/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:01:15,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:01:15,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:01:15,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 23:01:15,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 23:01:15,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 23:01:15,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 23:01:15,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 23:01:15,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 23:01:15,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 23:01:15,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 23:01:15,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 23:01:15,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 23:01:15,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 23:01:15,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 23:01:15,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 23:01:15,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 23:01:15,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 23:01:15,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 23:01:15,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 23:01:15,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 23:01:15,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 23:01:15,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 23:01:15,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 23:01:15,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-23 23:01:15,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-23 23:01:15,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-23 23:01:15,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-23 23:01:15,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-23 23:01:15,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-23 23:01:15,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-23 23:01:15,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-23 23:01:15,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-23 23:01:15,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-23 23:01:15,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-23 23:01:15,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-23 23:01:15,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-23 23:01:15,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-23 23:01:15,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 23:01:15,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 23:01:15,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 23:01:15,489 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-23 23:01:15,514 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:01:15,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:01:15,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:01:15,515 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:01:15,515 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:01:15,515 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:01:15,516 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:01:15,516 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:01:15,516 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:01:15,516 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:01:15,516 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:01:15,516 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:01:15,517 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:01:15,517 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:01:15,517 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:01:15,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:01:15,518 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:01:15,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:01:15,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:01:15,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:01:15,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:01:15,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:01:15,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:01:15,519 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:01:15,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:01:15,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:01:15,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:01:15,520 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:01:15,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:01:15,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:01:15,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:01:15,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:01:15,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:01:15,521 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:01:15,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:01:15,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:01:15,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:01:15,522 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:01:15,804 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:01:15,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:01:15,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:01:15,830 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:01:15,831 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:01:15,831 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2019-11-23 23:01:15,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8661ee95b/65440c6452e042968605b1d3a31b0627/FLAG1240d8717 [2019-11-23 23:01:16,352 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:01:16,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2019-11-23 23:01:16,359 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8661ee95b/65440c6452e042968605b1d3a31b0627/FLAG1240d8717 [2019-11-23 23:01:16,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8661ee95b/65440c6452e042968605b1d3a31b0627 [2019-11-23 23:01:16,749 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 23:01:16,751 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 23:01:16,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 23:01:16,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 23:01:16,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 23:01:16,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:01:16" (1/1) ... [2019-11-23 23:01:16,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c97442d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:16, skipping insertion in model container [2019-11-23 23:01:16,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:01:16" (1/1) ... [2019-11-23 23:01:16,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 23:01:16,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 23:01:16,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:01:16,958 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 23:01:16,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:01:16,997 INFO L208 MainTranslator]: Completed translation [2019-11-23 23:01:16,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:16 WrapperNode [2019-11-23 23:01:16,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 23:01:16,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 23:01:16,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 23:01:16,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 23:01:17,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:16" (1/1) ... [2019-11-23 23:01:17,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:16" (1/1) ... [2019-11-23 23:01:17,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 23:01:17,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 23:01:17,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 23:01:17,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 23:01:17,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:16" (1/1) ... [2019-11-23 23:01:17,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:16" (1/1) ... [2019-11-23 23:01:17,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:16" (1/1) ... [2019-11-23 23:01:17,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:16" (1/1) ... [2019-11-23 23:01:17,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:16" (1/1) ... [2019-11-23 23:01:17,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:16" (1/1) ... [2019-11-23 23:01:17,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:16" (1/1) ... [2019-11-23 23:01:17,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 23:01:17,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 23:01:17,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 23:01:17,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 23:01:17,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:16" (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 [2019-11-23 23:01:17,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 23:01:17,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 23:01:17,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 23:01:17,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 23:01:17,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 23:01:17,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 23:01:17,598 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 23:01:17,599 INFO L284 CfgBuilder]: Removed 15 assume(true) statements. [2019-11-23 23:01:17,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:01:17 BoogieIcfgContainer [2019-11-23 23:01:17,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 23:01:17,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 23:01:17,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 23:01:17,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 23:01:17,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:01:16" (1/3) ... [2019-11-23 23:01:17,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46acd0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:01:17, skipping insertion in model container [2019-11-23 23:01:17,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:01:16" (2/3) ... [2019-11-23 23:01:17,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46acd0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:01:17, skipping insertion in model container [2019-11-23 23:01:17,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:01:17" (3/3) ... [2019-11-23 23:01:17,608 INFO L109 eAbstractionObserver]: Analyzing ICFG sanfoundry_24-1.i [2019-11-23 23:01:17,622 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 23:01:17,629 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-23 23:01:17,639 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-23 23:01:17,664 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 23:01:17,664 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 23:01:17,664 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 23:01:17,664 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 23:01:17,664 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 23:01:17,664 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 23:01:17,665 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 23:01:17,665 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 23:01:17,679 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-11-23 23:01:17,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-23 23:01:17,685 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:01:17,686 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-23 23:01:17,686 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:01:17,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:01:17,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1036043315, now seen corresponding path program 1 times [2019-11-23 23:01:17,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:01:17,703 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573408577] [2019-11-23 23:01:17,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:01:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:01:17,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:01:17,942 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573408577] [2019-11-23 23:01:17,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:01:17,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:01:17,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460187497] [2019-11-23 23:01:17,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:01:17,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:01:17,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:01:17,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:01:17,975 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2019-11-23 23:01:18,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:01:18,100 INFO L93 Difference]: Finished difference Result 50 states and 69 transitions. [2019-11-23 23:01:18,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:01:18,102 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-11-23 23:01:18,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:01:18,116 INFO L225 Difference]: With dead ends: 50 [2019-11-23 23:01:18,116 INFO L226 Difference]: Without dead ends: 31 [2019-11-23 23:01:18,122 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:01:18,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-23 23:01:18,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 18. [2019-11-23 23:01:18,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-23 23:01:18,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-11-23 23:01:18,164 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 6 [2019-11-23 23:01:18,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:01:18,165 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-11-23 23:01:18,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:01:18,165 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-23 23:01:18,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-23 23:01:18,166 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:01:18,166 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:01:18,167 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:01:18,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:01:18,167 INFO L82 PathProgramCache]: Analyzing trace with hash -2108998760, now seen corresponding path program 1 times [2019-11-23 23:01:18,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:01:18,168 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60445563] [2019-11-23 23:01:18,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:01:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:01:18,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 23:01:18,339 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60445563] [2019-11-23 23:01:18,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:01:18,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 23:01:18,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556496306] [2019-11-23 23:01:18,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:01:18,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:01:18,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:01:18,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:01:18,344 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 4 states. [2019-11-23 23:01:18,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:01:18,448 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2019-11-23 23:01:18,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 23:01:18,449 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-23 23:01:18,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:01:18,449 INFO L225 Difference]: With dead ends: 24 [2019-11-23 23:01:18,450 INFO L226 Difference]: Without dead ends: 22 [2019-11-23 23:01:18,451 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 23:01:18,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-23 23:01:18,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 16. [2019-11-23 23:01:18,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-23 23:01:18,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2019-11-23 23:01:18,455 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 7 [2019-11-23 23:01:18,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:01:18,455 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2019-11-23 23:01:18,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:01:18,456 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2019-11-23 23:01:18,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-23 23:01:18,456 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:01:18,456 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:01:18,457 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:01:18,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:01:18,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1942167699, now seen corresponding path program 1 times [2019-11-23 23:01:18,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:01:18,458 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338828779] [2019-11-23 23:01:18,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:01:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:01:18,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-23 23:01:18,563 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338828779] [2019-11-23 23:01:18,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:01:18,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 23:01:18,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654607646] [2019-11-23 23:01:18,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:01:18,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:01:18,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:01:18,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:01:18,565 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand 4 states. [2019-11-23 23:01:18,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:01:18,638 INFO L93 Difference]: Finished difference Result 22 states and 29 transitions. [2019-11-23 23:01:18,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 23:01:18,639 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-23 23:01:18,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:01:18,639 INFO L225 Difference]: With dead ends: 22 [2019-11-23 23:01:18,640 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 23:01:18,640 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 23:01:18,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 23:01:18,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 23:01:18,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 23:01:18,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 23:01:18,642 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-23 23:01:18,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:01:18,642 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 23:01:18,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:01:18,642 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 23:01:18,642 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 23:01:18,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 23:01:18,662 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2019-11-23 23:01:18,662 INFO L444 ceAbstractionStarter]: For program point L23(lines 23 26) no Hoare annotation was computed. [2019-11-23 23:01:18,663 INFO L444 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2019-11-23 23:01:18,663 INFO L444 ceAbstractionStarter]: For program point L3-1(line 3) no Hoare annotation was computed. [2019-11-23 23:01:18,663 INFO L444 ceAbstractionStarter]: For program point L3-3(lines 1 36) no Hoare annotation was computed. [2019-11-23 23:01:18,663 INFO L444 ceAbstractionStarter]: For program point L3-4(line 3) no Hoare annotation was computed. [2019-11-23 23:01:18,663 INFO L444 ceAbstractionStarter]: For program point L3-5(line 3) no Hoare annotation was computed. [2019-11-23 23:01:18,663 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 23:01:18,664 INFO L444 ceAbstractionStarter]: For program point L3-7(lines 1 36) no Hoare annotation was computed. [2019-11-23 23:01:18,664 INFO L444 ceAbstractionStarter]: For program point L28-2(lines 28 34) no Hoare annotation was computed. [2019-11-23 23:01:18,664 INFO L447 ceAbstractionStarter]: At program point L28-3(lines 28 34) the Hoare annotation is: true [2019-11-23 23:01:18,664 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2019-11-23 23:01:18,664 INFO L447 ceAbstractionStarter]: At program point L16-3(lines 16 19) the Hoare annotation is: true [2019-11-23 23:01:18,665 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 23:01:18,665 INFO L444 ceAbstractionStarter]: For program point L21-2(lines 21 27) no Hoare annotation was computed. [2019-11-23 23:01:18,665 INFO L447 ceAbstractionStarter]: At program point L21-3(lines 21 27) the Hoare annotation is: true [2019-11-23 23:01:18,665 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 33) no Hoare annotation was computed. [2019-11-23 23:01:18,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:01:18 BoogieIcfgContainer [2019-11-23 23:01:18,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 23:01:18,677 INFO L168 Benchmark]: Toolchain (without parser) took 1924.67 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 99.9 MB in the beginning and 97.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 66.9 MB. Max. memory is 7.1 GB. [2019-11-23 23:01:18,678 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 135.3 MB. Free memory is still 118.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-23 23:01:18,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.80 ms. Allocated memory is still 135.3 MB. Free memory was 99.7 MB in the beginning and 89.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-11-23 23:01:18,680 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.83 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 89.6 MB in the beginning and 178.1 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2019-11-23 23:01:18,681 INFO L168 Benchmark]: Boogie Preprocessor took 26.96 ms. Allocated memory is still 199.8 MB. Free memory was 178.1 MB in the beginning and 176.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-11-23 23:01:18,681 INFO L168 Benchmark]: RCFGBuilder took 447.82 ms. Allocated memory is still 199.8 MB. Free memory was 176.2 MB in the beginning and 156.3 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-11-23 23:01:18,682 INFO L168 Benchmark]: TraceAbstraction took 1072.58 ms. Allocated memory is still 199.8 MB. Free memory was 155.6 MB in the beginning and 97.5 MB in the end (delta: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 7.1 GB. [2019-11-23 23:01:18,687 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 135.3 MB. Free memory is still 118.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 245.80 ms. Allocated memory is still 135.3 MB. Free memory was 99.7 MB in the beginning and 89.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 126.83 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 89.6 MB in the beginning and 178.1 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.96 ms. Allocated memory is still 199.8 MB. Free memory was 178.1 MB in the beginning and 176.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 447.82 ms. Allocated memory is still 199.8 MB. Free memory was 176.2 MB in the beginning and 156.3 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1072.58 ms. Allocated memory is still 199.8 MB. Free memory was 155.6 MB in the beginning and 97.5 MB in the end (delta: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 2 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 35 SDslu, 51 SDs, 0 SdLazy, 78 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=1, 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, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 11 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 463 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...