./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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 ../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron1.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 955b266f1a44cd585b006f48fe033847136df099 ............................................................................................................................................................................................................................... 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 0.1.25-9a8b2e8 [2020-10-20 06:23:59,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:23:59,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:23:59,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:23:59,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:23:59,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:23:59,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:23:59,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:23:59,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:23:59,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:23:59,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:23:59,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:23:59,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:23:59,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:23:59,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:23:59,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:23:59,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:23:59,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:23:59,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:23:59,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:23:59,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:23:59,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:23:59,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:23:59,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:23:59,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:23:59,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:23:59,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:23:59,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:23:59,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:23:59,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:23:59,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:23:59,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:23:59,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:23:59,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:23:59,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:23:59,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:23:59,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:23:59,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:23:59,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:23:59,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:23:59,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:23:59,360 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-20 06:23:59,400 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:23:59,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:23:59,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:23:59,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:23:59,401 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:23:59,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:23:59,402 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:23:59,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:23:59,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:23:59,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 06:23:59,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:23:59,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 06:23:59,404 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-20 06:23:59,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:23:59,405 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:23:59,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 06:23:59,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:23:59,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:23:59,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:23:59,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:23:59,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:23:59,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:23:59,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:23:59,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 06:23:59,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:23:59,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:23:59,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 06:23:59,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:23:59,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 955b266f1a44cd585b006f48fe033847136df099 [2020-10-20 06:23:59,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:23:59,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:23:59,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:23:59,671 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:23:59,676 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:23:59,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron1.c [2020-10-20 06:23:59,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8091329f7/c50d6415cff44c93b15edf29f335882f/FLAGdeb57f404 [2020-10-20 06:24:00,148 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:24:00,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron1.c [2020-10-20 06:24:00,154 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8091329f7/c50d6415cff44c93b15edf29f335882f/FLAGdeb57f404 [2020-10-20 06:24:00,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8091329f7/c50d6415cff44c93b15edf29f335882f [2020-10-20 06:24:00,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:24:00,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:24:00,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:24:00,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:24:00,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:24:00,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:24:00" (1/1) ... [2020-10-20 06:24:00,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cb59c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:00, skipping insertion in model container [2020-10-20 06:24:00,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:24:00" (1/1) ... [2020-10-20 06:24:00,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:24:00,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:24:00,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:24:00,835 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:24:00,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:24:00,883 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:24:00,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:00 WrapperNode [2020-10-20 06:24:00,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:24:00,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:24:00,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:24:00,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:24:00,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:00" (1/1) ... [2020-10-20 06:24:00,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:00" (1/1) ... [2020-10-20 06:24:00,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:24:00,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:24:00,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:24:00,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:24:00,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:00" (1/1) ... [2020-10-20 06:24:00,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:00" (1/1) ... [2020-10-20 06:24:00,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:00" (1/1) ... [2020-10-20 06:24:00,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:00" (1/1) ... [2020-10-20 06:24:00,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:00" (1/1) ... [2020-10-20 06:24:00,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:00" (1/1) ... [2020-10-20 06:24:00,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:00" (1/1) ... [2020-10-20 06:24:00,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:24:00,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:24:00,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:24:00,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:24:00,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:00" (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 [2020-10-20 06:24:01,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:24:01,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:24:01,275 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:24:01,275 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-20 06:24:01,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:24:01 BoogieIcfgContainer [2020-10-20 06:24:01,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:24:01,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:24:01,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:24:01,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:24:01,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:24:00" (1/3) ... [2020-10-20 06:24:01,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78994404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:24:01, skipping insertion in model container [2020-10-20 06:24:01,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:00" (2/3) ... [2020-10-20 06:24:01,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78994404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:24:01, skipping insertion in model container [2020-10-20 06:24:01,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:24:01" (3/3) ... [2020-10-20 06:24:01,288 INFO L111 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-aaron1.c [2020-10-20 06:24:01,300 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:24:01,308 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-10-20 06:24:01,321 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-20 06:24:01,346 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:24:01,346 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 06:24:01,346 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:24:01,346 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:24:01,346 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:24:01,346 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:24:01,347 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:24:01,347 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:24:01,363 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-20 06:24:01,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-20 06:24:01,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:24:01,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-20 06:24:01,372 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:24:01,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:24:01,379 INFO L82 PathProgramCache]: Analyzing trace with hash 29863588, now seen corresponding path program 1 times [2020-10-20 06:24:01,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:24:01,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131869413] [2020-10-20 06:24:01,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:24:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:24:01,500 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:24:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:24:01,515 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:24:01,531 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:24:01,532 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:24:01,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:24:01,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:24:01 BoogieIcfgContainer [2020-10-20 06:24:01,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:24:01,550 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:24:01,551 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:24:01,551 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:24:01,551 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:24:01" (3/4) ... [2020-10-20 06:24:01,554 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 06:24:01,590 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:24:01,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:24:01,593 INFO L168 Benchmark]: Toolchain (without parser) took 1061.72 ms. Allocated memory was 34.6 MB in the beginning and 44.6 MB in the end (delta: 10.0 MB). Free memory was 12.3 MB in the beginning and 22.2 MB in the end (delta: -10.0 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:24:01,594 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 34.1 MB. Free memory was 19.4 MB in the beginning and 19.4 MB in the end (delta: 29.9 kB). Peak memory consumption was 29.9 kB. Max. memory is 14.3 GB. [2020-10-20 06:24:01,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.76 ms. Allocated memory was 34.6 MB in the beginning and 41.9 MB in the end (delta: 7.3 MB). Free memory was 11.4 MB in the beginning and 26.2 MB in the end (delta: -14.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:24:01,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.99 ms. Allocated memory is still 41.9 MB. Free memory was 26.2 MB in the beginning and 24.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:24:01,597 INFO L168 Benchmark]: Boogie Preprocessor took 43.53 ms. Allocated memory is still 41.9 MB. Free memory was 24.6 MB in the beginning and 23.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:24:01,597 INFO L168 Benchmark]: RCFGBuilder took 303.69 ms. Allocated memory is still 41.9 MB. Free memory was 23.3 MB in the beginning and 21.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 12.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:24:01,598 INFO L168 Benchmark]: TraceAbstraction took 270.87 ms. Allocated memory was 41.9 MB in the beginning and 44.6 MB in the end (delta: 2.6 MB). Free memory was 20.5 MB in the beginning and 24.2 MB in the end (delta: -3.7 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:24:01,599 INFO L168 Benchmark]: Witness Printer took 40.20 ms. Allocated memory is still 44.6 MB. Free memory was 23.9 MB in the beginning and 22.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:24:01,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 34.1 MB. Free memory was 19.4 MB in the beginning and 19.4 MB in the end (delta: 29.9 kB). Peak memory consumption was 29.9 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 348.76 ms. Allocated memory was 34.6 MB in the beginning and 41.9 MB in the end (delta: 7.3 MB). Free memory was 11.4 MB in the beginning and 26.2 MB in the end (delta: -14.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 44.99 ms. Allocated memory is still 41.9 MB. Free memory was 26.2 MB in the beginning and 24.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 43.53 ms. Allocated memory is still 41.9 MB. Free memory was 24.6 MB in the beginning and 23.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 303.69 ms. Allocated memory is still 41.9 MB. Free memory was 23.3 MB in the beginning and 21.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 12.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 270.87 ms. Allocated memory was 41.9 MB in the beginning and 44.6 MB in the end (delta: 2.6 MB). Free memory was 20.5 MB in the beginning and 24.2 MB in the end (delta: -3.7 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 40.20 ms. Allocated memory is still 44.6 MB. Free memory was 23.9 MB in the beginning and 22.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int i, j, an, bn; [L15] i = __VERIFIER_nondet_int() [L16] j = __VERIFIER_nondet_int() [L17] an = __VERIFIER_nondet_int() [L18] bn = __VERIFIER_nondet_int() [L19] COND TRUE (an >= i && bn >= j) || (an >= i && bn <= j) || (an <= i && bn >= j) [L20] COND TRUE an >= i && bn >= j [L21] COND TRUE __VERIFIER_nondet_int() != 0 [L22] j + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...