./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/bitvector/gcd_2_true-unreach-call_true-no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0ed9222f Calling Ultimate with: 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 /storage/repos/svcomp/c/bitvector/gcd_2_true-unreach-call_true-no-overflow.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca12b384c8180063e3f1c5738f7063e9219b0df5 ........................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 01:58:11,029 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 01:58:11,030 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 01:58:11,047 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 01:58:11,048 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 01:58:11,051 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 01:58:11,053 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 01:58:11,056 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 01:58:11,057 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 01:58:11,059 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 01:58:11,060 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 01:58:11,060 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 01:58:11,063 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 01:58:11,064 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 01:58:11,067 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 01:58:11,073 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 01:58:11,074 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 01:58:11,078 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 01:58:11,083 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 01:58:11,086 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 01:58:11,087 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 01:58:11,090 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 01:58:11,093 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 01:58:11,093 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 01:58:11,093 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 01:58:11,096 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 01:58:11,097 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 01:58:11,097 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 01:58:11,098 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 01:58:11,100 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 01:58:11,100 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 01:58:11,102 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 01:58:11,103 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 01:58:11,103 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 01:58:11,104 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 01:58:11,104 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 01:58:11,105 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-01-14 01:58:11,121 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 01:58:11,121 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 01:58:11,123 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 01:58:11,123 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 01:58:11,123 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 01:58:11,123 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 01:58:11,123 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 01:58:11,124 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 01:58:11,124 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 01:58:11,124 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 01:58:11,124 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 01:58:11,124 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 01:58:11,124 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 01:58:11,125 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 01:58:11,125 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-14 01:58:11,125 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 01:58:11,125 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 01:58:11,125 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 01:58:11,125 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 01:58:11,126 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 01:58:11,126 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 01:58:11,126 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 01:58:11,126 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 01:58:11,126 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 01:58:11,127 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 01:58:11,127 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 01:58:11,127 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 01:58:11,127 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 01:58:11,127 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 01:58:11,127 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 01:58:11,127 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca12b384c8180063e3f1c5738f7063e9219b0df5 [2019-01-14 01:58:11,163 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 01:58:11,181 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 01:58:11,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 01:58:11,187 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 01:58:11,187 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 01:58:11,188 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/bitvector/gcd_2_true-unreach-call_true-no-overflow.i [2019-01-14 01:58:11,247 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a485e4eeb/9cd07f0e8edd4314a90a5f3773f2a178/FLAGaeed6b24c [2019-01-14 01:58:11,638 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 01:58:11,639 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/bitvector/gcd_2_true-unreach-call_true-no-overflow.i [2019-01-14 01:58:11,644 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a485e4eeb/9cd07f0e8edd4314a90a5f3773f2a178/FLAGaeed6b24c [2019-01-14 01:58:12,046 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a485e4eeb/9cd07f0e8edd4314a90a5f3773f2a178 [2019-01-14 01:58:12,049 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 01:58:12,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 01:58:12,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 01:58:12,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 01:58:12,055 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 01:58:12,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:58:12" (1/1) ... [2019-01-14 01:58:12,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7290c9a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:58:12, skipping insertion in model container [2019-01-14 01:58:12,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:58:12" (1/1) ... [2019-01-14 01:58:12,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 01:58:12,092 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 01:58:12,308 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:58:12,311 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 01:58:12,327 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:58:12,340 INFO L195 MainTranslator]: Completed translation [2019-01-14 01:58:12,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:58:12 WrapperNode [2019-01-14 01:58:12,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 01:58:12,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 01:58:12,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 01:58:12,341 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 01:58:12,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:58:12" (1/1) ... [2019-01-14 01:58:12,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:58:12" (1/1) ... [2019-01-14 01:58:12,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 01:58:12,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 01:58:12,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 01:58:12,377 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 01:58:12,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:58:12" (1/1) ... [2019-01-14 01:58:12,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:58:12" (1/1) ... [2019-01-14 01:58:12,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:58:12" (1/1) ... [2019-01-14 01:58:12,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:58:12" (1/1) ... [2019-01-14 01:58:12,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:58:12" (1/1) ... [2019-01-14 01:58:12,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:58:12" (1/1) ... [2019-01-14 01:58:12,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:58:12" (1/1) ... [2019-01-14 01:58:12,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 01:58:12,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 01:58:12,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 01:58:12,407 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 01:58:12,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:58:12" (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 [2019-01-14 01:58:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 01:58:12,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 01:58:12,787 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 01:58:12,787 INFO L286 CfgBuilder]: Removed 9 assue(true) statements. [2019-01-14 01:58:12,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:58:12 BoogieIcfgContainer [2019-01-14 01:58:12,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 01:58:12,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 01:58:12,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 01:58:12,793 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 01:58:12,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 01:58:12" (1/3) ... [2019-01-14 01:58:12,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563cdbfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:58:12, skipping insertion in model container [2019-01-14 01:58:12,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:58:12" (2/3) ... [2019-01-14 01:58:12,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563cdbfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:58:12, skipping insertion in model container [2019-01-14 01:58:12,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:58:12" (3/3) ... [2019-01-14 01:58:12,796 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2_true-unreach-call_true-no-overflow.i [2019-01-14 01:58:12,822 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 01:58:12,842 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-01-14 01:58:12,877 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-01-14 01:58:12,937 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 01:58:12,938 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 01:58:12,939 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 01:58:12,939 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 01:58:12,939 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 01:58:12,939 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 01:58:12,939 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 01:58:12,939 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 01:58:12,940 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 01:58:12,956 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-01-14 01:58:12,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-14 01:58:12,962 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:58:12,963 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-14 01:58:12,967 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:58:12,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:58:12,974 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-01-14 01:58:12,976 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:58:12,977 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:58:13,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:58:13,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:58:13,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:58:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:58:13,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:58:13,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:58:13,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-14 01:58:13,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:58:13,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:58:13,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:58:13,149 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2019-01-14 01:58:13,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:58:13,217 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2019-01-14 01:58:13,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:58:13,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-01-14 01:58:13,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:58:13,231 INFO L225 Difference]: With dead ends: 40 [2019-01-14 01:58:13,232 INFO L226 Difference]: Without dead ends: 10 [2019-01-14 01:58:13,235 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:58:13,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-01-14 01:58:13,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-01-14 01:58:13,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-01-14 01:58:13,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-01-14 01:58:13,267 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 3 [2019-01-14 01:58:13,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:58:13,268 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-01-14 01:58:13,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:58:13,268 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-01-14 01:58:13,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 01:58:13,269 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:58:13,269 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 01:58:13,270 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:58:13,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:58:13,270 INFO L82 PathProgramCache]: Analyzing trace with hash 957349, now seen corresponding path program 1 times [2019-01-14 01:58:13,270 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:58:13,271 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:58:13,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:58:13,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:58:13,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:58:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:58:13,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:58:13,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:58:13,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:58:13,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:58:13,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:58:13,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:58:13,305 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 3 states. [2019-01-14 01:58:13,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:58:13,321 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-01-14 01:58:13,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:58:13,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-14 01:58:13,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:58:13,323 INFO L225 Difference]: With dead ends: 10 [2019-01-14 01:58:13,324 INFO L226 Difference]: Without dead ends: 9 [2019-01-14 01:58:13,325 INFO L631 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 [2019-01-14 01:58:13,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-01-14 01:58:13,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-01-14 01:58:13,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-14 01:58:13,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-01-14 01:58:13,328 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2019-01-14 01:58:13,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:58:13,328 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-01-14 01:58:13,329 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:58:13,329 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-01-14 01:58:13,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 01:58:13,330 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:58:13,330 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 01:58:13,330 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:58:13,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:58:13,331 INFO L82 PathProgramCache]: Analyzing trace with hash 963371, now seen corresponding path program 1 times [2019-01-14 01:58:13,331 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:58:13,331 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:58:13,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:58:13,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:58:13,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:58:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:58:13,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:58:13,368 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:58:13,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-14 01:58:13,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:58:13,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:58:13,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:58:13,369 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2019-01-14 01:58:13,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:58:13,380 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-01-14 01:58:13,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:58:13,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-14 01:58:13,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:58:13,382 INFO L225 Difference]: With dead ends: 9 [2019-01-14 01:58:13,382 INFO L226 Difference]: Without dead ends: 8 [2019-01-14 01:58:13,382 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:58:13,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-14 01:58:13,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-14 01:58:13,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-14 01:58:13,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-01-14 01:58:13,386 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2019-01-14 01:58:13,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:58:13,386 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-01-14 01:58:13,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:58:13,389 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-01-14 01:58:13,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-14 01:58:13,389 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:58:13,390 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-14 01:58:13,390 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:58:13,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:58:13,390 INFO L82 PathProgramCache]: Analyzing trace with hash 29864549, now seen corresponding path program 1 times [2019-01-14 01:58:13,390 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:58:13,391 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:58:13,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:58:13,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:58:13,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:58:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:58:13,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:58:13,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:58:13,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:58:13,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:58:13,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:58:13,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:58:13,427 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 3 states. [2019-01-14 01:58:13,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:58:13,449 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-01-14 01:58:13,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:58:13,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-01-14 01:58:13,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:58:13,450 INFO L225 Difference]: With dead ends: 8 [2019-01-14 01:58:13,450 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 01:58:13,451 INFO L631 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 [2019-01-14 01:58:13,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 01:58:13,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 01:58:13,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 01:58:13,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 01:58:13,453 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-01-14 01:58:13,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:58:13,453 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 01:58:13,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:58:13,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 01:58:13,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 01:58:13,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 01:58:13,517 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-01-14 01:58:13,518 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-01-14 01:58:13,518 INFO L448 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2019-01-14 01:58:13,518 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 01:58:13,518 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 01:58:13,518 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 01:58:13,518 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 11 23) no Hoare annotation was computed. [2019-01-14 01:58:13,518 INFO L448 ceAbstractionStarter]: For program point L17-2(lines 17 21) no Hoare annotation was computed. [2019-01-14 01:58:13,519 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-01-14 01:58:13,519 INFO L451 ceAbstractionStarter]: At program point L38(lines 26 39) the Hoare annotation is: true [2019-01-14 01:58:13,519 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-01-14 01:58:13,519 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 36) no Hoare annotation was computed. [2019-01-14 01:58:13,519 INFO L451 ceAbstractionStarter]: At program point L34-1(lines 34 36) the Hoare annotation is: true [2019-01-14 01:58:13,520 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-01-14 01:58:13,520 INFO L451 ceAbstractionStarter]: At program point L22(lines 10 23) the Hoare annotation is: true [2019-01-14 01:58:13,520 INFO L448 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-01-14 01:58:13,520 INFO L448 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2019-01-14 01:58:13,520 INFO L448 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2019-01-14 01:58:13,520 INFO L448 ceAbstractionStarter]: For program point L14-4(lines 11 23) no Hoare annotation was computed. [2019-01-14 01:58:13,520 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-01-14 01:58:13,521 INFO L448 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-01-14 01:58:13,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 01:58:13 BoogieIcfgContainer [2019-01-14 01:58:13,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 01:58:13,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 01:58:13,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 01:58:13,530 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 01:58:13,531 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:58:12" (3/4) ... [2019-01-14 01:58:13,536 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 01:58:13,553 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-01-14 01:58:13,553 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-14 01:58:13,611 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 01:58:13,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 01:58:13,612 INFO L168 Benchmark]: Toolchain (without parser) took 1562.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -130.9 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-01-14 01:58:13,614 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:58:13,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.38 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 01:58:13,615 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.27 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:58:13,615 INFO L168 Benchmark]: Boogie Preprocessor took 30.03 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:58:13,616 INFO L168 Benchmark]: RCFGBuilder took 381.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-01-14 01:58:13,617 INFO L168 Benchmark]: TraceAbstraction took 740.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2019-01-14 01:58:13,617 INFO L168 Benchmark]: Witness Printer took 81.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-01-14 01:58:13,621 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.38 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 35.27 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.03 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 381.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 740.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * Witness Printer took 81.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 4 error locations. SAFE Result, 0.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 34 SDtfs, 24 SDslu, 17 SDs, 0 SdLazy, 19 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 146 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...