./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3_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 c49ca63b076bdfdfd4da2b39429bac3c0da8332d ....................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-0ed9222-m [2019-01-14 21:28:25,269 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 21:28:25,271 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 21:28:25,282 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 21:28:25,283 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 21:28:25,284 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 21:28:25,285 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 21:28:25,287 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 21:28:25,288 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 21:28:25,289 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 21:28:25,290 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 21:28:25,290 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 21:28:25,291 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 21:28:25,292 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 21:28:25,293 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 21:28:25,294 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 21:28:25,295 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 21:28:25,297 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 21:28:25,299 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 21:28:25,301 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 21:28:25,302 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 21:28:25,303 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 21:28:25,306 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 21:28:25,306 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 21:28:25,306 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 21:28:25,307 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 21:28:25,308 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 21:28:25,309 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 21:28:25,309 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 21:28:25,310 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 21:28:25,311 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 21:28:25,311 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 21:28:25,312 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 21:28:25,312 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 21:28:25,313 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 21:28:25,313 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 21:28:25,314 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-14 21:28:25,329 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 21:28:25,329 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 21:28:25,330 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 21:28:25,330 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 21:28:25,331 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 21:28:25,331 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 21:28:25,331 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 21:28:25,331 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 21:28:25,331 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 21:28:25,332 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 21:28:25,332 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 21:28:25,332 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 21:28:25,332 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-14 21:28:25,332 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 21:28:25,332 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 21:28:25,333 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 21:28:25,333 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 21:28:25,333 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 21:28:25,333 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 21:28:25,333 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 21:28:25,334 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 21:28:25,334 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 21:28:25,334 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 21:28:25,334 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 21:28:25,334 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 21:28:25,334 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 21:28:25,335 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 -> c49ca63b076bdfdfd4da2b39429bac3c0da8332d [2019-01-14 21:28:25,376 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 21:28:25,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 21:28:25,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 21:28:25,392 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 21:28:25,392 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 21:28:25,393 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3_false-no-overflow.c [2019-01-14 21:28:25,452 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9cbb59d4/149a34482b7a4422afdaaf0902713e25/FLAGbb0881e76 [2019-01-14 21:28:25,830 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 21:28:25,831 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3_false-no-overflow.c [2019-01-14 21:28:25,837 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9cbb59d4/149a34482b7a4422afdaaf0902713e25/FLAGbb0881e76 [2019-01-14 21:28:26,217 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9cbb59d4/149a34482b7a4422afdaaf0902713e25 [2019-01-14 21:28:26,221 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 21:28:26,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 21:28:26,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 21:28:26,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 21:28:26,229 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 21:28:26,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 09:28:26" (1/1) ... [2019-01-14 21:28:26,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bdb41c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:26, skipping insertion in model container [2019-01-14 21:28:26,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 09:28:26" (1/1) ... [2019-01-14 21:28:26,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 21:28:26,262 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 21:28:26,465 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 21:28:26,472 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 21:28:26,492 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 21:28:26,510 INFO L195 MainTranslator]: Completed translation [2019-01-14 21:28:26,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:26 WrapperNode [2019-01-14 21:28:26,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 21:28:26,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 21:28:26,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 21:28:26,513 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 21:28:26,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:26" (1/1) ... [2019-01-14 21:28:26,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:26" (1/1) ... [2019-01-14 21:28:26,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 21:28:26,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 21:28:26,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 21:28:26,552 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 21:28:26,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:26" (1/1) ... [2019-01-14 21:28:26,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:26" (1/1) ... [2019-01-14 21:28:26,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:26" (1/1) ... [2019-01-14 21:28:26,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:26" (1/1) ... [2019-01-14 21:28:26,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:26" (1/1) ... [2019-01-14 21:28:26,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:26" (1/1) ... [2019-01-14 21:28:26,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:26" (1/1) ... [2019-01-14 21:28:26,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 21:28:26,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 21:28:26,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 21:28:26,584 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 21:28:26,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 21:28:26,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 21:28:26,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 21:28:26,989 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 21:28:26,990 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-14 21:28:26,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 09:28:26 BoogieIcfgContainer [2019-01-14 21:28:26,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 21:28:26,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 21:28:26,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 21:28:26,997 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 21:28:26,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 09:28:26" (1/3) ... [2019-01-14 21:28:26,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523aa66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 09:28:26, skipping insertion in model container [2019-01-14 21:28:26,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:26" (2/3) ... [2019-01-14 21:28:27,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523aa66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 09:28:26, skipping insertion in model container [2019-01-14 21:28:27,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 09:28:26" (3/3) ... [2019-01-14 21:28:27,003 INFO L112 eAbstractionObserver]: Analyzing ICFG PodelskiRybalchenko-TACAS2011-Fig3_false-no-overflow.c [2019-01-14 21:28:27,014 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 21:28:27,021 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-01-14 21:28:27,042 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-01-14 21:28:27,082 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 21:28:27,083 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 21:28:27,083 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 21:28:27,083 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 21:28:27,083 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 21:28:27,083 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 21:28:27,083 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 21:28:27,083 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 21:28:27,084 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 21:28:27,099 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-01-14 21:28:27,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 21:28:27,108 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:28:27,109 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 21:28:27,112 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:28:27,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:28:27,117 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-01-14 21:28:27,119 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:28:27,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:28:27,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:27,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:28:27,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 21:28:27,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 21:28:27,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 21:28:27,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 21:28:27,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 21:28:27,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 21:28:27,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 21:28:27,304 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2019-01-14 21:28:27,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 21:28:27,442 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-01-14 21:28:27,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 21:28:27,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-01-14 21:28:27,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 21:28:27,454 INFO L225 Difference]: With dead ends: 46 [2019-01-14 21:28:27,454 INFO L226 Difference]: Without dead ends: 29 [2019-01-14 21:28:27,457 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 21:28:27,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-01-14 21:28:27,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 18. [2019-01-14 21:28:27,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-01-14 21:28:27,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2019-01-14 21:28:27,493 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 4 [2019-01-14 21:28:27,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 21:28:27,493 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2019-01-14 21:28:27,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 21:28:27,494 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-01-14 21:28:27,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 21:28:27,494 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:28:27,494 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 21:28:27,495 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:28:27,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:28:27,496 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-01-14 21:28:27,496 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:28:27,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:28:27,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:27,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:28:27,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 21:28:27,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 21:28:27,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 21:28:27,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 21:28:27,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 21:28:27,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 21:28:27,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 21:28:27,556 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 4 states. [2019-01-14 21:28:27,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 21:28:27,708 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2019-01-14 21:28:27,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 21:28:27,709 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-01-14 21:28:27,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 21:28:27,711 INFO L225 Difference]: With dead ends: 31 [2019-01-14 21:28:27,711 INFO L226 Difference]: Without dead ends: 30 [2019-01-14 21:28:27,713 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 21:28:27,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-01-14 21:28:27,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2019-01-14 21:28:27,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-01-14 21:28:27,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-01-14 21:28:27,719 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 4 [2019-01-14 21:28:27,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 21:28:27,719 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-01-14 21:28:27,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 21:28:27,719 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-01-14 21:28:27,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-14 21:28:27,721 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:28:27,721 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-14 21:28:27,721 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:28:27,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:28:27,722 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-01-14 21:28:27,722 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:28:27,722 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:28:27,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:27,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:28:27,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 21:28:27,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 21:28:27,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 21:28:27,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 21:28:27,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 21:28:27,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 21:28:27,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 21:28:27,773 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 3 states. [2019-01-14 21:28:27,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 21:28:27,823 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2019-01-14 21:28:27,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 21:28:27,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-01-14 21:28:27,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 21:28:27,824 INFO L225 Difference]: With dead ends: 22 [2019-01-14 21:28:27,824 INFO L226 Difference]: Without dead ends: 21 [2019-01-14 21:28:27,825 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 21:28:27,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-01-14 21:28:27,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-01-14 21:28:27,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-01-14 21:28:27,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-01-14 21:28:27,830 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 5 [2019-01-14 21:28:27,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 21:28:27,830 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-01-14 21:28:27,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 21:28:27,831 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-01-14 21:28:27,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-14 21:28:27,831 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:28:27,831 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-14 21:28:27,832 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:28:27,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:28:27,832 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-01-14 21:28:27,832 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:28:27,832 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:28:27,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:27,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:28:27,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 21:28:27,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 21:28:27,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 21:28:27,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 21:28:27,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 21:28:27,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 21:28:27,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 21:28:27,861 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 3 states. [2019-01-14 21:28:27,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 21:28:27,907 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-01-14 21:28:27,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 21:28:27,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-01-14 21:28:27,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 21:28:27,909 INFO L225 Difference]: With dead ends: 21 [2019-01-14 21:28:27,909 INFO L226 Difference]: Without dead ends: 19 [2019-01-14 21:28:27,909 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 21:28:27,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-01-14 21:28:27,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-01-14 21:28:27,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-01-14 21:28:27,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-01-14 21:28:27,913 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 5 [2019-01-14 21:28:27,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 21:28:27,913 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-01-14 21:28:27,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 21:28:27,914 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-01-14 21:28:27,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 21:28:27,914 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:28:27,914 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 21:28:27,915 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:28:27,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:28:27,915 INFO L82 PathProgramCache]: Analyzing trace with hash 925954989, now seen corresponding path program 1 times [2019-01-14 21:28:27,915 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:28:27,915 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:28:27,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:27,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:28:27,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 21:28:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 21:28:27,982 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 21:28:28,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 09:28:28 BoogieIcfgContainer [2019-01-14 21:28:28,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 21:28:28,007 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 21:28:28,007 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 21:28:28,008 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 21:28:28,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 09:28:26" (3/4) ... [2019-01-14 21:28:28,012 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-14 21:28:28,069 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 21:28:28,074 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 21:28:28,076 INFO L168 Benchmark]: Toolchain (without parser) took 1854.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -118.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-01-14 21:28:28,080 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 21:28:28,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.38 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. [2019-01-14 21:28:28,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.08 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. [2019-01-14 21:28:28,084 INFO L168 Benchmark]: Boogie Preprocessor took 31.24 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. [2019-01-14 21:28:28,085 INFO L168 Benchmark]: RCFGBuilder took 408.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-14 21:28:28,087 INFO L168 Benchmark]: TraceAbstraction took 1013.84 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: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. [2019-01-14 21:28:28,088 INFO L168 Benchmark]: Witness Printer took 67.19 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-14 21:28:28,094 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 287.38 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 39.08 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 31.24 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 408.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1013.84 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: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. * Witness Printer took 67.19 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x = __VERIFIER_nondet_int(); [L13] int y = __VERIFIER_nondet_int(); [L14] COND TRUE x > 0 && y > 0 [L15] int old_x = x; [L16] int old_y = y; [L17] COND FALSE !(__VERIFIER_nondet_int()) [L21] EXPR old_y - 2 [L21] x = old_y - 2 [L22] old_x + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. UNSAFE Result, 0.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 49 SDtfs, 71 SDslu, 42 SDs, 0 SdLazy, 48 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...