./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09_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/ChenFlurMukhopadhyay-SAS2012-Ex2.09_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 84b0699039fdd709a3306cfa354f9fcc70db171e .................................................................................................................................................................................................................................................................................................................................. 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 20:35:34,026 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 20:35:34,028 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 20:35:34,039 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 20:35:34,046 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 20:35:34,048 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 20:35:34,049 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 20:35:34,051 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 20:35:34,053 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 20:35:34,053 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 20:35:34,054 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 20:35:34,055 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 20:35:34,056 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 20:35:34,057 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 20:35:34,058 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 20:35:34,058 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 20:35:34,059 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 20:35:34,061 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 20:35:34,063 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 20:35:34,065 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 20:35:34,066 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 20:35:34,067 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 20:35:34,070 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 20:35:34,070 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 20:35:34,070 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 20:35:34,071 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 20:35:34,072 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 20:35:34,073 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 20:35:34,074 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 20:35:34,075 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 20:35:34,075 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 20:35:34,076 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 20:35:34,076 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 20:35:34,076 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 20:35:34,077 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 20:35:34,078 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 20:35:34,078 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-01 20:35:34,104 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 20:35:34,106 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 20:35:34,108 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 20:35:34,109 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 20:35:34,109 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 20:35:34,109 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 20:35:34,109 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 20:35:34,110 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 20:35:34,110 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 20:35:34,111 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 20:35:34,111 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 20:35:34,111 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 20:35:34,111 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-01 20:35:34,111 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 20:35:34,111 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 20:35:34,112 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 20:35:34,112 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 20:35:34,112 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 20:35:34,112 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 20:35:34,112 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 20:35:34,112 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 20:35:34,115 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 20:35:34,116 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 20:35:34,116 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 20:35:34,116 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 20:35:34,116 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 20:35:34,117 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 20:35:34,117 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 -> 84b0699039fdd709a3306cfa354f9fcc70db171e [2019-01-01 20:35:34,164 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 20:35:34,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 20:35:34,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 20:35:34,181 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 20:35:34,182 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 20:35:34,183 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09_false-no-overflow.c [2019-01-01 20:35:34,253 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/115b93c4c/7df5afdc988048bbb4dc4e0f14881705/FLAG80fa341b5 [2019-01-01 20:35:34,648 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 20:35:34,649 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09_false-no-overflow.c [2019-01-01 20:35:34,656 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/115b93c4c/7df5afdc988048bbb4dc4e0f14881705/FLAG80fa341b5 [2019-01-01 20:35:35,018 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/115b93c4c/7df5afdc988048bbb4dc4e0f14881705 [2019-01-01 20:35:35,022 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 20:35:35,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 20:35:35,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 20:35:35,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 20:35:35,028 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 20:35:35,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:35:35" (1/1) ... [2019-01-01 20:35:35,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19457690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:35:35, skipping insertion in model container [2019-01-01 20:35:35,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:35:35" (1/1) ... [2019-01-01 20:35:35,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 20:35:35,058 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 20:35:35,236 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:35:35,241 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 20:35:35,262 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:35:35,280 INFO L195 MainTranslator]: Completed translation [2019-01-01 20:35:35,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:35:35 WrapperNode [2019-01-01 20:35:35,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 20:35:35,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 20:35:35,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 20:35:35,283 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 20:35:35,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:35:35" (1/1) ... [2019-01-01 20:35:35,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:35:35" (1/1) ... [2019-01-01 20:35:35,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 20:35:35,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 20:35:35,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 20:35:35,328 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 20:35:35,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:35:35" (1/1) ... [2019-01-01 20:35:35,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:35:35" (1/1) ... [2019-01-01 20:35:35,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:35:35" (1/1) ... [2019-01-01 20:35:35,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:35:35" (1/1) ... [2019-01-01 20:35:35,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:35:35" (1/1) ... [2019-01-01 20:35:35,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:35:35" (1/1) ... [2019-01-01 20:35:35,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:35:35" (1/1) ... [2019-01-01 20:35:35,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 20:35:35,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 20:35:35,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 20:35:35,365 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 20:35:35,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:35:35" (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 20:35:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 20:35:35,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 20:35:35,796 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 20:35:35,796 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-01 20:35:35,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:35:35 BoogieIcfgContainer [2019-01-01 20:35:35,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 20:35:35,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 20:35:35,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 20:35:35,803 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 20:35:35,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 08:35:35" (1/3) ... [2019-01-01 20:35:35,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31dda79f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:35:35, skipping insertion in model container [2019-01-01 20:35:35,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:35:35" (2/3) ... [2019-01-01 20:35:35,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31dda79f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:35:35, skipping insertion in model container [2019-01-01 20:35:35,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:35:35" (3/3) ... [2019-01-01 20:35:35,808 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.09_false-no-overflow.c [2019-01-01 20:35:35,819 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 20:35:35,827 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-01-01 20:35:35,846 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-01-01 20:35:35,879 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 20:35:35,879 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 20:35:35,880 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 20:35:35,880 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 20:35:35,880 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 20:35:35,880 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 20:35:35,880 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 20:35:35,880 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 20:35:35,880 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 20:35:35,897 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-01-01 20:35:35,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-01 20:35:35,904 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:35:35,905 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-01 20:35:35,908 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:35:35,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:35:35,914 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-01-01 20:35:35,916 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:35:35,917 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:35:35,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:35:35,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:35:35,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:35:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:35:36,085 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 20:35:36,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:35:36,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:35:36,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:35:36,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:35:36,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:35:36,115 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2019-01-01 20:35:36,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:35:36,275 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-01-01 20:35:36,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:35:36,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-01-01 20:35:36,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:35:36,288 INFO L225 Difference]: With dead ends: 26 [2019-01-01 20:35:36,288 INFO L226 Difference]: Without dead ends: 17 [2019-01-01 20:35:36,291 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 20:35:36,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-01-01 20:35:36,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-01-01 20:35:36,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-01-01 20:35:36,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2019-01-01 20:35:36,323 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 3 [2019-01-01 20:35:36,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:35:36,323 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2019-01-01 20:35:36,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:35:36,324 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-01-01 20:35:36,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-01 20:35:36,324 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:35:36,325 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-01 20:35:36,325 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:35:36,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:35:36,326 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-01-01 20:35:36,326 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:35:36,326 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:35:36,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:35:36,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:35:36,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:35:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:35:36,363 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 20:35:36,363 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:35:36,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-01 20:35:36,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:35:36,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:35:36,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:35:36,367 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 3 states. [2019-01-01 20:35:36,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:35:36,481 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-01-01 20:35:36,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:35:36,482 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-01 20:35:36,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:35:36,483 INFO L225 Difference]: With dead ends: 29 [2019-01-01 20:35:36,483 INFO L226 Difference]: Without dead ends: 28 [2019-01-01 20:35:36,484 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 20:35:36,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-01-01 20:35:36,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2019-01-01 20:35:36,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-01 20:35:36,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-01-01 20:35:36,490 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 4 [2019-01-01 20:35:36,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:35:36,490 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-01-01 20:35:36,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:35:36,490 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-01-01 20:35:36,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-01 20:35:36,491 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:35:36,491 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-01 20:35:36,492 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:35:36,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:35:36,492 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2019-01-01 20:35:36,492 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:35:36,492 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:35:36,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:35:36,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:35:36,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:35:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:35:36,572 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 20:35:36,572 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:35:36,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:35:36,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 20:35:36,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 20:35:36,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 20:35:36,575 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 4 states. [2019-01-01 20:35:36,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:35:36,916 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-01-01 20:35:36,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 20:35:36,917 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-01-01 20:35:36,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:35:36,918 INFO L225 Difference]: With dead ends: 30 [2019-01-01 20:35:36,918 INFO L226 Difference]: Without dead ends: 28 [2019-01-01 20:35:36,918 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-01 20:35:36,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-01-01 20:35:36,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2019-01-01 20:35:36,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-01-01 20:35:36,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2019-01-01 20:35:36,923 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2019-01-01 20:35:36,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:35:36,923 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2019-01-01 20:35:36,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 20:35:36,923 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-01-01 20:35:36,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-01 20:35:36,923 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:35:36,924 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-01 20:35:36,924 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:35:36,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:35:36,924 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2019-01-01 20:35:36,925 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:35:36,925 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:35:36,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:35:36,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:35:36,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:35:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 20:35:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 20:35:36,971 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-01 20:35:36,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 08:35:36 BoogieIcfgContainer [2019-01-01 20:35:36,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 20:35:36,992 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 20:35:36,992 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 20:35:36,992 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 20:35:36,993 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:35:35" (3/4) ... [2019-01-01 20:35:36,995 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-01 20:35:37,042 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 20:35:37,042 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 20:35:37,043 INFO L168 Benchmark]: Toolchain (without parser) took 2020.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -118.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-01-01 20:35:37,045 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. [2019-01-01 20:35:37,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.85 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 20:35:37,046 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.38 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:35:37,047 INFO L168 Benchmark]: Boogie Preprocessor took 33.67 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:35:37,047 INFO L168 Benchmark]: RCFGBuilder took 435.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -171.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-01-01 20:35:37,048 INFO L168 Benchmark]: TraceAbstraction took 1193.87 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: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 11.5 GB. [2019-01-01 20:35:37,049 INFO L168 Benchmark]: Witness Printer took 50.44 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 20:35:37,053 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 257.85 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.38 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.67 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 435.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -171.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1193.87 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: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 11.5 GB. * Witness Printer took 50.44 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: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y, n; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] n = __VERIFIER_nondet_int() [L27] COND TRUE x > 0 && x < n [L28] EXPR -x [L28] -x + y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 8 error locations. UNSAFE Result, 1.1s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 34 SDslu, 15 SDs, 0 SdLazy, 74 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=3, 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, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...