/usr/bin/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/hhk2008.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 00:28:29,401 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-19 00:28:29,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 00:28:29,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 00:28:29,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 00:28:29,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 00:28:29,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 00:28:29,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 00:28:29,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 00:28:29,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 00:28:29,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 00:28:29,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 00:28:29,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 00:28:29,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 00:28:29,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-19 00:28:29,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 00:28:29,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 00:28:29,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 00:28:29,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-19 00:28:29,550 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 00:28:29,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 00:28:29,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 00:28:29,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 00:28:29,552 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 00:28:29,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 00:28:29,552 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 00:28:29,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 00:28:29,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 00:28:29,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 00:28:29,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 00:28:29,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 00:28:29,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 00:28:29,554 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 00:28:29,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 00:28:29,554 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 00:28:29,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 00:28:29,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 00:28:29,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 00:28:29,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 00:28:29,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 00:28:29,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 00:28:29,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 00:28:29,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 00:28:29,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 00:28:29,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 00:28:29,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 00:28:29,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 00:28:29,557 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 00:28:29,557 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; [2020-08-19 00:28:29,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 00:28:29,867 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 00:28:29,871 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 00:28:29,873 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 00:28:29,874 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 00:28:29,875 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/hhk2008.i [2020-08-19 00:28:29,941 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ea23e13b/ff6c417b32904b5fbe687c15fa232e59/FLAG359dd3d3f [2020-08-19 00:28:30,384 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 00:28:30,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/hhk2008.i [2020-08-19 00:28:30,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ea23e13b/ff6c417b32904b5fbe687c15fa232e59/FLAG359dd3d3f [2020-08-19 00:28:30,790 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ea23e13b/ff6c417b32904b5fbe687c15fa232e59 [2020-08-19 00:28:30,801 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 00:28:30,803 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 00:28:30,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 00:28:30,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 00:28:30,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 00:28:30,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:28:30" (1/1) ... [2020-08-19 00:28:30,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6665a633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:28:30, skipping insertion in model container [2020-08-19 00:28:30,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:28:30" (1/1) ... [2020-08-19 00:28:30,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 00:28:30,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 00:28:31,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:28:31,020 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 00:28:31,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:28:31,046 INFO L208 MainTranslator]: Completed translation [2020-08-19 00:28:31,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:28:31 WrapperNode [2020-08-19 00:28:31,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 00:28:31,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 00:28:31,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 00:28:31,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 00:28:31,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:28:31" (1/1) ... [2020-08-19 00:28:31,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:28:31" (1/1) ... [2020-08-19 00:28:31,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:28:31" (1/1) ... [2020-08-19 00:28:31,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:28:31" (1/1) ... [2020-08-19 00:28:31,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:28:31" (1/1) ... [2020-08-19 00:28:31,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:28:31" (1/1) ... [2020-08-19 00:28:31,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:28:31" (1/1) ... [2020-08-19 00:28:31,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 00:28:31,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 00:28:31,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 00:28:31,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 00:28:31,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:28:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-19 00:28:31,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 00:28:31,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 00:28:31,216 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 00:28:31,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-19 00:28:31,216 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 00:28:31,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 00:28:31,217 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 00:28:31,217 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 00:28:31,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-19 00:28:31,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 00:28:31,217 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 00:28:31,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 00:28:31,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 00:28:31,405 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 00:28:31,405 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-19 00:28:31,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:28:31 BoogieIcfgContainer [2020-08-19 00:28:31,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 00:28:31,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 00:28:31,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 00:28:31,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 00:28:31,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 12:28:30" (1/3) ... [2020-08-19 00:28:31,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d926d7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:28:31, skipping insertion in model container [2020-08-19 00:28:31,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:28:31" (2/3) ... [2020-08-19 00:28:31,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d926d7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:28:31, skipping insertion in model container [2020-08-19 00:28:31,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:28:31" (3/3) ... [2020-08-19 00:28:31,419 INFO L109 eAbstractionObserver]: Analyzing ICFG hhk2008.i [2020-08-19 00:28:31,433 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 00:28:31,445 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 00:28:31,457 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 00:28:31,480 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 00:28:31,480 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 00:28:31,481 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 00:28:31,481 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 00:28:31,481 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 00:28:31,481 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 00:28:31,481 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 00:28:31,481 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 00:28:31,498 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-08-19 00:28:31,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-08-19 00:28:31,503 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:28:31,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:28:31,504 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:28:31,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:28:31,509 INFO L82 PathProgramCache]: Analyzing trace with hash -677001103, now seen corresponding path program 1 times [2020-08-19 00:28:31,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:28:31,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648240496] [2020-08-19 00:28:31,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:28:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:28:31,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:28:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:28:31,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:28:31,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648240496] [2020-08-19 00:28:31,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:28:31,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 00:28:31,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372305330] [2020-08-19 00:28:31,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 00:28:31,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:28:31,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 00:28:31,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 00:28:31,928 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 6 states. [2020-08-19 00:28:32,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:28:32,053 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2020-08-19 00:28:32,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 00:28:32,055 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-08-19 00:28:32,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:28:32,064 INFO L225 Difference]: With dead ends: 41 [2020-08-19 00:28:32,064 INFO L226 Difference]: Without dead ends: 14 [2020-08-19 00:28:32,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-19 00:28:32,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-08-19 00:28:32,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-08-19 00:28:32,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-08-19 00:28:32,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-08-19 00:28:32,102 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2020-08-19 00:28:32,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:28:32,103 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-08-19 00:28:32,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 00:28:32,103 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-08-19 00:28:32,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-19 00:28:32,104 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:28:32,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:28:32,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 00:28:32,105 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:28:32,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:28:32,106 INFO L82 PathProgramCache]: Analyzing trace with hash 523340046, now seen corresponding path program 1 times [2020-08-19 00:28:32,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:28:32,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665344716] [2020-08-19 00:28:32,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:28:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:28:32,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:28:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:28:32,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:28:32,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665344716] [2020-08-19 00:28:32,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:28:32,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-19 00:28:32,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541743522] [2020-08-19 00:28:32,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 00:28:32,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:28:32,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 00:28:32,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-19 00:28:32,262 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 7 states. [2020-08-19 00:28:32,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:28:32,336 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-08-19 00:28:32,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 00:28:32,337 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-08-19 00:28:32,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:28:32,338 INFO L225 Difference]: With dead ends: 20 [2020-08-19 00:28:32,338 INFO L226 Difference]: Without dead ends: 15 [2020-08-19 00:28:32,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-19 00:28:32,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-08-19 00:28:32,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-08-19 00:28:32,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-08-19 00:28:32,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-08-19 00:28:32,345 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2020-08-19 00:28:32,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:28:32,345 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-08-19 00:28:32,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 00:28:32,346 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-08-19 00:28:32,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-19 00:28:32,346 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:28:32,347 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:28:32,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 00:28:32,347 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:28:32,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:28:32,348 INFO L82 PathProgramCache]: Analyzing trace with hash -920789999, now seen corresponding path program 2 times [2020-08-19 00:28:32,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:28:32,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648352500] [2020-08-19 00:28:32,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:28:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:28:32,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:28:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:28:32,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:28:32,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648352500] [2020-08-19 00:28:32,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:28:32,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-19 00:28:32,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735811604] [2020-08-19 00:28:32,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 00:28:32,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:28:32,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 00:28:32,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-08-19 00:28:32,547 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 8 states. [2020-08-19 00:28:32,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:28:32,684 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-08-19 00:28:32,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 00:28:32,684 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-08-19 00:28:32,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:28:32,685 INFO L225 Difference]: With dead ends: 15 [2020-08-19 00:28:32,686 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 00:28:32,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-08-19 00:28:32,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 00:28:32,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 00:28:32,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 00:28:32,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 00:28:32,689 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-08-19 00:28:32,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:28:32,689 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 00:28:32,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 00:28:32,690 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 00:28:32,690 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 00:28:32,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 00:28:32,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-19 00:28:32,789 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-19 00:28:32,790 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-19 00:28:32,790 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-19 00:28:32,790 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-19 00:28:32,790 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-19 00:28:32,790 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-19 00:28:32,790 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-08-19 00:28:32,791 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-08-19 00:28:32,791 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-08-19 00:28:32,791 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-08-19 00:28:32,791 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 27) the Hoare annotation is: true [2020-08-19 00:28:32,791 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-19 00:28:32,791 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 27) no Hoare annotation was computed. [2020-08-19 00:28:32,792 INFO L264 CegarLoopResult]: At program point L21-2(lines 21 24) the Hoare annotation is: (let ((.cse1 (+ main_~res~0 main_~cnt~0)) (.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (<= main_~res~0 .cse0))) [2020-08-19 00:28:32,792 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-08-19 00:28:32,792 INFO L264 CegarLoopResult]: At program point L21-3(lines 21 24) the Hoare annotation is: (let ((.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 main_~res~0) (<= main_~res~0 .cse0))) [2020-08-19 00:28:32,792 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-08-19 00:28:32,792 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 27) no Hoare annotation was computed. [2020-08-19 00:28:32,793 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-08-19 00:28:32,794 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-08-19 00:28:32,794 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-08-19 00:28:32,794 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-08-19 00:28:32,795 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-08-19 00:28:32,795 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-08-19 00:28:32,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 12:28:32 BoogieIcfgContainer [2020-08-19 00:28:32,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 00:28:32,823 INFO L168 Benchmark]: Toolchain (without parser) took 2017.08 ms. Allocated memory was 141.6 MB in the beginning and 232.8 MB in the end (delta: 91.2 MB). Free memory was 104.9 MB in the beginning and 184.7 MB in the end (delta: -79.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-08-19 00:28:32,824 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-19 00:28:32,825 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.31 ms. Allocated memory is still 141.6 MB. Free memory was 104.7 MB in the beginning and 95.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-08-19 00:28:32,827 INFO L168 Benchmark]: Boogie Preprocessor took 113.87 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 95.2 MB in the beginning and 183.2 MB in the end (delta: -88.0 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-08-19 00:28:32,829 INFO L168 Benchmark]: RCFGBuilder took 246.72 ms. Allocated memory is still 204.5 MB. Free memory was 182.6 MB in the beginning and 170.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-08-19 00:28:32,836 INFO L168 Benchmark]: TraceAbstraction took 1407.03 ms. Allocated memory was 204.5 MB in the beginning and 232.8 MB in the end (delta: 28.3 MB). Free memory was 169.7 MB in the beginning and 184.7 MB in the end (delta: -15.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2020-08-19 00:28:32,840 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 244.31 ms. Allocated memory is still 141.6 MB. Free memory was 104.7 MB in the beginning and 95.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.87 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 95.2 MB in the beginning and 183.2 MB in the end (delta: -88.0 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 246.72 ms. Allocated memory is still 204.5 MB. Free memory was 182.6 MB in the beginning and 170.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1407.03 ms. Allocated memory was 204.5 MB in the beginning and 232.8 MB in the end (delta: 28.3 MB). Free memory was 169.7 MB in the beginning and 184.7 MB in the end (delta: -15.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (a + b <= res + cnt && res + cnt <= a + b) && res <= a + b - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 38 SDtfs, 16 SDslu, 129 SDs, 0 SdLazy, 74 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 15 NumberOfFragments, 36 HoareAnnotationTreeSize, 10 FomulaSimplifications, 82 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 2054 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...