 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 03:04:10,219 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 6] total 15 [2019-10-15 03:04:10,220 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805667584] [2019-10-15 03:04:10,221 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 03:04:10,221 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:04:10,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 03:04:10,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2019-10-15 03:04:10,222 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 15 states. [2019-10-15 03:04:10,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:04:10,373 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2019-10-15 03:04:10,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:04:10,374 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 14 [2019-10-15 03:04:10,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:04:10,375 INFO L225 Difference]: With dead ends: 24 [2019-10-15 03:04:10,375 INFO L226 Difference]: Without dead ends: 19 [2019-10-15 03:04:10,376 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2019-10-15 03:04:10,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-15 03:04:10,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-15 03:04:10,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-15 03:04:10,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-10-15 03:04:10,382 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 14 [2019-10-15 03:04:10,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:04:10,382 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-10-15 03:04:10,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 03:04:10,382 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-10-15 03:04:10,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 03:04:10,383 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:04:10,384 INFO L380 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:04:10,587 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:04:10,587 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:04:10,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:04:10,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1416005160, now seen corresponding path program 3 times [2019-10-15 03:04:10,589 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:04:10,589 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040746397] [2019-10-15 03:04:10,589 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:10,590 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:10,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:04:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:04:10,847 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:10,848 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040746397] [2019-10-15 03:04:10,848 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943002055] [2019-10-15 03:04:10,849 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:04:10,894 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-15 03:04:10,894 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 03:04:10,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 24 conjunts are in the unsatisfiable core [2019-10-15 03:04:10,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:04:10,981 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:10,982 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:04:11,354 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:11,354 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [765907642] [2019-10-15 03:04:11,356 INFO L162 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-10-15 03:04:11,356 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:04:11,356 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:04:11,357 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:04:11,357 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:04:11,381 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-15 03:04:11,439 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-15 03:04:11,462 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-15 03:04:11,465 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:04:11,801 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 03:04:11,802 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13, 6] total 29 [2019-10-15 03:04:11,802 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722969708] [2019-10-15 03:04:11,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-10-15 03:04:11,803 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:04:11,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-10-15 03:04:11,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2019-10-15 03:04:11,804 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 29 states. [2019-10-15 03:04:12,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:04:12,430 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-10-15 03:04:12,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-15 03:04:12,431 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 18 [2019-10-15 03:04:12,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:04:12,432 INFO L225 Difference]: With dead ends: 25 [2019-10-15 03:04:12,432 INFO L226 Difference]: Without dead ends: 20 [2019-10-15 03:04:12,433 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=133, Invalid=1427, Unknown=0, NotChecked=0, Total=1560 [2019-10-15 03:04:12,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-15 03:04:12,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-10-15 03:04:12,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-15 03:04:12,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-10-15 03:04:12,438 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 18 [2019-10-15 03:04:12,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:04:12,439 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-10-15 03:04:12,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-10-15 03:04:12,439 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-10-15 03:04:12,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-15 03:04:12,440 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:04:12,440 INFO L380 BasicCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:04:12,650 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:04:12,651 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:04:12,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:04:12,652 INFO L82 PathProgramCache]: Analyzing trace with hash -971901643, now seen corresponding path program 4 times [2019-10-15 03:04:12,652 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:04:12,653 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713173144] [2019-10-15 03:04:12,653 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:12,653 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:12,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:04:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:04:12,749 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:12,749 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713173144] [2019-10-15 03:04:12,750 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:04:12,750 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 03:04:12,750 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715829692] [2019-10-15 03:04:12,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 03:04:12,750 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:04:12,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 03:04:12,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:04:12,751 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 11 states. [2019-10-15 03:04:12,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:04:12,792 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-10-15 03:04:12,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 03:04:12,796 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2019-10-15 03:04:12,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:04:12,797 INFO L225 Difference]: With dead ends: 20 [2019-10-15 03:04:12,797 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 03:04:12,798 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:04:12,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 03:04:12,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 03:04:12,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 03:04:12,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 03:04:12,799 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-10-15 03:04:12,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:04:12,799 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 03:04:12,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 03:04:12,799 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 03:04:12,800 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 03:04:12,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 03:04:13,107 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2019-10-15 03:04:13,110 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-15 03:04:13,110 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:04:13,110 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:04:13,110 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 03:04:13,110 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 03:04:13,110 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 03:04:13,110 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 11 17) the Hoare annotation is: true [2019-10-15 03:04:13,110 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 17) no Hoare annotation was computed. [2019-10-15 03:04:13,110 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 11 17) no Hoare annotation was computed. [2019-10-15 03:04:13,111 INFO L439 ceAbstractionStarter]: At program point L13-3(lines 13 15) the Hoare annotation is: (or (and (<= 10 main_~sn~0) (< main_~i~0 7) (<= 6 main_~i~0) (<= main_~sn~0 10)) (and (<= 1 main_~i~0) (<= main_~i~0 1) (<= main_~sn~0 0) (<= 0 main_~sn~0)) (and (<= 7 main_~i~0) (< main_~i~0 8) (<= 12 main_~sn~0) (<= main_~sn~0 12)) (and (<= 14 main_~sn~0) (<= 8 main_~i~0) (<= main_~i~0 8) (<= main_~sn~0 14)) (and (<= 6 main_~sn~0) (<= main_~sn~0 6) (<= 4 main_~i~0) (<= main_~i~0 4)) (and (<= main_~sn~0 8) (<= 5 main_~i~0) (<= main_~i~0 5) (<= 8 main_~sn~0)) (and (<= 9 main_~i~0) (<= main_~sn~0 16) (< 15 main_~sn~0)) (and (<= main_~i~0 3) (<= main_~sn~0 4) (<= 3 main_~i~0) (<= 4 main_~sn~0)) (and (<= 2 main_~i~0) (<= main_~i~0 2) (<= main_~sn~0 2) (<= 2 main_~sn~0))) [2019-10-15 03:04:13,111 INFO L439 ceAbstractionStarter]: At program point L13-4(lines 13 15) the Hoare annotation is: (and (< 8 main_~i~0) (<= main_~sn~0 16) (< 15 main_~sn~0)) [2019-10-15 03:04:13,111 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-15 03:04:13,111 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:04:13,112 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-15 03:04:13,112 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-15 03:04:13,112 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-15 03:04:13,112 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:04:13,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:04:13 BoogieIcfgContainer [2019-10-15 03:04:13,131 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 03:04:13,133 INFO L168 Benchmark]: Toolchain (without parser) took 5584.31 ms. Allocated memory was 138.4 MB in the beginning and 245.4 MB in the end (delta: 107.0 MB). Free memory was 103.6 MB in the beginning and 148.8 MB in the end (delta: -45.2 MB). Peak memory consumption was 61.7 MB. Max. memory is 7.1 GB. [2019-10-15 03:04:13,134 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-15 03:04:13,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.54 ms. Allocated memory is still 138.4 MB. Free memory was 103.3 MB in the beginning and 94.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-15 03:04:13,136 INFO L168 Benchmark]: Boogie Preprocessor took 122.89 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 94.1 MB in the beginning and 182.2 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-10-15 03:04:13,136 INFO L168 Benchmark]: RCFGBuilder took 253.83 ms. Allocated memory is still 203.4 MB. Free memory was 182.2 MB in the beginning and 170.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-10-15 03:04:13,137 INFO L168 Benchmark]: TraceAbstraction took 4977.72 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 169.7 MB in the beginning and 148.8 MB in the end (delta: 20.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 7.1 GB. [2019-10-15 03:04:13,141 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 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 224.54 ms. Allocated memory is still 138.4 MB. Free memory was 103.3 MB in the beginning and 94.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.89 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 94.1 MB in the beginning and 182.2 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 253.83 ms. Allocated memory is still 203.4 MB. Free memory was 182.2 MB in the beginning and 170.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4977.72 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 169.7 MB in the beginning and 148.8 MB in the end (delta: 20.9 MB). Peak memory consumption was 62.9 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: ((((((((((10 <= sn && i < 7) && 6 <= i) && sn <= 10) || (((1 <= i && i <= 1) && sn <= 0) && 0 <= sn)) || (((7 <= i && i < 8) && 12 <= sn) && sn <= 12)) || (((14 <= sn && 8 <= i) && i <= 8) && sn <= 14)) || (((6 <= sn && sn <= 6) && 4 <= i) && i <= 4)) || (((sn <= 8 && 5 <= i) && i <= 5) && 8 <= sn)) || ((9 <= i && sn <= 16) && 15 < sn)) || (((i <= 3 && sn <= 4) && 3 <= i) && 4 <= sn)) || (((2 <= i && i <= 2) && sn <= 2) && 2 <= sn) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 4.8s, OverallIterations: 5, TraceHistogramMax: 9, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 42 SDtfs, 20 SDslu, 200 SDs, 0 SdLazy, 346 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 101 SyntacticMatches, 4 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=4, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 21 NumberOfFragments, 130 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 57 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 6535 SizeOfPredicates, 4 NumberOfNonLiveVariables, 137 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 45/186 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 643, ICFG_INTERPRETER_ENTERED_PROCEDURES: 12, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 63, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 30, TOOLS_POST_TIME[ms]: 25, TOOLS_POST_CALL_APPLICATIONS: 15, TOOLS_POST_CALL_TIME[ms]: 26, TOOLS_POST_RETURN_APPLICATIONS: 6, TOOLS_POST_RETURN_TIME[ms]: 1, TOOLS_QUANTIFIERELIM_APPLICATIONS: 51, TOOLS_QUANTIFIERELIM_TIME[ms]: 39, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 18, FLUID_QUERY_TIME[ms]: 6, FLUID_QUERIES: 72, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 54, DOMAIN_JOIN_TIME[ms]: 342, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 6, DOMAIN_WIDEN_TIME[ms]: 120, DOMAIN_ISSUBSETEQ_APPLICATIONS: 9, DOMAIN_ISSUBSETEQ_TIME[ms]: 19, DOMAIN_ISBOTTOM_APPLICATIONS: 3, DOMAIN_ISBOTTOM_TIME[ms]: 8, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 281, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 280, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 9, CALL_SUMMARIZER_APPLICATIONS: 6, CALL_SUMMARIZER_CACHE_MISSES: 3, CALL_SUMMARIZER_OVERALL_TIME[ms]: 16, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 15, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 23, DAG_COMPRESSION_PROCESSED_NODES: 171, DAG_COMPRESSION_RETAINED_NODES: 126, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...