./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_037cf51d-9366-48ad-bdd3-45ffc886fce5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_037cf51d-9366-48ad-bdd3-45ffc886fce5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_037cf51d-9366-48ad-bdd3-45ffc886fce5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_037cf51d-9366-48ad-bdd3-45ffc886fce5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_037cf51d-9366-48ad-bdd3-45ffc886fce5/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_037cf51d-9366-48ad-bdd3-45ffc886fce5/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d50c9e2c4d6ea0adce599ea0d63e463f6e274ffe .............................................................................................................................................................................................................................................................................. 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 0.1.23-1dbac8b [2018-10-27 05:47:31,908 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:47:31,911 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:47:31,924 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:47:31,925 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:47:31,926 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:47:31,927 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:47:31,928 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:47:31,933 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:47:31,939 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:47:31,941 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:47:31,942 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:47:31,943 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:47:31,943 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:47:31,944 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:47:31,945 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:47:31,948 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:47:31,951 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:47:31,954 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:47:31,957 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:47:31,960 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:47:31,962 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:47:31,965 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:47:31,967 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:47:31,968 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:47:31,969 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:47:31,970 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:47:31,970 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:47:31,971 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:47:31,972 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:47:31,972 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:47:31,972 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:47:31,972 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:47:31,973 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:47:31,976 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:47:31,977 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:47:31,977 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_037cf51d-9366-48ad-bdd3-45ffc886fce5/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-10-27 05:47:31,995 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:47:31,996 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:47:31,997 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:47:31,997 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 05:47:31,998 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 05:47:31,998 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 05:47:31,998 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 05:47:31,999 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 05:47:31,999 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 05:47:31,999 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 05:47:31,999 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 05:47:32,000 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:47:32,001 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:47:32,002 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:47:32,002 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:47:32,002 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:47:32,002 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:47:32,002 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:47:32,002 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:47:32,003 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:47:32,003 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:47:32,003 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:47:32,003 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:47:32,003 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:47:32,003 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:47:32,003 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:47:32,004 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:47:32,004 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:47:32,004 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:47:32,004 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 05:47:32,004 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:47:32,004 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:47:32,004 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 05:47:32,005 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_037cf51d-9366-48ad-bdd3-45ffc886fce5/bin-2019/utaipan 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 -> Taipan 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 -> d50c9e2c4d6ea0adce599ea0d63e463f6e274ffe [2018-10-27 05:47:32,043 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:47:32,054 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:47:32,057 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:47:32,058 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:47:32,059 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:47:32,060 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_037cf51d-9366-48ad-bdd3-45ffc886fce5/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1_false-no-overflow.c [2018-10-27 05:47:32,108 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_037cf51d-9366-48ad-bdd3-45ffc886fce5/bin-2019/utaipan/data/7a1f7e96f/5fa21aed01e3475c8ecb34f1ccdca238/FLAGa8a3060f0 [2018-10-27 05:47:32,485 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:47:32,486 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_037cf51d-9366-48ad-bdd3-45ffc886fce5/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1_false-no-overflow.c [2018-10-27 05:47:32,492 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_037cf51d-9366-48ad-bdd3-45ffc886fce5/bin-2019/utaipan/data/7a1f7e96f/5fa21aed01e3475c8ecb34f1ccdca238/FLAGa8a3060f0 [2018-10-27 05:47:32,503 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_037cf51d-9366-48ad-bdd3-45ffc886fce5/bin-2019/utaipan/data/7a1f7e96f/5fa21aed01e3475c8ecb34f1ccdca238 [2018-10-27 05:47:32,506 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:47:32,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:47:32,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:47:32,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:47:32,512 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:47:32,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:47:32" (1/1) ... [2018-10-27 05:47:32,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@505a4f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:47:32, skipping insertion in model container [2018-10-27 05:47:32,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:47:32" (1/1) ... [2018-10-27 05:47:32,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:47:32,539 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:47:32,650 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:47:32,652 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:47:32,664 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:47:32,675 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:47:32,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:47:32 WrapperNode [2018-10-27 05:47:32,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:47:32,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:47:32,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:47:32,676 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:47:32,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:47:32" (1/1) ... [2018-10-27 05:47:32,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:47:32" (1/1) ... [2018-10-27 05:47:32,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:47:32,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:47:32,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:47:32,695 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:47:32,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:47:32" (1/1) ... [2018-10-27 05:47:32,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:47:32" (1/1) ... [2018-10-27 05:47:32,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:47:32" (1/1) ... [2018-10-27 05:47:32,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:47:32" (1/1) ... [2018-10-27 05:47:32,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:47:32" (1/1) ... [2018-10-27 05:47:32,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:47:32" (1/1) ... [2018-10-27 05:47:32,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:47:32" (1/1) ... [2018-10-27 05:47:32,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:47:32,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:47:32,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:47:32,715 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:47:32,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:47:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_037cf51d-9366-48ad-bdd3-45ffc886fce5/bin-2019/utaipan/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 [2018-10-27 05:47:32,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:47:32,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:47:32,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:47:32,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:47:32,859 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:47:32,860 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:47:33,268 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:47:33,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:47:33 BoogieIcfgContainer [2018-10-27 05:47:33,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:47:33,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:47:33,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:47:33,272 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:47:33,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:47:32" (1/3) ... [2018-10-27 05:47:33,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f529232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:47:33, skipping insertion in model container [2018-10-27 05:47:33,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:47:32" (2/3) ... [2018-10-27 05:47:33,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f529232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:47:33, skipping insertion in model container [2018-10-27 05:47:33,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:47:33" (3/3) ... [2018-10-27 05:47:33,276 INFO L112 eAbstractionObserver]: Analyzing ICFG BradleyMannaSipma-ICALP2005-Fig1_false-no-overflow.c [2018-10-27 05:47:33,285 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:47:33,293 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2018-10-27 05:47:33,309 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2018-10-27 05:47:33,342 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:47:33,342 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:47:33,342 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:47:33,342 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:47:33,342 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:47:33,342 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:47:33,343 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:47:33,343 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:47:33,361 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-10-27 05:47:33,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-27 05:47:33,367 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:47:33,368 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:47:33,370 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:47:33,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:47:33,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1734695549, now seen corresponding path program 1 times [2018-10-27 05:47:33,379 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:47:33,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:47:33,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:47:33,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:47:33,439 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:47:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:47:33,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:47:33,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:47:33,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:47:33,576 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:47:33,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:47:33,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:47:33,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:47:33,589 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2018-10-27 05:47:33,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:47:33,764 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2018-10-27 05:47:33,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:47:33,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-10-27 05:47:33,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:47:33,774 INFO L225 Difference]: With dead ends: 58 [2018-10-27 05:47:33,774 INFO L226 Difference]: Without dead ends: 44 [2018-10-27 05:47:33,776 INFO L605 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 [2018-10-27 05:47:33,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-27 05:47:33,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 29. [2018-10-27 05:47:33,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-10-27 05:47:33,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-10-27 05:47:33,807 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 7 [2018-10-27 05:47:33,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:47:33,808 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-10-27 05:47:33,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:47:33,808 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-10-27 05:47:33,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-27 05:47:33,808 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:47:33,808 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:47:33,809 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:47:33,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:47:33,809 INFO L82 PathProgramCache]: Analyzing trace with hash -2059012788, now seen corresponding path program 1 times [2018-10-27 05:47:33,809 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:47:33,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:47:33,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:47:33,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:47:33,811 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:47:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 05:47:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 05:47:33,844 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 05:47:33,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:47:33 BoogieIcfgContainer [2018-10-27 05:47:33,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 05:47:33,861 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:47:33,861 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:47:33,861 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:47:33,862 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:47:33" (3/4) ... [2018-10-27 05:47:33,864 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-27 05:47:33,895 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_037cf51d-9366-48ad-bdd3-45ffc886fce5/bin-2019/utaipan/witness.graphml [2018-10-27 05:47:33,896 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:47:33,896 INFO L168 Benchmark]: Toolchain (without parser) took 1389.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 958.5 MB in the beginning and 1.1 GB in the end (delta: -135.6 MB). Peak memory consumption was 6.0 MB. Max. memory is 11.5 GB. [2018-10-27 05:47:33,898 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:47:33,898 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.03 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 946.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-10-27 05:47:33,899 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.34 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:47:33,899 INFO L168 Benchmark]: Boogie Preprocessor took 19.34 ms. Allocated memory is still 1.0 GB. Free memory was 946.4 MB in the beginning and 941.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 05:47:33,900 INFO L168 Benchmark]: RCFGBuilder took 554.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2018-10-27 05:47:33,900 INFO L168 Benchmark]: TraceAbstraction took 591.48 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-10-27 05:47:33,901 INFO L168 Benchmark]: Witness Printer took 34.49 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. [2018-10-27 05:47:33,906 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 168.03 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 946.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.34 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.34 ms. Allocated memory is still 1.0 GB. Free memory was 946.4 MB in the beginning and 941.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 554.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 591.48 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 34.49 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: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int x, y, N; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] N = __VERIFIER_nondet_int() [L21] COND TRUE N < 536870912 && x < 536870912 && y < 536870912 && x >= -1073741824 VAL [N=0, x=-1, y=-2147483648] [L22] x + y VAL [N=0, x=-1, y=-2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 35 locations, 10 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 22 SDslu, 12 SDs, 0 SdLazy, 39 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 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...