./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/joey_false-no-overflow.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-lit/joey_false-no-overflow.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 6360f720317c1229a4bb277806239106bfb4e5c0 .............................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 20:37:05,257 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 20:37:05,258 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 20:37:05,270 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 20:37:05,271 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 20:37:05,272 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 20:37:05,273 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 20:37:05,275 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 20:37:05,281 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 20:37:05,282 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 20:37:05,283 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 20:37:05,283 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 20:37:05,286 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 20:37:05,287 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 20:37:05,288 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 20:37:05,292 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 20:37:05,293 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 20:37:05,298 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 20:37:05,303 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 20:37:05,308 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 20:37:05,310 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 20:37:05,314 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 20:37:05,319 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 20:37:05,323 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 20:37:05,323 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 20:37:05,324 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 20:37:05,325 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 20:37:05,329 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 20:37:05,330 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 20:37:05,332 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 20:37:05,334 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 20:37:05,334 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 20:37:05,335 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 20:37:05,335 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 20:37:05,338 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 20:37:05,339 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 20:37:05,340 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-01 20:37:05,370 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 20:37:05,370 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 20:37:05,371 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 20:37:05,371 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 20:37:05,371 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 20:37:05,372 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 20:37:05,372 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 20:37:05,373 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 20:37:05,373 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 20:37:05,373 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 20:37:05,373 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 20:37:05,373 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 20:37:05,373 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-01 20:37:05,374 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 20:37:05,374 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 20:37:05,375 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 20:37:05,375 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 20:37:05,375 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 20:37:05,376 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 20:37:05,376 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 20:37:05,376 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 20:37:05,376 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 20:37:05,376 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 20:37:05,376 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 20:37:05,377 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 20:37:05,378 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 20:37:05,378 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 20:37:05,378 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 -> 6360f720317c1229a4bb277806239106bfb4e5c0 [2019-01-01 20:37:05,415 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 20:37:05,431 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 20:37:05,436 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 20:37:05,438 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 20:37:05,438 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 20:37:05,440 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/joey_false-no-overflow.c [2019-01-01 20:37:05,510 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54e534130/51ef6428df424e82933e7f94a24e3fcd/FLAG8e15d9046 [2019-01-01 20:37:05,995 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 20:37:05,996 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/joey_false-no-overflow.c [2019-01-01 20:37:06,003 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54e534130/51ef6428df424e82933e7f94a24e3fcd/FLAG8e15d9046 [2019-01-01 20:37:06,328 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54e534130/51ef6428df424e82933e7f94a24e3fcd [2019-01-01 20:37:06,332 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 20:37:06,333 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 20:37:06,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 20:37:06,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 20:37:06,338 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 20:37:06,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:37:06" (1/1) ... [2019-01-01 20:37:06,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3026fc79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:06, skipping insertion in model container [2019-01-01 20:37:06,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:37:06" (1/1) ... [2019-01-01 20:37:06,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 20:37:06,370 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 20:37:06,607 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:37:06,613 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 20:37:06,635 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:37:06,652 INFO L195 MainTranslator]: Completed translation [2019-01-01 20:37:06,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:06 WrapperNode [2019-01-01 20:37:06,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 20:37:06,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 20:37:06,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 20:37:06,655 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 20:37:06,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:06" (1/1) ... [2019-01-01 20:37:06,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:06" (1/1) ... [2019-01-01 20:37:06,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 20:37:06,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 20:37:06,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 20:37:06,696 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 20:37:06,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:06" (1/1) ... [2019-01-01 20:37:06,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:06" (1/1) ... [2019-01-01 20:37:06,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:06" (1/1) ... [2019-01-01 20:37:06,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:06" (1/1) ... [2019-01-01 20:37:06,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:06" (1/1) ... [2019-01-01 20:37:06,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:06" (1/1) ... [2019-01-01 20:37:06,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:06" (1/1) ... [2019-01-01 20:37:06,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 20:37:06,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 20:37:06,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 20:37:06,730 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 20:37:06,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:06" (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 20:37:06,857 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2019-01-01 20:37:06,857 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2019-01-01 20:37:06,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 20:37:06,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 20:37:07,210 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 20:37:07,210 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-01 20:37:07,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:37:07 BoogieIcfgContainer [2019-01-01 20:37:07,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 20:37:07,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 20:37:07,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 20:37:07,216 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 20:37:07,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 08:37:06" (1/3) ... [2019-01-01 20:37:07,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac57329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:37:07, skipping insertion in model container [2019-01-01 20:37:07,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:06" (2/3) ... [2019-01-01 20:37:07,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac57329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:37:07, skipping insertion in model container [2019-01-01 20:37:07,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:37:07" (3/3) ... [2019-01-01 20:37:07,220 INFO L112 eAbstractionObserver]: Analyzing ICFG joey_false-no-overflow.c [2019-01-01 20:37:07,231 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 20:37:07,241 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-01-01 20:37:07,260 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-01-01 20:37:07,318 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 20:37:07,319 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 20:37:07,319 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 20:37:07,319 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 20:37:07,319 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 20:37:07,319 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 20:37:07,321 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 20:37:07,321 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 20:37:07,321 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 20:37:07,340 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-01-01 20:37:07,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-01 20:37:07,345 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:37:07,346 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-01 20:37:07,349 INFO L423 AbstractCegarLoop]: === Iteration 1 === [recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:37:07,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:37:07,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1873828178, now seen corresponding path program 1 times [2019-01-01 20:37:07,358 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:37:07,358 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:37:07,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:07,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:37:07,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:37:07,671 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 20:37:07,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:37:07,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 20:37:07,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 20:37:07,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 20:37:07,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-01-01 20:37:07,696 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 7 states. [2019-01-01 20:37:08,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:37:08,287 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2019-01-01 20:37:08,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 20:37:08,289 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2019-01-01 20:37:08,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:37:08,301 INFO L225 Difference]: With dead ends: 66 [2019-01-01 20:37:08,301 INFO L226 Difference]: Without dead ends: 52 [2019-01-01 20:37:08,304 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-01-01 20:37:08,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-01-01 20:37:08,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 45. [2019-01-01 20:37:08,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-01-01 20:37:08,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2019-01-01 20:37:08,353 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 6 [2019-01-01 20:37:08,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:37:08,354 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2019-01-01 20:37:08,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 20:37:08,354 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2019-01-01 20:37:08,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-01 20:37:08,355 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:37:08,355 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-01 20:37:08,355 INFO L423 AbstractCegarLoop]: === Iteration 2 === [recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:37:08,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:37:08,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1873828402, now seen corresponding path program 1 times [2019-01-01 20:37:08,356 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:37:08,356 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:37:08,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:08,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:37:08,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 20:37:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 20:37:08,390 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-01 20:37:08,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 08:37:08 BoogieIcfgContainer [2019-01-01 20:37:08,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 20:37:08,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 20:37:08,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 20:37:08,416 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 20:37:08,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:37:07" (3/4) ... [2019-01-01 20:37:08,419 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-01 20:37:08,462 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 20:37:08,462 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 20:37:08,463 INFO L168 Benchmark]: Toolchain (without parser) took 2130.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -127.1 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2019-01-01 20:37:08,464 INFO L168 Benchmark]: CDTParser took 0.19 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 20:37:08,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.61 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 20:37:08,466 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.27 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:37:08,466 INFO L168 Benchmark]: Boogie Preprocessor took 33.79 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:37:08,467 INFO L168 Benchmark]: RCFGBuilder took 481.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-01-01 20:37:08,468 INFO L168 Benchmark]: TraceAbstraction took 1202.81 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: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 11.5 GB. [2019-01-01 20:37:08,469 INFO L168 Benchmark]: Witness Printer took 46.76 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-01-01 20:37:08,474 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 319.61 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 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 41.27 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.79 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 481.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1202.81 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: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 11.5 GB. * Witness Printer took 46.76 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y; [L22] CALL rec(x) VAL [\old(x)=2147483647] [L10] COND FALSE !(x <= 0) VAL [\old(x)=2147483647, x=2147483647] [L12] COND FALSE !(x%2 == 0) VAL [\old(x)=2147483647, x=2147483647] [L15] ++x VAL [\old(x)=2147483647, x=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 8 error locations. UNSAFE Result, 1.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 45 SDslu, 71 SDs, 0 SdLazy, 68 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=1, 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, 1 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...