./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/gcd01-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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-numeric/gcd01-2.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 60bddbffe1e2002d3081296e00d2a4e7e030158e .......................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:52:37,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:52:37,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:52:37,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:52:37,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:52:37,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:52:37,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:52:37,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:52:37,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:52:37,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:52:37,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:52:37,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:52:37,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:52:37,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:52:37,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:52:37,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:52:37,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:52:37,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:52:37,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:52:37,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:52:37,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:52:37,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:52:37,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:52:37,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:52:37,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:52:37,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:52:37,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:52:37,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:52:37,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:52:37,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:52:37,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:52:37,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:52:37,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:52:37,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:52:37,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:52:37,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:52:37,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:52:37,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:52:37,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:52:37,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:52:37,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:52:37,198 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 02:52:37,237 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:52:37,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:52:37,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:52:37,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:52:37,243 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:52:37,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:52:37,244 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:52:37,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:52:37,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:52:37,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 02:52:37,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:52:37,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 02:52:37,247 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 02:52:37,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:52:37,249 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:52:37,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 02:52:37,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:52:37,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:52:37,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:52:37,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:52:37,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:52:37,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:52:37,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:52:37,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 02:52:37,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:52:37,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:52:37,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 02:52:37,251 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 -> 60bddbffe1e2002d3081296e00d2a4e7e030158e [2019-11-28 02:52:37,589 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:52:37,602 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:52:37,606 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:52:37,608 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:52:37,608 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:52:37,609 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/gcd01-2.c [2019-11-28 02:52:37,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d93a7c4a9/aeed4240634742aab94edcfefa94d673/FLAG875445553 [2019-11-28 02:52:38,102 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:52:38,106 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/gcd01-2.c [2019-11-28 02:52:38,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d93a7c4a9/aeed4240634742aab94edcfefa94d673/FLAG875445553 [2019-11-28 02:52:38,457 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d93a7c4a9/aeed4240634742aab94edcfefa94d673 [2019-11-28 02:52:38,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:52:38,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:52:38,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:52:38,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:52:38,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:52:38,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:52:38" (1/1) ... [2019-11-28 02:52:38,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4f4d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:38, skipping insertion in model container [2019-11-28 02:52:38,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:52:38" (1/1) ... [2019-11-28 02:52:38,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:52:38,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:52:38,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:52:38,693 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:52:38,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:52:38,724 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:52:38,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:38 WrapperNode [2019-11-28 02:52:38,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:52:38,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:52:38,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:52:38,726 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:52:38,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:38" (1/1) ... [2019-11-28 02:52:38,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:38" (1/1) ... [2019-11-28 02:52:38,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:52:38,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:52:38,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:52:38,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:52:38,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:38" (1/1) ... [2019-11-28 02:52:38,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:38" (1/1) ... [2019-11-28 02:52:38,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:38" (1/1) ... [2019-11-28 02:52:38,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:38" (1/1) ... [2019-11-28 02:52:38,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:38" (1/1) ... [2019-11-28 02:52:38,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:38" (1/1) ... [2019-11-28 02:52:38,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:38" (1/1) ... [2019-11-28 02:52:38,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:52:38,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:52:38,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:52:38,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:52:38,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:38" (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 [2019-11-28 02:52:38,890 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2019-11-28 02:52:38,890 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2019-11-28 02:52:38,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:52:38,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:52:39,099 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:52:39,099 INFO L297 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 02:52:39,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:52:39 BoogieIcfgContainer [2019-11-28 02:52:39,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:52:39,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:52:39,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:52:39,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:52:39,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:52:38" (1/3) ... [2019-11-28 02:52:39,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ceab4e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:52:39, skipping insertion in model container [2019-11-28 02:52:39,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:38" (2/3) ... [2019-11-28 02:52:39,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ceab4e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:52:39, skipping insertion in model container [2019-11-28 02:52:39,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:52:39" (3/3) ... [2019-11-28 02:52:39,108 INFO L109 eAbstractionObserver]: Analyzing ICFG gcd01-2.c [2019-11-28 02:52:39,117 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:52:39,123 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-28 02:52:39,135 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 02:52:39,161 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:52:39,161 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 02:52:39,161 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:52:39,162 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:52:39,162 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:52:39,162 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:52:39,162 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:52:39,162 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:52:39,179 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-28 02:52:39,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 02:52:39,184 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:52:39,185 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:52:39,186 INFO L410 AbstractCegarLoop]: === Iteration 1 === [gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:52:39,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:52:39,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1793788466, now seen corresponding path program 1 times [2019-11-28 02:52:39,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:52:39,197 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339558060] [2019-11-28 02:52:39,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:52:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:52:39,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:52:39,403 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339558060] [2019-11-28 02:52:39,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:52:39,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 02:52:39,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297824548] [2019-11-28 02:52:39,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:52:39,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:52:39,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:52:39,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:52:39,436 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 6 states. [2019-11-28 02:52:39,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:52:39,657 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2019-11-28 02:52:39,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 02:52:39,659 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-11-28 02:52:39,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:52:39,669 INFO L225 Difference]: With dead ends: 36 [2019-11-28 02:52:39,670 INFO L226 Difference]: Without dead ends: 16 [2019-11-28 02:52:39,674 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:52:39,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-28 02:52:39,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-28 02:52:39,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-28 02:52:39,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2019-11-28 02:52:39,715 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 9 [2019-11-28 02:52:39,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:52:39,715 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2019-11-28 02:52:39,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:52:39,716 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-11-28 02:52:39,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 02:52:39,717 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:52:39,717 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:52:39,718 INFO L410 AbstractCegarLoop]: === Iteration 2 === [gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:52:39,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:52:39,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1793788690, now seen corresponding path program 1 times [2019-11-28 02:52:39,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:52:39,719 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983210530] [2019-11-28 02:52:39,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:52:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:52:39,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:52:39,801 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983210530] [2019-11-28 02:52:39,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:52:39,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 02:52:39,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951821421] [2019-11-28 02:52:39,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:52:39,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:52:39,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:52:39,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:52:39,807 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 6 states. [2019-11-28 02:52:39,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:52:39,892 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-11-28 02:52:39,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 02:52:39,893 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-11-28 02:52:39,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:52:39,893 INFO L225 Difference]: With dead ends: 16 [2019-11-28 02:52:39,894 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 02:52:39,896 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:52:39,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 02:52:39,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 02:52:39,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 02:52:39,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 02:52:39,897 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-11-28 02:52:39,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:52:39,898 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:52:39,899 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:52:39,899 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 02:52:39,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 02:52:39,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 02:52:40,064 INFO L246 CegarLoopResult]: For program point gcdFINAL(lines 15 26) no Hoare annotation was computed. [2019-11-28 02:52:40,065 INFO L246 CegarLoopResult]: For program point gcdEXIT(lines 15 26) no Hoare annotation was computed. [2019-11-28 02:52:40,065 INFO L246 CegarLoopResult]: For program point gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-28 02:52:40,065 INFO L246 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2019-11-28 02:52:40,065 INFO L246 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2019-11-28 02:52:40,065 INFO L249 CegarLoopResult]: At program point gcdENTRY(lines 15 26) the Hoare annotation is: true [2019-11-28 02:52:40,066 INFO L246 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2019-11-28 02:52:40,066 INFO L242 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: (or (not (<= |gcd_#in~y1| 2147483647)) (and (<= gcd_~y2 (+ gcd_~y1 2147483646)) (<= gcd_~y2 2147483647) (<= gcd_~y1 2147483647) (<= gcd_~y1 (+ gcd_~y2 2147483646))) (not (<= |gcd_#in~y2| 2147483647))) [2019-11-28 02:52:40,066 INFO L246 CegarLoopResult]: For program point L22(lines 22 24) no Hoare annotation was computed. [2019-11-28 02:52:40,066 INFO L246 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2019-11-28 02:52:40,066 INFO L246 CegarLoopResult]: For program point L25-3(line 25) no Hoare annotation was computed. [2019-11-28 02:52:40,067 INFO L242 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (or (not (<= |gcd_#in~y1| 2147483647)) (and (<= gcd_~y2 (+ gcd_~y1 2147483646)) (<= gcd_~y2 2147483647) (<= gcd_~y1 2147483647) (<= gcd_~y1 (+ gcd_~y2 2147483646))) (not (<= |gcd_#in~y2| 2147483647))) [2019-11-28 02:52:40,067 INFO L246 CegarLoopResult]: For program point gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2019-11-28 02:52:40,067 INFO L246 CegarLoopResult]: For program point L23-3(line 23) no Hoare annotation was computed. [2019-11-28 02:52:40,067 INFO L246 CegarLoopResult]: For program point L19(lines 19 21) no Hoare annotation was computed. [2019-11-28 02:52:40,068 INFO L246 CegarLoopResult]: For program point gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2019-11-28 02:52:40,068 INFO L246 CegarLoopResult]: For program point gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-28 02:52:40,068 INFO L246 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2019-11-28 02:52:40,068 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 02:52:40,068 INFO L246 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2019-11-28 02:52:40,069 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 02:52:40,069 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 02:52:40,069 INFO L249 CegarLoopResult]: At program point L41(lines 28 43) the Hoare annotation is: true [2019-11-28 02:52:40,069 INFO L246 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2019-11-28 02:52:40,069 INFO L246 CegarLoopResult]: For program point L38(lines 38 42) no Hoare annotation was computed. [2019-11-28 02:52:40,070 INFO L242 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (and (<= ULTIMATE.start_main_~n~0 2147483647) (<= ULTIMATE.start_main_~m~0 2147483647)) [2019-11-28 02:52:40,070 INFO L246 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2019-11-28 02:52:40,070 INFO L246 CegarLoopResult]: For program point L34(lines 34 36) no Hoare annotation was computed. [2019-11-28 02:52:40,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:52:40 BoogieIcfgContainer [2019-11-28 02:52:40,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:52:40,083 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:52:40,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:52:40,084 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:52:40,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:52:39" (3/4) ... [2019-11-28 02:52:40,096 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 02:52:40,101 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure gcd [2019-11-28 02:52:40,106 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 02:52:40,107 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 02:52:40,162 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:52:40,162 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:52:40,165 INFO L168 Benchmark]: Toolchain (without parser) took 1702.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 960.3 MB in the beginning and 996.7 MB in the end (delta: -36.3 MB). Peak memory consumption was 59.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:40,165 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:52:40,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.90 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:40,167 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -142.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:40,167 INFO L168 Benchmark]: Boogie Preprocessor took 18.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:40,168 INFO L168 Benchmark]: RCFGBuilder took 265.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:40,168 INFO L168 Benchmark]: TraceAbstraction took 981.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.0 MB). Peak memory consumption was 69.0 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:40,169 INFO L168 Benchmark]: Witness Printer took 78.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 996.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:40,173 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 262.90 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 90.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -142.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 265.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 981.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.0 MB). Peak memory consumption was 69.0 MB. Max. memory is 11.5 GB. * Witness Printer took 78.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 996.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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: 25]: 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: 28]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 4 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 20 SDtfs, 70 SDslu, 44 SDs, 0 SdLazy, 96 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 11 PreInvPairs, 13 NumberOfFragments, 61 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 464 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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...