./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:23:11,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:23:11,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:23:11,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:23:11,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:23:11,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:23:11,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:23:11,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:23:11,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:23:11,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:23:11,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:23:11,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:23:11,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:23:11,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:23:11,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:23:11,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:23:11,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:23:11,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:23:11,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:23:11,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:23:11,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:23:11,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:23:11,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:23:11,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:23:11,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:23:11,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:23:11,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:23:11,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:23:11,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:23:11,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:23:11,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:23:11,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:23:11,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:23:11,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:23:11,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:23:11,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:23:11,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:23:11,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:23:11,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:23:11,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:23:11,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:23:11,173 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-20 06:23:11,193 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:23:11,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:23:11,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:23:11,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:23:11,195 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:23:11,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:23:11,196 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:23:11,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:23:11,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:23:11,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 06:23:11,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:23:11,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 06:23:11,197 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-20 06:23:11,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:23:11,198 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:23:11,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 06:23:11,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:23:11,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:23:11,199 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:23:11,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:23:11,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:23:11,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:23:11,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:23:11,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 06:23:11,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:23:11,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:23:11,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 06:23:11,201 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:23:11,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 [2020-10-20 06:23:11,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:23:11,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:23:11,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:23:11,433 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:23:11,434 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:23:11,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2020-10-20 06:23:11,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1e0ebeb6/ea7819ed4e1a488b8ebd7734af421c6b/FLAG7868f0c24 [2020-10-20 06:23:11,938 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:23:11,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2020-10-20 06:23:11,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1e0ebeb6/ea7819ed4e1a488b8ebd7734af421c6b/FLAG7868f0c24 [2020-10-20 06:23:12,338 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1e0ebeb6/ea7819ed4e1a488b8ebd7734af421c6b [2020-10-20 06:23:12,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:23:12,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:23:12,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:23:12,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:23:12,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:23:12,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:23:12" (1/1) ... [2020-10-20 06:23:12,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46638ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:12, skipping insertion in model container [2020-10-20 06:23:12,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:23:12" (1/1) ... [2020-10-20 06:23:12,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:23:12,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:23:12,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:23:12,628 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:23:12,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:23:12,653 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:23:12,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:12 WrapperNode [2020-10-20 06:23:12,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:23:12,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:23:12,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:23:12,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:23:12,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:12" (1/1) ... [2020-10-20 06:23:12,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:12" (1/1) ... [2020-10-20 06:23:12,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:23:12,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:23:12,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:23:12,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:23:12,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:12" (1/1) ... [2020-10-20 06:23:12,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:12" (1/1) ... [2020-10-20 06:23:12,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:12" (1/1) ... [2020-10-20 06:23:12,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:12" (1/1) ... [2020-10-20 06:23:12,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:12" (1/1) ... [2020-10-20 06:23:12,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:12" (1/1) ... [2020-10-20 06:23:12,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:12" (1/1) ... [2020-10-20 06:23:12,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:23:12,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:23:12,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:23:12,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:23:12,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:12" (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 [2020-10-20 06:23:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:23:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:23:12,941 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:23:12,942 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 06:23:12,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:23:12 BoogieIcfgContainer [2020-10-20 06:23:12,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:23:12,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:23:12,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:23:12,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:23:12,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:23:12" (1/3) ... [2020-10-20 06:23:12,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581b893c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:23:12, skipping insertion in model container [2020-10-20 06:23:12,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:12" (2/3) ... [2020-10-20 06:23:12,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581b893c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:23:12, skipping insertion in model container [2020-10-20 06:23:12,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:23:12" (3/3) ... [2020-10-20 06:23:12,953 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-loops.c [2020-10-20 06:23:12,965 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:23:12,972 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-20 06:23:12,986 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 06:23:13,020 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:23:13,021 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 06:23:13,021 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:23:13,022 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:23:13,022 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:23:13,022 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:23:13,023 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:23:13,023 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:23:13,042 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-10-20 06:23:13,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-20 06:23:13,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:23:13,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-20 06:23:13,052 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:23:13,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:23:13,058 INFO L82 PathProgramCache]: Analyzing trace with hash 29685419, now seen corresponding path program 1 times [2020-10-20 06:23:13,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:23:13,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319741904] [2020-10-20 06:23:13,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:23:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:23:13,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:23:13,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319741904] [2020-10-20 06:23:13,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:23:13,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:23:13,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177174328] [2020-10-20 06:23:13,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:23:13,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:23:13,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:23:13,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:23:13,264 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2020-10-20 06:23:13,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:23:13,311 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2020-10-20 06:23:13,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:23:13,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-20 06:23:13,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:23:13,323 INFO L225 Difference]: With dead ends: 35 [2020-10-20 06:23:13,324 INFO L226 Difference]: Without dead ends: 12 [2020-10-20 06:23:13,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:23:13,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-20 06:23:13,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-20 06:23:13,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-20 06:23:13,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-10-20 06:23:13,358 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2020-10-20 06:23:13,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:23:13,359 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-10-20 06:23:13,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:23:13,359 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-10-20 06:23:13,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-20 06:23:13,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:23:13,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:23:13,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:23:13,360 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:23:13,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:23:13,361 INFO L82 PathProgramCache]: Analyzing trace with hash 920230376, now seen corresponding path program 1 times [2020-10-20 06:23:13,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:23:13,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30358629] [2020-10-20 06:23:13,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:23:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:23:13,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:23:13,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30358629] [2020-10-20 06:23:13,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:23:13,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:23:13,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129257614] [2020-10-20 06:23:13,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:23:13,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:23:13,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:23:13,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:23:13,393 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2020-10-20 06:23:13,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:23:13,426 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2020-10-20 06:23:13,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:23:13,427 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-20 06:23:13,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:23:13,428 INFO L225 Difference]: With dead ends: 20 [2020-10-20 06:23:13,428 INFO L226 Difference]: Without dead ends: 19 [2020-10-20 06:23:13,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:23:13,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-20 06:23:13,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2020-10-20 06:23:13,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-20 06:23:13,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2020-10-20 06:23:13,440 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 6 [2020-10-20 06:23:13,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:23:13,441 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2020-10-20 06:23:13,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:23:13,441 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2020-10-20 06:23:13,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-20 06:23:13,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:23:13,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:23:13,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:23:13,446 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:23:13,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:23:13,446 INFO L82 PathProgramCache]: Analyzing trace with hash 920248058, now seen corresponding path program 1 times [2020-10-20 06:23:13,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:23:13,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54536132] [2020-10-20 06:23:13,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:23:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:23:13,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:23:13,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54536132] [2020-10-20 06:23:13,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:23:13,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:23:13,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795782243] [2020-10-20 06:23:13,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:23:13,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:23:13,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:23:13,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:23:13,473 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand 3 states. [2020-10-20 06:23:13,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:23:13,494 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2020-10-20 06:23:13,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:23:13,495 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-20 06:23:13,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:23:13,495 INFO L225 Difference]: With dead ends: 15 [2020-10-20 06:23:13,495 INFO L226 Difference]: Without dead ends: 14 [2020-10-20 06:23:13,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:23:13,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-10-20 06:23:13,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2020-10-20 06:23:13,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-20 06:23:13,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-10-20 06:23:13,500 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 6 [2020-10-20 06:23:13,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:23:13,501 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-20 06:23:13,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:23:13,501 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-10-20 06:23:13,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:23:13,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:23:13,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:23:13,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 06:23:13,502 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:23:13,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:23:13,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1537629357, now seen corresponding path program 1 times [2020-10-20 06:23:13,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:23:13,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010286872] [2020-10-20 06:23:13,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:23:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:23:13,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:23:13,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010286872] [2020-10-20 06:23:13,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:23:13,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:23:13,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567000151] [2020-10-20 06:23:13,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:23:13,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:23:13,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:23:13,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:23:13,529 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 3 states. [2020-10-20 06:23:13,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:23:13,547 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2020-10-20 06:23:13,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:23:13,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-20 06:23:13,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:23:13,549 INFO L225 Difference]: With dead ends: 14 [2020-10-20 06:23:13,549 INFO L226 Difference]: Without dead ends: 13 [2020-10-20 06:23:13,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:23:13,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-10-20 06:23:13,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-10-20 06:23:13,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-20 06:23:13,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2020-10-20 06:23:13,554 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 15 transitions. Word has length 7 [2020-10-20 06:23:13,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:23:13,554 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-10-20 06:23:13,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:23:13,554 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2020-10-20 06:23:13,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 06:23:13,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:23:13,555 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:23:13,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 06:23:13,555 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:23:13,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:23:13,556 INFO L82 PathProgramCache]: Analyzing trace with hash -193060491, now seen corresponding path program 1 times [2020-10-20 06:23:13,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:23:13,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572839643] [2020-10-20 06:23:13,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:23:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:23:13,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:23:13,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572839643] [2020-10-20 06:23:13,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970118031] [2020-10-20 06:23:13,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:23:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:23:13,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 06:23:13,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:23:13,696 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:23:13,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:23:13,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-10-20 06:23:13,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389031627] [2020-10-20 06:23:13,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:23:13,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:23:13,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:23:13,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:23:13,699 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand 4 states. [2020-10-20 06:23:13,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:23:13,735 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2020-10-20 06:23:13,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:23:13,736 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-20 06:23:13,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:23:13,736 INFO L225 Difference]: With dead ends: 23 [2020-10-20 06:23:13,737 INFO L226 Difference]: Without dead ends: 22 [2020-10-20 06:23:13,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:23:13,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-20 06:23:13,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2020-10-20 06:23:13,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-20 06:23:13,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2020-10-20 06:23:13,743 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 9 [2020-10-20 06:23:13,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:23:13,743 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-10-20 06:23:13,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:23:13,744 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2020-10-20 06:23:13,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 06:23:13,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:23:13,745 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1] [2020-10-20 06:23:13,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:23:13,956 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:23:13,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:23:13,956 INFO L82 PathProgramCache]: Analyzing trace with hash -503819576, now seen corresponding path program 2 times [2020-10-20 06:23:13,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:23:13,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532435543] [2020-10-20 06:23:13,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:23:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:23:13,993 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-20 06:23:13,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532435543] [2020-10-20 06:23:13,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161066982] [2020-10-20 06:23:13,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:23:14,026 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-20 06:23:14,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:23:14,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 06:23:14,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:23:14,034 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-20 06:23:14,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:23:14,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-10-20 06:23:14,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232379337] [2020-10-20 06:23:14,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:23:14,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:23:14,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:23:14,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:23:14,036 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand 4 states. [2020-10-20 06:23:14,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:23:14,083 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2020-10-20 06:23:14,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:23:14,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-20 06:23:14,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:23:14,084 INFO L225 Difference]: With dead ends: 18 [2020-10-20 06:23:14,084 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 06:23:14,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:23:14,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 06:23:14,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 06:23:14,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 06:23:14,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 06:23:14,085 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-20 06:23:14,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:23:14,086 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:23:14,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:23:14,086 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:23:14,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 06:23:14,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:23:14,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 06:23:14,378 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2020-10-20 06:23:14,378 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 06:23:14,378 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2020-10-20 06:23:14,378 INFO L277 CegarLoopResult]: At program point L29(lines 13 30) the Hoare annotation is: true [2020-10-20 06:23:14,379 INFO L274 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-10-20 06:23:14,379 INFO L274 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-10-20 06:23:14,379 INFO L274 CegarLoopResult]: For program point L21(lines 21 25) no Hoare annotation was computed. [2020-10-20 06:23:14,379 INFO L274 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-10-20 06:23:14,379 INFO L270 CegarLoopResult]: At program point L19-2(lines 19 27) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 1073741823) [2020-10-20 06:23:14,379 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2020-10-20 06:23:14,379 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2020-10-20 06:23:14,380 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 06:23:14,380 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 06:23:14,380 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-10-20 06:23:14,381 INFO L270 CegarLoopResult]: At program point L22-2(lines 22 24) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 1073741823) (<= 0 ULTIMATE.start_main_~x~0)) [2020-10-20 06:23:14,381 INFO L274 CegarLoopResult]: For program point L18(lines 18 28) no Hoare annotation was computed. [2020-10-20 06:23:14,381 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 28) no Hoare annotation was computed. [2020-10-20 06:23:14,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:23:14 BoogieIcfgContainer [2020-10-20 06:23:14,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:23:14,398 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:23:14,398 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:23:14,399 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:23:14,399 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:23:12" (3/4) ... [2020-10-20 06:23:14,402 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 06:23:14,413 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-20 06:23:14,413 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 06:23:14,457 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:23:14,457 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:23:14,459 INFO L168 Benchmark]: Toolchain (without parser) took 2115.20 ms. Allocated memory was 34.6 MB in the beginning and 49.3 MB in the end (delta: 14.7 MB). Free memory was 16.0 MB in the beginning and 21.0 MB in the end (delta: -5.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:23:14,460 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 33.0 MB. Free memory was 10.6 MB in the beginning and 10.6 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-20 06:23:14,461 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.69 ms. Allocated memory was 34.6 MB in the beginning and 44.0 MB in the end (delta: 9.4 MB). Free memory was 15.1 MB in the beginning and 26.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:23:14,462 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.49 ms. Allocated memory is still 44.0 MB. Free memory was 26.3 MB in the beginning and 24.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:23:14,462 INFO L168 Benchmark]: Boogie Preprocessor took 20.06 ms. Allocated memory is still 44.0 MB. Free memory was 24.9 MB in the beginning and 23.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:23:14,463 INFO L168 Benchmark]: RCFGBuilder took 236.88 ms. Allocated memory was 44.0 MB in the beginning and 45.6 MB in the end (delta: 1.6 MB). Free memory was 23.7 MB in the beginning and 24.2 MB in the end (delta: -474.2 kB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:23:14,464 INFO L168 Benchmark]: TraceAbstraction took 1452.76 ms. Allocated memory was 45.6 MB in the beginning and 49.3 MB in the end (delta: 3.7 MB). Free memory was 23.7 MB in the beginning and 24.0 MB in the end (delta: -216.1 kB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:23:14,464 INFO L168 Benchmark]: Witness Printer took 59.09 ms. Allocated memory is still 49.3 MB. Free memory was 23.6 MB in the beginning and 21.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:23:14,469 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 33.0 MB. Free memory was 10.6 MB in the beginning and 10.6 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 304.69 ms. Allocated memory was 34.6 MB in the beginning and 44.0 MB in the end (delta: 9.4 MB). Free memory was 15.1 MB in the beginning and 26.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 31.49 ms. Allocated memory is still 44.0 MB. Free memory was 26.3 MB in the beginning and 24.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 20.06 ms. Allocated memory is still 44.0 MB. Free memory was 24.9 MB in the beginning and 23.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 236.88 ms. Allocated memory was 44.0 MB in the beginning and 45.6 MB in the end (delta: 1.6 MB). Free memory was 23.7 MB in the beginning and 24.2 MB in the end (delta: -474.2 kB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1452.76 ms. Allocated memory was 45.6 MB in the beginning and 49.3 MB in the end (delta: 3.7 MB). Free memory was 23.7 MB in the beginning and 24.0 MB in the end (delta: -216.1 kB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. * Witness Printer took 59.09 ms. Allocated memory is still 49.3 MB. Free memory was 23.6 MB in the beginning and 21.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x <= 1073741823 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (1 <= y && x <= 1073741823) && 0 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 52 SDslu, 15 SDs, 0 SdLazy, 75 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 14 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 14 HoareAnnotationTreeSize, 3 FomulaSimplifications, 391 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 66 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 1246 SizeOfPredicates, 1 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 10/18 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...