./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/PodelskiRybalchenko-VMCAI2004-Ex2_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/PodelskiRybalchenko-VMCAI2004-Ex2_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 f679dfb8dfa1325a053f9e19d78c019079eb5e5e ....................................................................................................................................................................................................................................................... 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 20:37:00,314 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 20:37:00,316 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 20:37:00,328 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 20:37:00,328 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 20:37:00,329 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 20:37:00,330 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 20:37:00,332 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 20:37:00,334 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 20:37:00,335 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 20:37:00,336 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 20:37:00,336 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 20:37:00,337 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 20:37:00,338 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 20:37:00,339 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 20:37:00,340 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 20:37:00,341 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 20:37:00,343 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 20:37:00,345 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 20:37:00,346 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 20:37:00,348 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 20:37:00,349 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 20:37:00,355 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 20:37:00,355 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 20:37:00,355 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 20:37:00,357 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 20:37:00,362 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 20:37:00,365 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 20:37:00,366 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 20:37:00,369 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 20:37:00,371 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 20:37:00,371 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 20:37:00,372 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 20:37:00,372 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 20:37:00,375 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 20:37:00,376 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 20:37:00,376 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-01 20:37:00,408 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 20:37:00,411 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 20:37:00,413 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 20:37:00,413 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 20:37:00,413 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 20:37:00,413 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 20:37:00,413 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 20:37:00,415 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 20:37:00,415 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 20:37:00,415 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 20:37:00,415 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 20:37:00,416 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 20:37:00,416 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-01 20:37:00,416 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 20:37:00,416 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 20:37:00,417 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 20:37:00,417 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 20:37:00,418 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 20:37:00,418 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 20:37:00,418 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 20:37:00,418 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 20:37:00,418 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 20:37:00,421 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 20:37:00,421 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 20:37:00,421 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 20:37:00,421 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 20:37:00,421 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 20:37:00,422 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 -> f679dfb8dfa1325a053f9e19d78c019079eb5e5e [2019-01-01 20:37:00,486 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 20:37:00,505 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 20:37:00,512 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 20:37:00,514 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 20:37:00,514 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 20:37:00,516 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/PodelskiRybalchenko-VMCAI2004-Ex2_false-no-overflow.c [2019-01-01 20:37:00,579 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/361b201c9/3571ec2c89fb415199fe46348d6bae2a/FLAG6a732a8fd [2019-01-01 20:37:01,010 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 20:37:01,011 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/PodelskiRybalchenko-VMCAI2004-Ex2_false-no-overflow.c [2019-01-01 20:37:01,016 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/361b201c9/3571ec2c89fb415199fe46348d6bae2a/FLAG6a732a8fd [2019-01-01 20:37:01,401 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/361b201c9/3571ec2c89fb415199fe46348d6bae2a [2019-01-01 20:37:01,404 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 20:37:01,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 20:37:01,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 20:37:01,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 20:37:01,411 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 20:37:01,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:37:01" (1/1) ... [2019-01-01 20:37:01,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@334b70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:01, skipping insertion in model container [2019-01-01 20:37:01,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:37:01" (1/1) ... [2019-01-01 20:37:01,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 20:37:01,441 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 20:37:01,648 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:37:01,653 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 20:37:01,671 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:37:01,687 INFO L195 MainTranslator]: Completed translation [2019-01-01 20:37:01,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:01 WrapperNode [2019-01-01 20:37:01,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 20:37:01,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 20:37:01,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 20:37:01,689 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 20:37:01,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:01" (1/1) ... [2019-01-01 20:37:01,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:01" (1/1) ... [2019-01-01 20:37:01,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 20:37:01,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 20:37:01,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 20:37:01,727 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 20:37:01,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:01" (1/1) ... [2019-01-01 20:37:01,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:01" (1/1) ... [2019-01-01 20:37:01,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:01" (1/1) ... [2019-01-01 20:37:01,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:01" (1/1) ... [2019-01-01 20:37:01,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:01" (1/1) ... [2019-01-01 20:37:01,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:01" (1/1) ... [2019-01-01 20:37:01,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:01" (1/1) ... [2019-01-01 20:37:01,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 20:37:01,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 20:37:01,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 20:37:01,754 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 20:37:01,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:01" (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 20:37:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 20:37:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 20:37:02,086 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 20:37:02,086 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-01 20:37:02,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:37:02 BoogieIcfgContainer [2019-01-01 20:37:02,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 20:37:02,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 20:37:02,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 20:37:02,091 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 20:37:02,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 08:37:01" (1/3) ... [2019-01-01 20:37:02,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf4d472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:37:02, skipping insertion in model container [2019-01-01 20:37:02,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:01" (2/3) ... [2019-01-01 20:37:02,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf4d472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:37:02, skipping insertion in model container [2019-01-01 20:37:02,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:37:02" (3/3) ... [2019-01-01 20:37:02,095 INFO L112 eAbstractionObserver]: Analyzing ICFG PodelskiRybalchenko-VMCAI2004-Ex2_false-no-overflow.c [2019-01-01 20:37:02,106 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 20:37:02,114 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-01-01 20:37:02,133 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-01-01 20:37:02,166 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 20:37:02,167 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 20:37:02,167 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 20:37:02,167 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 20:37:02,167 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 20:37:02,167 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 20:37:02,167 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 20:37:02,167 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 20:37:02,168 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 20:37:02,182 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-01-01 20:37:02,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-01 20:37:02,192 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:37:02,193 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-01 20:37:02,198 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:37:02,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:37:02,207 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-01-01 20:37:02,209 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:37:02,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:37:02,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:02,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:37:02,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:37:02,341 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 20:37:02,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:37:02,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:37:02,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:37:02,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:37:02,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:37:02,367 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2019-01-01 20:37:02,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:37:02,525 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-01-01 20:37:02,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:37:02,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-01-01 20:37:02,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:37:02,539 INFO L225 Difference]: With dead ends: 18 [2019-01-01 20:37:02,539 INFO L226 Difference]: Without dead ends: 8 [2019-01-01 20:37:02,543 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 20:37:02,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-01 20:37:02,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-01 20:37:02,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-01 20:37:02,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-01-01 20:37:02,576 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 3 [2019-01-01 20:37:02,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:37:02,577 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-01-01 20:37:02,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:37:02,577 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-01-01 20:37:02,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-01 20:37:02,577 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:37:02,578 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-01 20:37:02,578 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:37:02,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:37:02,579 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-01-01 20:37:02,579 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:37:02,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:37:02,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:02,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:37:02,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 20:37:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 20:37:02,607 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-01 20:37:02,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 08:37:02 BoogieIcfgContainer [2019-01-01 20:37:02,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 20:37:02,625 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 20:37:02,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 20:37:02,625 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 20:37:02,626 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:37:02" (3/4) ... [2019-01-01 20:37:02,629 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-01 20:37:02,679 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 20:37:02,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 20:37:02,681 INFO L168 Benchmark]: Toolchain (without parser) took 1275.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -126.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:37:02,683 INFO L168 Benchmark]: CDTParser took 0.44 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 20:37:02,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.15 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 20:37:02,685 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.73 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:37:02,685 INFO L168 Benchmark]: Boogie Preprocessor took 27.05 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:37:02,686 INFO L168 Benchmark]: RCFGBuilder took 333.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-01-01 20:37:02,688 INFO L168 Benchmark]: TraceAbstraction took 536.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-01-01 20:37:02,689 INFO L168 Benchmark]: Witness Printer took 55.02 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 20:37:02,694 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 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 281.15 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 37.73 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.05 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 333.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 536.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * Witness Printer took 55.02 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: - CounterExampleResult [Line: 18]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int x; [L16] x = __VERIFIER_nondet_int() [L17] COND TRUE x >= 0 [L18] -2*x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 5 SDslu, 3 SDs, 0 SdLazy, 9 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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...