/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=SMALLEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 17:13:16,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 17:13:16,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 17:13:16,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 17:13:16,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 17:13:16,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 17:13:16,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 17:13:16,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 17:13:16,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 17:13:16,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 17:13:16,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 17:13:16,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 17:13:16,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 17:13:16,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 17:13:16,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 17:13:16,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 17:13:16,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 17:13:16,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 17:13:16,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 17:13:16,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 17:13:16,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 17:13:16,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 17:13:16,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 17:13:16,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 17:13:16,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 17:13:16,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 17:13:16,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 17:13:16,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 17:13:16,393 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 [2020-08-18 17:13:16,415 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 17:13:16,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 17:13:16,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 17:13:16,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 17:13:16,417 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 17:13:16,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 17:13:16,417 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 17:13:16,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 17:13:16,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 17:13:16,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 17:13:16,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 17:13:16,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 17:13:16,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 17:13:16,418 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 17:13:16,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 17:13:16,419 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 17:13:16,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 17:13:16,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 17:13:16,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 17:13:16,420 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 17:13:16,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 17:13:16,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 17:13:16,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 17:13:16,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 17:13:16,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 17:13:16,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 17:13:16,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 17:13:16,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 17:13:16,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 17:13:16,421 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=SMALLEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLEST; [2020-08-18 17:13:16,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 17:13:16,754 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 17:13:16,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 17:13:16,758 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 17:13:16,759 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 17:13:16,759 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2020-08-18 17:13:16,835 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51b6070b9/a1c0f5ad0b594cc38b84608251c31d69/FLAGa168772b1 [2020-08-18 17:13:17,298 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 17:13:17,301 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2020-08-18 17:13:17,308 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51b6070b9/a1c0f5ad0b594cc38b84608251c31d69/FLAGa168772b1 [2020-08-18 17:13:17,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51b6070b9/a1c0f5ad0b594cc38b84608251c31d69 [2020-08-18 17:13:17,682 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 17:13:17,684 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 17:13:17,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 17:13:17,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 17:13:17,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 17:13:17,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 05:13:17" (1/1) ... [2020-08-18 17:13:17,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36801391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:13:17, skipping insertion in model container [2020-08-18 17:13:17,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 05:13:17" (1/1) ... [2020-08-18 17:13:17,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 17:13:17,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 17:13:17,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 17:13:17,899 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 17:13:17,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 17:13:17,946 INFO L208 MainTranslator]: Completed translation [2020-08-18 17:13:17,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:13:17 WrapperNode [2020-08-18 17:13:17,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 17:13:17,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 17:13:17,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 17:13:17,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 17:13:17,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:13:17" (1/1) ... [2020-08-18 17:13:17,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:13:17" (1/1) ... [2020-08-18 17:13:18,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:13:17" (1/1) ... [2020-08-18 17:13:18,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:13:17" (1/1) ... [2020-08-18 17:13:18,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:13:17" (1/1) ... [2020-08-18 17:13:18,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:13:17" (1/1) ... [2020-08-18 17:13:18,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:13:17" (1/1) ... [2020-08-18 17:13:18,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 17:13:18,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 17:13:18,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 17:13:18,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 17:13:18,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:13:17" (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 [2020-08-18 17:13:18,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 17:13:18,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 17:13:18,120 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 17:13:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 17:13:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 17:13:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-18 17:13:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 17:13:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 17:13:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 17:13:18,344 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 17:13:18,345 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-18 17:13:18,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 05:13:18 BoogieIcfgContainer [2020-08-18 17:13:18,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 17:13:18,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 17:13:18,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 17:13:18,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 17:13:18,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 05:13:17" (1/3) ... [2020-08-18 17:13:18,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c746d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 05:13:18, skipping insertion in model container [2020-08-18 17:13:18,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:13:17" (2/3) ... [2020-08-18 17:13:18,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c746d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 05:13:18, skipping insertion in model container [2020-08-18 17:13:18,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 05:13:18" (3/3) ... [2020-08-18 17:13:18,383 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.c [2020-08-18 17:13:18,394 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 17:13:18,401 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 17:13:18,417 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 17:13:18,443 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 17:13:18,443 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 17:13:18,443 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 17:13:18,443 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 17:13:18,443 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 17:13:18,444 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 17:13:18,444 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 17:13:18,444 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 17:13:18,460 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-08-18 17:13:18,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-08-18 17:13:18,465 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:13:18,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:13:18,467 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:13:18,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:13:18,473 INFO L82 PathProgramCache]: Analyzing trace with hash 964689295, now seen corresponding path program 1 times [2020-08-18 17:13:18,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:13:18,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407053370] [2020-08-18 17:13:18,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:13:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:13:18,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:13:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:13:18,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:13:18,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407053370] [2020-08-18 17:13:18,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:13:18,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 17:13:18,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531628131] [2020-08-18 17:13:18,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 17:13:18,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:13:18,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 17:13:18,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 17:13:18,761 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2020-08-18 17:13:18,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:13:18,889 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2020-08-18 17:13:18,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-18 17:13:18,891 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-08-18 17:13:18,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:13:18,904 INFO L225 Difference]: With dead ends: 36 [2020-08-18 17:13:18,904 INFO L226 Difference]: Without dead ends: 20 [2020-08-18 17:13:18,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-18 17:13:18,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-08-18 17:13:18,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2020-08-18 17:13:18,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-08-18 17:13:18,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2020-08-18 17:13:18,948 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2020-08-18 17:13:18,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:13:18,949 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-08-18 17:13:18,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 17:13:18,949 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2020-08-18 17:13:18,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-18 17:13:18,950 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:13:18,950 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:13:18,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 17:13:18,951 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:13:18,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:13:18,951 INFO L82 PathProgramCache]: Analyzing trace with hash 2096975293, now seen corresponding path program 1 times [2020-08-18 17:13:18,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:13:18,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [916051999] [2020-08-18 17:13:18,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:13:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:13:19,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:13:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:13:19,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:13:19,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [916051999] [2020-08-18 17:13:19,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:13:19,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 17:13:19,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165609041] [2020-08-18 17:13:19,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 17:13:19,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:13:19,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 17:13:19,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-18 17:13:19,213 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 5 states. [2020-08-18 17:13:21,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:13:21,498 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2020-08-18 17:13:21,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 17:13:21,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-08-18 17:13:21,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:13:21,500 INFO L225 Difference]: With dead ends: 35 [2020-08-18 17:13:21,500 INFO L226 Difference]: Without dead ends: 22 [2020-08-18 17:13:21,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-08-18 17:13:21,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-08-18 17:13:21,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-08-18 17:13:21,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-08-18 17:13:21,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2020-08-18 17:13:21,516 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 14 [2020-08-18 17:13:21,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:13:21,516 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2020-08-18 17:13:21,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 17:13:21,516 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2020-08-18 17:13:21,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-18 17:13:21,518 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:13:21,519 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:13:21,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 17:13:21,519 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:13:21,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:13:21,521 INFO L82 PathProgramCache]: Analyzing trace with hash -726667991, now seen corresponding path program 1 times [2020-08-18 17:13:21,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:13:21,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708855598] [2020-08-18 17:13:21,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:13:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:13:21,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:13:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:13:21,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:13:21,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708855598] [2020-08-18 17:13:21,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:13:21,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 17:13:21,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459991331] [2020-08-18 17:13:21,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 17:13:21,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:13:21,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 17:13:21,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-18 17:13:21,979 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 5 states. [2020-08-18 17:13:24,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:13:24,242 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2020-08-18 17:13:24,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 17:13:24,243 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-08-18 17:13:24,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:13:24,243 INFO L225 Difference]: With dead ends: 37 [2020-08-18 17:13:24,244 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 17:13:24,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-08-18 17:13:24,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 17:13:24,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 17:13:24,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 17:13:24,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 17:13:24,246 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-08-18 17:13:24,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:13:24,246 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 17:13:24,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 17:13:24,246 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 17:13:24,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 17:13:24,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 17:13:24,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 17:13:24,385 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2020-08-18 17:13:24,388 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 17:13:24,388 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_107~0 |old(~__return_107~0)|) (= ~__return_main~0 |old(~__return_main~0)|)) [2020-08-18 17:13:24,388 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 17:13:24,389 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 17:13:24,389 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-18 17:13:24,389 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 17:13:24,389 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 17:13:24,389 INFO L268 CegarLoopResult]: For program point L25(lines 25 47) no Hoare annotation was computed. [2020-08-18 17:13:24,389 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 7 76) no Hoare annotation was computed. [2020-08-18 17:13:24,390 INFO L268 CegarLoopResult]: For program point L52(lines 52 74) no Hoare annotation was computed. [2020-08-18 17:13:24,390 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 7 76) no Hoare annotation was computed. [2020-08-18 17:13:24,390 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 61) no Hoare annotation was computed. [2020-08-18 17:13:24,390 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 7 76) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-08-18 17:13:24,390 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-18 17:13:24,390 INFO L268 CegarLoopResult]: For program point L59(lines 59 68) no Hoare annotation was computed. [2020-08-18 17:13:24,391 INFO L268 CegarLoopResult]: For program point L16(lines 16 48) no Hoare annotation was computed. [2020-08-18 17:13:24,391 INFO L268 CegarLoopResult]: For program point L14(lines 14 75) no Hoare annotation was computed. [2020-08-18 17:13:24,391 INFO L264 CegarLoopResult]: At program point L45(lines 8 76) the Hoare annotation is: (let ((.cse0 (= |old(~__return_107~0)| ~__return_107~0))) (or (and .cse0 (<= (div main_~main__y~0 4294967296) 0) (<= 1 main_~main__y~0)) (and (<= (* 2863311531 main_~main__x~0) (let ((.cse1 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse1 (- 4294967296)))) (let ((.cse2 (div (+ .cse3 main_~main__x~0) 3))) (+ (* 12297829383904690176 .cse1) (* 8589934592 .cse2) (* 12297829383904690176 (div (+ .cse3 (* .cse2 (- 3)) main_~main__x~0) 4294967296)) 1431655765))))) .cse0))) [2020-08-18 17:13:24,391 INFO L268 CegarLoopResult]: For program point L35(lines 35 46) no Hoare annotation was computed. [2020-08-18 17:13:24,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 05:13:24 BoogieIcfgContainer [2020-08-18 17:13:24,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 17:13:24,414 INFO L168 Benchmark]: Toolchain (without parser) took 6729.40 ms. Allocated memory was 138.9 MB in the beginning and 233.8 MB in the end (delta: 94.9 MB). Free memory was 101.8 MB in the beginning and 181.0 MB in the end (delta: -79.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2020-08-18 17:13:24,415 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 17:13:24,416 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.61 ms. Allocated memory is still 138.9 MB. Free memory was 101.6 MB in the beginning and 91.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-08-18 17:13:24,417 INFO L168 Benchmark]: Boogie Preprocessor took 109.32 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 91.7 MB in the beginning and 180.3 MB in the end (delta: -88.6 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-08-18 17:13:24,418 INFO L168 Benchmark]: RCFGBuilder took 292.45 ms. Allocated memory is still 201.9 MB. Free memory was 180.3 MB in the beginning and 167.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-08-18 17:13:24,419 INFO L168 Benchmark]: TraceAbstraction took 6047.99 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 166.4 MB in the beginning and 181.0 MB in the end (delta: -14.5 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. [2020-08-18 17:13:24,423 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 262.61 ms. Allocated memory is still 138.9 MB. Free memory was 101.6 MB in the beginning and 91.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.32 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 91.7 MB in the beginning and 180.3 MB in the end (delta: -88.6 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 292.45 ms. Allocated memory is still 201.9 MB. Free memory was 180.3 MB in the beginning and 167.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6047.99 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 166.4 MB in the beginning and 181.0 MB in the end (delta: -14.5 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 61]: 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: 8]: Loop Invariant Derived loop invariant: ((\old(__return_107) == __return_107 && main__y / 4294967296 <= 0) && 1 <= main__y) || (2863311531 * main__x <= 12297829383904690176 * (main__x / 4294967296) + 8589934592 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + 12297829383904690176 * ((main__x / 4294967296 * -4294967296 + (main__x / 4294967296 * -4294967296 + main__x) / 3 * -3 + main__x) / 4294967296) + 1431655765 && \old(__return_107) == __return_107) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 58 SDtfs, 65 SDslu, 34 SDs, 0 SdLazy, 87 SolverSat, 11 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=2, 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, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 73 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 36 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 3516 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 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...