./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted/Division_true-no-overflow_false-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2e94e6aa 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/termination-crafted/Division_true-no-overflow_false-termination_true-valid-memsafety.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d089d3bcb050ed43a9f47a1e8909790d01358f90 ............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 20:34:10,882 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 20:34:10,884 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 20:34:10,896 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 20:34:10,896 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 20:34:10,897 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 20:34:10,899 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 20:34:10,901 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 20:34:10,902 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 20:34:10,903 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 20:34:10,904 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 20:34:10,904 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 20:34:10,905 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 20:34:10,906 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 20:34:10,908 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 20:34:10,908 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 20:34:10,909 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 20:34:10,911 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 20:34:10,913 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 20:34:10,915 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 20:34:10,919 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 20:34:10,920 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 20:34:10,926 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 20:34:10,926 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 20:34:10,927 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 20:34:10,928 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 20:34:10,932 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 20:34:10,933 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 20:34:10,936 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 20:34:10,937 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 20:34:10,937 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 20:34:10,940 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 20:34:10,940 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 20:34:10,941 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 20:34:10,942 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 20:34:10,942 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 20:34:10,942 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-01 20:34:10,958 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 20:34:10,958 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 20:34:10,959 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 20:34:10,960 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 20:34:10,960 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 20:34:10,960 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 20:34:10,961 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 20:34:10,961 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 20:34:10,961 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 20:34:10,961 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 20:34:10,961 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 20:34:10,961 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 20:34:10,961 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-01 20:34:10,963 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 20:34:10,963 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 20:34:10,963 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 20:34:10,963 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 20:34:10,964 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 20:34:10,964 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 20:34:10,964 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 20:34:10,964 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 20:34:10,964 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 20:34:10,964 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 20:34:10,965 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 20:34:10,966 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 20:34:10,966 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 20:34:10,966 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 20:34:10,966 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d089d3bcb050ed43a9f47a1e8909790d01358f90 [2019-01-01 20:34:11,003 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 20:34:11,016 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 20:34:11,020 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 20:34:11,022 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 20:34:11,023 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 20:34:11,024 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/Division_true-no-overflow_false-termination_true-valid-memsafety.c [2019-01-01 20:34:11,088 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5edf20423/e438dbddd45b42078f11abc773045626/FLAGf0dc5868b [2019-01-01 20:34:11,478 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 20:34:11,479 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/Division_true-no-overflow_false-termination_true-valid-memsafety.c [2019-01-01 20:34:11,485 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5edf20423/e438dbddd45b42078f11abc773045626/FLAGf0dc5868b [2019-01-01 20:34:11,874 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5edf20423/e438dbddd45b42078f11abc773045626 [2019-01-01 20:34:11,879 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 20:34:11,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 20:34:11,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 20:34:11,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 20:34:11,887 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 20:34:11,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:34:11" (1/1) ... [2019-01-01 20:34:11,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1509bd75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:11, skipping insertion in model container [2019-01-01 20:34:11,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:34:11" (1/1) ... [2019-01-01 20:34:11,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 20:34:11,918 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 20:34:12,158 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:34:12,166 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 20:34:12,185 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:34:12,205 INFO L195 MainTranslator]: Completed translation [2019-01-01 20:34:12,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:12 WrapperNode [2019-01-01 20:34:12,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 20:34:12,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 20:34:12,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 20:34:12,208 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 20:34:12,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:12" (1/1) ... [2019-01-01 20:34:12,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:12" (1/1) ... [2019-01-01 20:34:12,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 20:34:12,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 20:34:12,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 20:34:12,253 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 20:34:12,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:12" (1/1) ... [2019-01-01 20:34:12,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:12" (1/1) ... [2019-01-01 20:34:12,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:12" (1/1) ... [2019-01-01 20:34:12,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:12" (1/1) ... [2019-01-01 20:34:12,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:12" (1/1) ... [2019-01-01 20:34:12,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:12" (1/1) ... [2019-01-01 20:34:12,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:12" (1/1) ... [2019-01-01 20:34:12,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 20:34:12,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 20:34:12,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 20:34:12,285 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 20:34:12,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:12" (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 [2019-01-01 20:34:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 20:34:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 20:34:12,732 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 20:34:12,732 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-01 20:34:12,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:34:12 BoogieIcfgContainer [2019-01-01 20:34:12,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 20:34:12,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 20:34:12,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 20:34:12,738 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 20:34:12,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 08:34:11" (1/3) ... [2019-01-01 20:34:12,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a511ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:34:12, skipping insertion in model container [2019-01-01 20:34:12,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:12" (2/3) ... [2019-01-01 20:34:12,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a511ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:34:12, skipping insertion in model container [2019-01-01 20:34:12,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:34:12" (3/3) ... [2019-01-01 20:34:12,742 INFO L112 eAbstractionObserver]: Analyzing ICFG Division_true-no-overflow_false-termination_true-valid-memsafety.c [2019-01-01 20:34:12,753 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 20:34:12,765 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-01-01 20:34:12,785 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-01-01 20:34:12,820 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 20:34:12,821 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 20:34:12,821 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 20:34:12,821 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 20:34:12,821 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 20:34:12,821 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 20:34:12,821 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 20:34:12,822 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 20:34:12,822 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 20:34:12,842 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-01-01 20:34:12,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-01 20:34:12,849 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:34:12,850 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-01 20:34:12,857 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:34:12,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:34:12,865 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-01-01 20:34:12,868 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:34:12,869 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:34:12,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:34:12,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:34:12,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:34:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:34:13,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:34:13,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:34:13,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:34:13,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:34:13,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:34:13,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:34:13,138 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2019-01-01 20:34:13,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:34:13,325 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-01-01 20:34:13,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:34:13,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-01-01 20:34:13,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:34:13,338 INFO L225 Difference]: With dead ends: 27 [2019-01-01 20:34:13,338 INFO L226 Difference]: Without dead ends: 12 [2019-01-01 20:34:13,342 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 [2019-01-01 20:34:13,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-01-01 20:34:13,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-01-01 20:34:13,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-01 20:34:13,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-01-01 20:34:13,376 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 3 [2019-01-01 20:34:13,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:34:13,377 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-01-01 20:34:13,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:34:13,377 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-01-01 20:34:13,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-01 20:34:13,378 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:34:13,378 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-01 20:34:13,378 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:34:13,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:34:13,379 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-01-01 20:34:13,379 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:34:13,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:34:13,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:34:13,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:34:13,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:34:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:34:13,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:34:13,423 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:34:13,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:34:13,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:34:13,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:34:13,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:34:13,427 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 3 states. [2019-01-01 20:34:13,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:34:13,507 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-01-01 20:34:13,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:34:13,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-01 20:34:13,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:34:13,508 INFO L225 Difference]: With dead ends: 12 [2019-01-01 20:34:13,509 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 20:34:13,510 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 [2019-01-01 20:34:13,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 20:34:13,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 20:34:13,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 20:34:13,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 20:34:13,511 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-01-01 20:34:13,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:34:13,511 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 20:34:13,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:34:13,511 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 20:34:13,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 20:34:13,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-01 20:34:13,551 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-01 20:34:13,552 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-01-01 20:34:13,552 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-01-01 20:34:13,552 INFO L451 ceAbstractionStarter]: At program point L17(lines 11 18) the Hoare annotation is: true [2019-01-01 20:34:13,552 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-01-01 20:34:13,552 INFO L448 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2019-01-01 20:34:13,552 INFO L448 ceAbstractionStarter]: For program point L15-2(line 15) no Hoare annotation was computed. [2019-01-01 20:34:13,553 INFO L448 ceAbstractionStarter]: For program point L15-3(line 15) no Hoare annotation was computed. [2019-01-01 20:34:13,553 INFO L448 ceAbstractionStarter]: For program point L15-4(line 15) no Hoare annotation was computed. [2019-01-01 20:34:13,553 INFO L448 ceAbstractionStarter]: For program point L15-5(line 15) no Hoare annotation was computed. [2019-01-01 20:34:13,553 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-01-01 20:34:13,553 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-01 20:34:13,553 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-01 20:34:13,553 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-01-01 20:34:13,554 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-01-01 20:34:13,554 INFO L451 ceAbstractionStarter]: At program point L14-2(lines 14 16) the Hoare annotation is: true [2019-01-01 20:34:13,554 INFO L448 ceAbstractionStarter]: For program point L14-3(lines 14 16) no Hoare annotation was computed. [2019-01-01 20:34:13,554 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-01-01 20:34:13,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 08:34:13 BoogieIcfgContainer [2019-01-01 20:34:13,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 20:34:13,561 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 20:34:13,561 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 20:34:13,561 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 20:34:13,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:34:12" (3/4) ... [2019-01-01 20:34:13,568 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 20:34:13,581 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 20:34:13,582 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-01 20:34:13,633 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 20:34:13,634 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 20:34:13,635 INFO L168 Benchmark]: Toolchain (without parser) took 1755.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 947.3 MB in the beginning and 1.0 GB in the end (delta: -98.5 MB). Peak memory consumption was 4.3 MB. Max. memory is 11.5 GB. [2019-01-01 20:34:13,639 INFO L168 Benchmark]: CDTParser took 0.17 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. [2019-01-01 20:34:13,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.31 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 20:34:13,642 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.65 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:34:13,643 INFO L168 Benchmark]: Boogie Preprocessor took 31.99 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:34:13,643 INFO L168 Benchmark]: RCFGBuilder took 448.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -138.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-01-01 20:34:13,644 INFO L168 Benchmark]: TraceAbstraction took 825.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. [2019-01-01 20:34:13,645 INFO L168 Benchmark]: Witness Printer took 73.62 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:34:13,649 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 325.31 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 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 44.65 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.99 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 448.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -138.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 825.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. * Witness Printer took 73.62 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. 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: 15]: 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 - PositiveResult [Line: 15]: 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 - 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 6 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 6 error locations. SAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 16 SDslu, 3 SDs, 0 SdLazy, 21 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...