./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/bitvector/modulus_true-unreach-call_true-no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/bitvector/modulus_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 c028dc478ad08c52f1db2e76a15a3094442b18a8 ...................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 21:15:53,238 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 21:15:53,241 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 21:15:53,256 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 21:15:53,257 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 21:15:53,259 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 21:15:53,260 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 21:15:53,262 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 21:15:53,263 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 21:15:53,264 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 21:15:53,265 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 21:15:53,265 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 21:15:53,266 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 21:15:53,267 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 21:15:53,269 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 21:15:53,269 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 21:15:53,270 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 21:15:53,272 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 21:15:53,274 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 21:15:53,276 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 21:15:53,277 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 21:15:53,278 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 21:15:53,280 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 21:15:53,281 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 21:15:53,281 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 21:15:53,282 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 21:15:53,283 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 21:15:53,284 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 21:15:53,284 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 21:15:53,286 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 21:15:53,286 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 21:15:53,286 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 21:15:53,287 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 21:15:53,287 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 21:15:53,288 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 21:15:53,289 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 21:15:53,289 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-01-01 21:15:53,311 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 21:15:53,312 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 21:15:53,313 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 21:15:53,313 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 21:15:53,313 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 21:15:53,313 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 21:15:53,314 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 21:15:53,314 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 21:15:53,314 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 21:15:53,314 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 21:15:53,314 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 21:15:53,314 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 21:15:53,315 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 21:15:53,315 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 21:15:53,315 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-01 21:15:53,315 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 21:15:53,315 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 21:15:53,315 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 21:15:53,316 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 21:15:53,316 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 21:15:53,316 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 21:15:53,316 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 21:15:53,316 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 21:15:53,317 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 21:15:53,317 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 21:15:53,317 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 21:15:53,317 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 21:15:53,317 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 21:15:53,318 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 21:15:53,318 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 21:15:53,318 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 -> c028dc478ad08c52f1db2e76a15a3094442b18a8 [2019-01-01 21:15:53,354 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 21:15:53,367 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 21:15:53,371 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 21:15:53,373 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 21:15:53,373 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 21:15:53,374 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/bitvector/modulus_true-unreach-call_true-no-overflow.i [2019-01-01 21:15:53,434 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/118949100/dc1df906f9a7462b89e07fcb03cb1328/FLAG5abd2144a [2019-01-01 21:15:53,920 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 21:15:53,921 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/bitvector/modulus_true-unreach-call_true-no-overflow.i [2019-01-01 21:15:53,928 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/118949100/dc1df906f9a7462b89e07fcb03cb1328/FLAG5abd2144a [2019-01-01 21:15:54,286 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/118949100/dc1df906f9a7462b89e07fcb03cb1328 [2019-01-01 21:15:54,290 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 21:15:54,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 21:15:54,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 21:15:54,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 21:15:54,298 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 21:15:54,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:15:54" (1/1) ... [2019-01-01 21:15:54,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f67e5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:15:54, skipping insertion in model container [2019-01-01 21:15:54,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:15:54" (1/1) ... [2019-01-01 21:15:54,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 21:15:54,327 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 21:15:54,522 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:15:54,530 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 21:15:54,568 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:15:54,587 INFO L195 MainTranslator]: Completed translation [2019-01-01 21:15:54,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:15:54 WrapperNode [2019-01-01 21:15:54,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 21:15:54,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 21:15:54,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 21:15:54,590 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 21:15:54,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:15:54" (1/1) ... [2019-01-01 21:15:54,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:15:54" (1/1) ... [2019-01-01 21:15:54,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 21:15:54,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 21:15:54,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 21:15:54,642 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 21:15:54,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:15:54" (1/1) ... [2019-01-01 21:15:54,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:15:54" (1/1) ... [2019-01-01 21:15:54,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:15:54" (1/1) ... [2019-01-01 21:15:54,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:15:54" (1/1) ... [2019-01-01 21:15:54,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:15:54" (1/1) ... [2019-01-01 21:15:54,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:15:54" (1/1) ... [2019-01-01 21:15:54,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:15:54" (1/1) ... [2019-01-01 21:15:54,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 21:15:54,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 21:15:54,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 21:15:54,695 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 21:15:54,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:15:54" (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 21:15:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 21:15:54,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 21:15:55,306 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 21:15:55,306 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2019-01-01 21:15:55,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:15:55 BoogieIcfgContainer [2019-01-01 21:15:55,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 21:15:55,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 21:15:55,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 21:15:55,312 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 21:15:55,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 09:15:54" (1/3) ... [2019-01-01 21:15:55,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c34420a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 09:15:55, skipping insertion in model container [2019-01-01 21:15:55,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:15:54" (2/3) ... [2019-01-01 21:15:55,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c34420a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 09:15:55, skipping insertion in model container [2019-01-01 21:15:55,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:15:55" (3/3) ... [2019-01-01 21:15:55,316 INFO L112 eAbstractionObserver]: Analyzing ICFG modulus_true-unreach-call_true-no-overflow.i [2019-01-01 21:15:55,325 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 21:15:55,333 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-01-01 21:15:55,348 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-01-01 21:15:55,378 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 21:15:55,379 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 21:15:55,379 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 21:15:55,379 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 21:15:55,380 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 21:15:55,380 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 21:15:55,380 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 21:15:55,380 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 21:15:55,381 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 21:15:55,398 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-01-01 21:15:55,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-01-01 21:15:55,405 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 21:15:55,406 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2019-01-01 21:15:55,409 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 21:15:55,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:15:55,416 INFO L82 PathProgramCache]: Analyzing trace with hash 994, now seen corresponding path program 1 times [2019-01-01 21:15:55,419 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:15:55,419 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:15:55,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:15:55,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:15:55,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:15:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:15:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:15:55,533 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-01 21:15:55,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 09:15:55 BoogieIcfgContainer [2019-01-01 21:15:55,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 21:15:55,551 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 21:15:55,552 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 21:15:55,552 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 21:15:55,553 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:15:55" (3/4) ... [2019-01-01 21:15:55,557 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-01 21:15:55,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 21:15:55,558 INFO L168 Benchmark]: Toolchain (without parser) took 1268.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -143.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:15:55,561 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:15:55,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.83 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 21:15:55,563 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.30 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:15:55,564 INFO L168 Benchmark]: Boogie Preprocessor took 52.29 ms. Allocated memory is still 1.0 GB. Free memory was 935.3 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-01 21:15:55,565 INFO L168 Benchmark]: RCFGBuilder took 612.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-01-01 21:15:55,566 INFO L168 Benchmark]: TraceAbstraction took 242.21 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2019-01-01 21:15:55,567 INFO L168 Benchmark]: Witness Printer took 6.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:15:55,573 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 295.83 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 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 52.30 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.29 ms. Allocated memory is still 1.0 GB. Free memory was 935.3 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 612.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 242.21 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Witness Printer took 6.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 29]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of shiftLeft at line 29. Possible FailurePath: [L24] unsigned int n = __VERIFIER_nondet_uint(); [L25] unsigned int s = __VERIFIER_nondet_uint(); [L26] unsigned int d; [L27] unsigned int m; [L29] 1 << s - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 4 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...