./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted/Pure2Phase_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/Pure2Phase_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 aad7ddb2e0d4476ced8f52bbccb469aff17d069d ........................................................................................................................................................................................................................................................ 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 01:16:33,986 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 01:16:33,988 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 01:16:34,000 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 01:16:34,001 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 01:16:34,002 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 01:16:34,004 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 01:16:34,006 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 01:16:34,008 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 01:16:34,009 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 01:16:34,010 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 01:16:34,010 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 01:16:34,011 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 01:16:34,019 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 01:16:34,020 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 01:16:34,021 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 01:16:34,024 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 01:16:34,029 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 01:16:34,034 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 01:16:34,038 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 01:16:34,040 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 01:16:34,045 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 01:16:34,050 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 01:16:34,052 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 01:16:34,052 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 01:16:34,053 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 01:16:34,057 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 01:16:34,058 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 01:16:34,062 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 01:16:34,063 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 01:16:34,063 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 01:16:34,066 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 01:16:34,066 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 01:16:34,067 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 01:16:34,068 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 01:16:34,068 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 01:16:34,070 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-14 01:16:34,100 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 01:16:34,101 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 01:16:34,103 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 01:16:34,105 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 01:16:34,105 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 01:16:34,105 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 01:16:34,106 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 01:16:34,107 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 01:16:34,107 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 01:16:34,107 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 01:16:34,108 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 01:16:34,108 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 01:16:34,108 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-14 01:16:34,108 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 01:16:34,109 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 01:16:34,109 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 01:16:34,109 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 01:16:34,110 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 01:16:34,112 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 01:16:34,112 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 01:16:34,112 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 01:16:34,112 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 01:16:34,113 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 01:16:34,114 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 01:16:34,114 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 01:16:34,114 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 01:16:34,115 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 01:16:34,115 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 -> aad7ddb2e0d4476ced8f52bbccb469aff17d069d [2019-01-14 01:16:34,181 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 01:16:34,200 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 01:16:34,207 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 01:16:34,209 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 01:16:34,210 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 01:16:34,210 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/Pure2Phase_false-no-overflow.c [2019-01-14 01:16:34,279 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1f8e372e/97e765af8aa34d75903b044d6a4fc4df/FLAGf6a4731c1 [2019-01-14 01:16:34,674 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 01:16:34,675 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/Pure2Phase_false-no-overflow.c [2019-01-14 01:16:34,680 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1f8e372e/97e765af8aa34d75903b044d6a4fc4df/FLAGf6a4731c1 [2019-01-14 01:16:35,072 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1f8e372e/97e765af8aa34d75903b044d6a4fc4df [2019-01-14 01:16:35,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 01:16:35,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 01:16:35,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 01:16:35,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 01:16:35,081 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 01:16:35,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:16:35" (1/1) ... [2019-01-14 01:16:35,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4133aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:35, skipping insertion in model container [2019-01-14 01:16:35,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:16:35" (1/1) ... [2019-01-14 01:16:35,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 01:16:35,110 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 01:16:35,269 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:16:35,272 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 01:16:35,289 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:16:35,302 INFO L195 MainTranslator]: Completed translation [2019-01-14 01:16:35,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:35 WrapperNode [2019-01-14 01:16:35,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 01:16:35,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 01:16:35,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 01:16:35,303 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 01:16:35,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:35" (1/1) ... [2019-01-14 01:16:35,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:35" (1/1) ... [2019-01-14 01:16:35,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 01:16:35,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 01:16:35,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 01:16:35,332 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 01:16:35,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:35" (1/1) ... [2019-01-14 01:16:35,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:35" (1/1) ... [2019-01-14 01:16:35,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:35" (1/1) ... [2019-01-14 01:16:35,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:35" (1/1) ... [2019-01-14 01:16:35,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:35" (1/1) ... [2019-01-14 01:16:35,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:35" (1/1) ... [2019-01-14 01:16:35,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:35" (1/1) ... [2019-01-14 01:16:35,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 01:16:35,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 01:16:35,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 01:16:35,347 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 01:16:35,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:35" (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 [2019-01-14 01:16:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 01:16:35,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 01:16:35,641 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 01:16:35,642 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-14 01:16:35,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:16:35 BoogieIcfgContainer [2019-01-14 01:16:35,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 01:16:35,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 01:16:35,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 01:16:35,646 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 01:16:35,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 01:16:35" (1/3) ... [2019-01-14 01:16:35,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc9de03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:16:35, skipping insertion in model container [2019-01-14 01:16:35,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:35" (2/3) ... [2019-01-14 01:16:35,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc9de03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:16:35, skipping insertion in model container [2019-01-14 01:16:35,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:16:35" (3/3) ... [2019-01-14 01:16:35,650 INFO L112 eAbstractionObserver]: Analyzing ICFG Pure2Phase_false-no-overflow.c [2019-01-14 01:16:35,657 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 01:16:35,665 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-01-14 01:16:35,678 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-01-14 01:16:35,706 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 01:16:35,707 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 01:16:35,707 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 01:16:35,707 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 01:16:35,707 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 01:16:35,708 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 01:16:35,708 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 01:16:35,708 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 01:16:35,708 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 01:16:35,722 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-01-14 01:16:35,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-14 01:16:35,728 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:16:35,729 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-14 01:16:35,732 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:16:35,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:16:35,738 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-01-14 01:16:35,740 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:16:35,741 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:16:35,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:16:35,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:16:35,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:16:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:16:35,899 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 01:16:35,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:16:35,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-14 01:16:35,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:16:35,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:16:35,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:16:35,919 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-01-14 01:16:35,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:16:35,968 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-01-14 01:16:35,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:16:35,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-01-14 01:16:35,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:16:35,984 INFO L225 Difference]: With dead ends: 19 [2019-01-14 01:16:35,984 INFO L226 Difference]: Without dead ends: 10 [2019-01-14 01:16:35,996 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 [2019-01-14 01:16:36,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-01-14 01:16:36,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-01-14 01:16:36,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-01-14 01:16:36,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-01-14 01:16:36,055 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 3 [2019-01-14 01:16:36,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:16:36,056 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-01-14 01:16:36,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:16:36,056 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-01-14 01:16:36,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 01:16:36,056 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:16:36,056 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 01:16:36,057 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:16:36,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:16:36,057 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-01-14 01:16:36,058 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:16:36,069 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:16:36,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:16:36,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:16:36,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:16:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 01:16:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 01:16:36,115 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 01:16:36,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 01:16:36 BoogieIcfgContainer [2019-01-14 01:16:36,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 01:16:36,155 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 01:16:36,155 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 01:16:36,155 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 01:16:36,156 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:16:35" (3/4) ... [2019-01-14 01:16:36,159 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-14 01:16:36,210 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 01:16:36,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 01:16:36,212 INFO L168 Benchmark]: Toolchain (without parser) took 1136.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -143.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:16:36,214 INFO L168 Benchmark]: CDTParser took 0.15 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 01:16:36,214 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.51 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 01:16:36,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.17 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 01:16:36,216 INFO L168 Benchmark]: Boogie Preprocessor took 15.56 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 01:16:36,217 INFO L168 Benchmark]: RCFGBuilder took 295.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -175.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-01-14 01:16:36,218 INFO L168 Benchmark]: TraceAbstraction took 510.78 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: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2019-01-14 01:16:36,219 INFO L168 Benchmark]: Witness Printer took 55.34 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. [2019-01-14 01:16:36,224 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 225.51 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 28.17 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 15.56 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 295.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -175.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 510.78 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: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * Witness Printer took 55.34 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: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int y, z; [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L19] COND TRUE z >= 0 [L20] y - 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 12 SDslu, 0 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...