./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/psyco/psyco_math_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/psyco/psyco_math_1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8b21ad1baeb92c3a8a2023c182a4742236703971 .................................................................................................................................................................................................................................................................................................................................... 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 00:00:40,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:00:40,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:00:40,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:00:40,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:00:40,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:00:40,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:00:40,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:00:40,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:00:40,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:00:40,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:00:40,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:00:40,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:00:40,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:00:40,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:00:40,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:00:40,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:00:40,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:00:40,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:00:40,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:00:40,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:00:40,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:00:40,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:00:40,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:00:40,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:00:40,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:00:40,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:00:40,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:00:40,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:00:40,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:00:40,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:00:40,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:00:40,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:00:40,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:00:40,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:00:40,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:00:40,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:00:40,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:00:40,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:00:40,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:00:40,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:00:40,873 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:00:40,925 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:00:40,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:00:40,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:00:40,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:00:40,930 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:00:40,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:00:40,931 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:00:40,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:00:40,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:00:40,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:00:40,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:00:40,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:00:40,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:00:40,934 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:00:40,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:00:40,934 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:00:40,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:00:40,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:00:40,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:00:40,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:00:40,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:00:40,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:00:40,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:00:40,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:00:40,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:00:40,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:00:40,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:00:40,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:00:40,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:00:40,938 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 ! call(reach_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b21ad1baeb92c3a8a2023c182a4742236703971 [2020-10-20 00:00:41,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:00:41,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:00:41,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:00:41,181 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:00:41,181 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:00:41,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_math_1.c [2020-10-20 00:00:41,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2eb53247/1ba13876235847abaed8631c38f51922/FLAG77ab7b1b3 [2020-10-20 00:00:41,765 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:00:41,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_math_1.c [2020-10-20 00:00:41,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2eb53247/1ba13876235847abaed8631c38f51922/FLAG77ab7b1b3 [2020-10-20 00:00:42,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2eb53247/1ba13876235847abaed8631c38f51922 [2020-10-20 00:00:42,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:00:42,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:00:42,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:00:42,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:00:42,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:00:42,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:00:42" (1/1) ... [2020-10-20 00:00:42,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@291c52a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:00:42, skipping insertion in model container [2020-10-20 00:00:42,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:00:42" (1/1) ... [2020-10-20 00:00:42,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:00:42,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:00:42,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:00:42,464 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:00:42,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:00:42,523 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:00:42,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:00:42 WrapperNode [2020-10-20 00:00:42,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:00:42,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:00:42,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:00:42,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:00:42,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:00:42" (1/1) ... [2020-10-20 00:00:42,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:00:42" (1/1) ... [2020-10-20 00:00:42,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:00:42,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:00:42,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:00:42,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:00:42,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:00:42" (1/1) ... [2020-10-20 00:00:42,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:00:42" (1/1) ... [2020-10-20 00:00:42,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:00:42" (1/1) ... [2020-10-20 00:00:42,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:00:42" (1/1) ... [2020-10-20 00:00:42,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:00:42" (1/1) ... [2020-10-20 00:00:42,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:00:42" (1/1) ... [2020-10-20 00:00:42,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:00:42" (1/1) ... [2020-10-20 00:00:42,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:00:42,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:00:42,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:00:42,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:00:42,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:00:42" (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 00:00:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:00:42,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:00:42,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:00:42,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:00:43,233 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:00:43,234 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-10-20 00:00:43,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:00:43 BoogieIcfgContainer [2020-10-20 00:00:43,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:00:43,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:00:43,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:00:43,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:00:43,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:00:42" (1/3) ... [2020-10-20 00:00:43,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdca4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:00:43, skipping insertion in model container [2020-10-20 00:00:43,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:00:42" (2/3) ... [2020-10-20 00:00:43,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdca4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:00:43, skipping insertion in model container [2020-10-20 00:00:43,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:00:43" (3/3) ... [2020-10-20 00:00:43,245 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_math_1.c [2020-10-20 00:00:43,256 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:00:43,264 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:00:43,277 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:00:43,303 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:00:43,304 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:00:43,304 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:00:43,304 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:00:43,304 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:00:43,305 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:00:43,305 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:00:43,305 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:00:43,325 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-10-20 00:00:43,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 00:00:43,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:00:43,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:00:43,335 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:00:43,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:00:43,342 INFO L82 PathProgramCache]: Analyzing trace with hash 352571322, now seen corresponding path program 1 times [2020-10-20 00:00:43,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:00:43,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731881975] [2020-10-20 00:00:43,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:00:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:00:43,562 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 00:00:43,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731881975] [2020-10-20 00:00:43,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:00:43,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:00:43,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215509483] [2020-10-20 00:00:43,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:00:43,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:00:43,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:00:43,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:00:43,583 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 2 states. [2020-10-20 00:00:43,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:00:43,610 INFO L93 Difference]: Finished difference Result 134 states and 253 transitions. [2020-10-20 00:00:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:00:43,612 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-20 00:00:43,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:00:43,619 INFO L225 Difference]: With dead ends: 134 [2020-10-20 00:00:43,620 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:00:43,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:00:43,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:00:43,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:00:43,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:00:43,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:00:43,651 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-10-20 00:00:43,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:00:43,652 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:00:43,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:00:43,652 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:00:43,653 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:00:43,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:00:43,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:00:43,684 INFO L274 CegarLoopResult]: For program point L217(lines 217 227) no Hoare annotation was computed. [2020-10-20 00:00:43,685 INFO L274 CegarLoopResult]: For program point L184(lines 184 198) no Hoare annotation was computed. [2020-10-20 00:00:43,685 INFO L274 CegarLoopResult]: For program point L52(lines 52 66) no Hoare annotation was computed. [2020-10-20 00:00:43,685 INFO L274 CegarLoopResult]: For program point L267(lines 267 269) no Hoare annotation was computed. [2020-10-20 00:00:43,685 INFO L274 CegarLoopResult]: For program point L201(lines 201 212) no Hoare annotation was computed. [2020-10-20 00:00:43,685 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:00:43,685 INFO L274 CegarLoopResult]: For program point L251(lines 251 253) no Hoare annotation was computed. [2020-10-20 00:00:43,686 INFO L274 CegarLoopResult]: For program point L119(lines 119 134) no Hoare annotation was computed. [2020-10-20 00:00:43,686 INFO L277 CegarLoopResult]: At program point L20(lines 20 363) the Hoare annotation is: true [2020-10-20 00:00:43,686 INFO L274 CegarLoopResult]: For program point L169(lines 169 183) no Hoare annotation was computed. [2020-10-20 00:00:43,687 INFO L274 CegarLoopResult]: For program point L103(lines 103 118) no Hoare annotation was computed. [2020-10-20 00:00:43,687 INFO L274 CegarLoopResult]: For program point L70(lines 70 137) no Hoare annotation was computed. [2020-10-20 00:00:43,687 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-20 00:00:43,687 INFO L274 CegarLoopResult]: For program point L186(lines 186 196) no Hoare annotation was computed. [2020-10-20 00:00:43,687 INFO L274 CegarLoopResult]: For program point L87(lines 87 102) no Hoare annotation was computed. [2020-10-20 00:00:43,687 INFO L274 CegarLoopResult]: For program point L54(lines 54 64) no Hoare annotation was computed. [2020-10-20 00:00:43,687 INFO L274 CegarLoopResult]: For program point L236(lines 236 238) no Hoare annotation was computed. [2020-10-20 00:00:43,687 INFO L274 CegarLoopResult]: For program point L71(lines 71 86) no Hoare annotation was computed. [2020-10-20 00:00:43,688 INFO L274 CegarLoopResult]: For program point L154(lines 154 168) no Hoare annotation was computed. [2020-10-20 00:00:43,688 INFO L274 CegarLoopResult]: For program point L121(lines 121 132) no Hoare annotation was computed. [2020-10-20 00:00:43,688 INFO L274 CegarLoopResult]: For program point L171(lines 171 181) no Hoare annotation was computed. [2020-10-20 00:00:43,688 INFO L274 CegarLoopResult]: For program point L138(lines 138 355) no Hoare annotation was computed. [2020-10-20 00:00:43,689 INFO L274 CegarLoopResult]: For program point L105(lines 105 116) no Hoare annotation was computed. [2020-10-20 00:00:43,689 INFO L274 CegarLoopResult]: For program point L221(lines 221 223) no Hoare annotation was computed. [2020-10-20 00:00:43,689 INFO L274 CegarLoopResult]: For program point L89(lines 89 100) no Hoare annotation was computed. [2020-10-20 00:00:43,689 INFO L274 CegarLoopResult]: For program point L205(lines 205 207) no Hoare annotation was computed. [2020-10-20 00:00:43,689 INFO L274 CegarLoopResult]: For program point L139(lines 139 153) no Hoare annotation was computed. [2020-10-20 00:00:43,690 INFO L274 CegarLoopResult]: For program point L73(lines 73 84) no Hoare annotation was computed. [2020-10-20 00:00:43,690 INFO L277 CegarLoopResult]: At program point L354(lines 28 358) the Hoare annotation is: true [2020-10-20 00:00:43,690 INFO L274 CegarLoopResult]: For program point L156(lines 156 166) no Hoare annotation was computed. [2020-10-20 00:00:43,690 INFO L274 CegarLoopResult]: For program point L338(lines 338 352) no Hoare annotation was computed. [2020-10-20 00:00:43,691 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:00:43,691 INFO L274 CegarLoopResult]: For program point L190(lines 190 192) no Hoare annotation was computed. [2020-10-20 00:00:43,691 INFO L274 CegarLoopResult]: For program point L58(lines 58 60) no Hoare annotation was computed. [2020-10-20 00:00:43,691 INFO L274 CegarLoopResult]: For program point L141(lines 141 151) no Hoare annotation was computed. [2020-10-20 00:00:43,692 INFO L274 CegarLoopResult]: For program point L323(lines 323 337) no Hoare annotation was computed. [2020-10-20 00:00:43,692 INFO L274 CegarLoopResult]: For program point L125(lines 125 127) no Hoare annotation was computed. [2020-10-20 00:00:43,692 INFO L274 CegarLoopResult]: For program point L340(lines 340 350) no Hoare annotation was computed. [2020-10-20 00:00:43,692 INFO L274 CegarLoopResult]: For program point L307(lines 307 322) no Hoare annotation was computed. [2020-10-20 00:00:43,693 INFO L274 CegarLoopResult]: For program point L175(lines 175 177) no Hoare annotation was computed. [2020-10-20 00:00:43,693 INFO L274 CegarLoopResult]: For program point L109(lines 109 111) no Hoare annotation was computed. [2020-10-20 00:00:43,693 INFO L274 CegarLoopResult]: For program point L291(lines 291 306) no Hoare annotation was computed. [2020-10-20 00:00:43,693 INFO L274 CegarLoopResult]: For program point L93(lines 93 95) no Hoare annotation was computed. [2020-10-20 00:00:43,693 INFO L274 CegarLoopResult]: For program point L77(lines 77 79) no Hoare annotation was computed. [2020-10-20 00:00:43,694 INFO L274 CegarLoopResult]: For program point L325(lines 325 335) no Hoare annotation was computed. [2020-10-20 00:00:43,694 INFO L274 CegarLoopResult]: For program point L160(lines 160 162) no Hoare annotation was computed. [2020-10-20 00:00:43,694 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:00:43,694 INFO L277 CegarLoopResult]: At program point L28-2(lines 28 358) the Hoare annotation is: true [2020-10-20 00:00:43,694 INFO L274 CegarLoopResult]: For program point L28-3(lines 28 358) no Hoare annotation was computed. [2020-10-20 00:00:43,695 INFO L274 CegarLoopResult]: For program point L309(lines 309 320) no Hoare annotation was computed. [2020-10-20 00:00:43,695 INFO L274 CegarLoopResult]: For program point L276(lines 276 290) no Hoare annotation was computed. [2020-10-20 00:00:43,695 INFO L274 CegarLoopResult]: For program point L293(lines 293 304) no Hoare annotation was computed. [2020-10-20 00:00:43,695 INFO L274 CegarLoopResult]: For program point L145(lines 145 147) no Hoare annotation was computed. [2020-10-20 00:00:43,696 INFO L274 CegarLoopResult]: For program point L261(lines 261 275) no Hoare annotation was computed. [2020-10-20 00:00:43,696 INFO L274 CegarLoopResult]: For program point L344(lines 344 346) no Hoare annotation was computed. [2020-10-20 00:00:43,696 INFO L274 CegarLoopResult]: For program point L278(lines 278 288) no Hoare annotation was computed. [2020-10-20 00:00:43,696 INFO L274 CegarLoopResult]: For program point L245(lines 245 260) no Hoare annotation was computed. [2020-10-20 00:00:43,696 INFO L270 CegarLoopResult]: At program point L345(lines 20 363) the Hoare annotation is: false [2020-10-20 00:00:43,697 INFO L274 CegarLoopResult]: For program point L329(lines 329 331) no Hoare annotation was computed. [2020-10-20 00:00:43,697 INFO L274 CegarLoopResult]: For program point L263(lines 263 273) no Hoare annotation was computed. [2020-10-20 00:00:43,697 INFO L274 CegarLoopResult]: For program point L230(lines 230 244) no Hoare annotation was computed. [2020-10-20 00:00:43,697 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:00:43,697 INFO L274 CegarLoopResult]: For program point L313(lines 313 315) no Hoare annotation was computed. [2020-10-20 00:00:43,698 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 00:00:43,698 INFO L274 CegarLoopResult]: For program point L247(lines 247 258) no Hoare annotation was computed. [2020-10-20 00:00:43,698 INFO L274 CegarLoopResult]: For program point L297(lines 297 299) no Hoare annotation was computed. [2020-10-20 00:00:43,698 INFO L274 CegarLoopResult]: For program point L215(lines 215 229) no Hoare annotation was computed. [2020-10-20 00:00:43,699 INFO L274 CegarLoopResult]: For program point L232(lines 232 242) no Hoare annotation was computed. [2020-10-20 00:00:43,699 INFO L274 CegarLoopResult]: For program point L199(lines 199 214) no Hoare annotation was computed. [2020-10-20 00:00:43,699 INFO L274 CegarLoopResult]: For program point L282(lines 282 284) no Hoare annotation was computed. [2020-10-20 00:00:43,699 INFO L274 CegarLoopResult]: For program point L51(lines 51 69) no Hoare annotation was computed. [2020-10-20 00:00:43,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:00:43 BoogieIcfgContainer [2020-10-20 00:00:43,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:00:43,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:00:43,713 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:00:43,713 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:00:43,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:00:43" (3/4) ... [2020-10-20 00:00:43,718 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:00:43,735 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-20 00:00:43,736 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 00:00:43,736 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:00:43,736 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:00:43,796 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:00:43,797 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:00:43,814 INFO L168 Benchmark]: Toolchain (without parser) took 1716.48 ms. Allocated memory was 34.6 MB in the beginning and 49.8 MB in the end (delta: 15.2 MB). Free memory was 6.4 MB in the beginning and 10.3 MB in the end (delta: -3.9 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:00:43,815 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 11.3 MB in the beginning and 11.3 MB in the end (delta: 45.6 kB). Peak memory consumption was 45.6 kB. Max. memory is 14.3 GB. [2020-10-20 00:00:43,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.33 ms. Allocated memory was 37.2 MB in the beginning and 45.1 MB in the end (delta: 7.9 MB). Free memory was 18.8 MB in the beginning and 24.7 MB in the end (delta: -5.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:00:43,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.04 ms. Allocated memory is still 45.1 MB. Free memory was 24.7 MB in the beginning and 22.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:00:43,818 INFO L168 Benchmark]: Boogie Preprocessor took 36.61 ms. Allocated memory is still 45.1 MB. Free memory was 22.2 MB in the beginning and 20.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:00:43,819 INFO L168 Benchmark]: RCFGBuilder took 617.83 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 20.2 MB in the beginning and 20.9 MB in the end (delta: -776.5 kB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:00:43,820 INFO L168 Benchmark]: TraceAbstraction took 475.14 ms. Allocated memory was 47.2 MB in the beginning and 49.8 MB in the end (delta: 2.6 MB). Free memory was 20.6 MB in the beginning and 13.3 MB in the end (delta: 7.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:00:43,821 INFO L168 Benchmark]: Witness Printer took 84.20 ms. Allocated memory is still 49.8 MB. Free memory was 13.3 MB in the beginning and 10.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:00:43,830 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 11.3 MB in the beginning and 11.3 MB in the end (delta: 45.6 kB). Peak memory consumption was 45.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 420.33 ms. Allocated memory was 37.2 MB in the beginning and 45.1 MB in the end (delta: 7.9 MB). Free memory was 18.8 MB in the beginning and 24.7 MB in the end (delta: -5.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 56.04 ms. Allocated memory is still 45.1 MB. Free memory was 24.7 MB in the beginning and 22.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 36.61 ms. Allocated memory is still 45.1 MB. Free memory was 22.2 MB in the beginning and 20.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 617.83 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 20.2 MB in the beginning and 20.9 MB in the end (delta: -776.5 kB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 475.14 ms. Allocated memory was 47.2 MB in the beginning and 49.8 MB in the end (delta: 2.6 MB). Free memory was 20.6 MB in the beginning and 13.3 MB in the end (delta: 7.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. * Witness Printer took 84.20 ms. Allocated memory is still 49.8 MB. Free memory was 13.3 MB in the beginning and 10.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 94 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 7 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...