./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/joey_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_181c95e6-be02-4c82-8ede-fe8455c7e786/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_181c95e6-be02-4c82-8ede-fe8455c7e786/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_181c95e6-be02-4c82-8ede-fe8455c7e786/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_181c95e6-be02-4c82-8ede-fe8455c7e786/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/joey_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_181c95e6-be02-4c82-8ede-fe8455c7e786/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_181c95e6-be02-4c82-8ede-fe8455c7e786/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 6360f720317c1229a4bb277806239106bfb4e5c0 .............................................................................................................................................................................................................................................................................. 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 0.1.23-635dfa2 [2018-12-03 07:20:25,473 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 07:20:25,474 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 07:20:25,480 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 07:20:25,480 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 07:20:25,481 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 07:20:25,482 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 07:20:25,483 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 07:20:25,484 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 07:20:25,484 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 07:20:25,485 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 07:20:25,485 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 07:20:25,485 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 07:20:25,486 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 07:20:25,486 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 07:20:25,487 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 07:20:25,487 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 07:20:25,488 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 07:20:25,489 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 07:20:25,490 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 07:20:25,491 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 07:20:25,492 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 07:20:25,493 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 07:20:25,493 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 07:20:25,493 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 07:20:25,494 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 07:20:25,494 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 07:20:25,495 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 07:20:25,495 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 07:20:25,496 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 07:20:25,496 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 07:20:25,496 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 07:20:25,496 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 07:20:25,497 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 07:20:25,497 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 07:20:25,498 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 07:20:25,498 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_181c95e6-be02-4c82-8ede-fe8455c7e786/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-03 07:20:25,505 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 07:20:25,505 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 07:20:25,506 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 07:20:25,506 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 07:20:25,506 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 07:20:25,506 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 07:20:25,506 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 07:20:25,506 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 07:20:25,506 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 07:20:25,506 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 07:20:25,507 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 07:20:25,507 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 07:20:25,507 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 07:20:25,507 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 07:20:25,507 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-03 07:20:25,507 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 07:20:25,508 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 07:20:25,508 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 07:20:25,508 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 07:20:25,508 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 07:20:25,508 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-03 07:20:25,508 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 07:20:25,508 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 07:20:25,509 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 07:20:25,509 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 07:20:25,509 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 07:20:25,509 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 07:20:25,509 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:20:25,509 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 07:20:25,509 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 07:20:25,509 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 07:20:25,509 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 07:20:25,510 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 07:20:25,510 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 07:20:25,510 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 07:20:25,510 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_181c95e6-be02-4c82-8ede-fe8455c7e786/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 -> 6360f720317c1229a4bb277806239106bfb4e5c0 [2018-12-03 07:20:25,527 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 07:20:25,534 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 07:20:25,536 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 07:20:25,537 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 07:20:25,537 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 07:20:25,537 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_181c95e6-be02-4c82-8ede-fe8455c7e786/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/joey_false-no-overflow.c [2018-12-03 07:20:25,571 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_181c95e6-be02-4c82-8ede-fe8455c7e786/bin-2019/utaipan/data/917ab00f5/f18fdef4e9844c7a9a3739e88f5b9d0c/FLAG3e8500a32 [2018-12-03 07:20:25,882 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 07:20:25,882 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_181c95e6-be02-4c82-8ede-fe8455c7e786/sv-benchmarks/c/termination-crafted-lit/joey_false-no-overflow.c [2018-12-03 07:20:25,886 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_181c95e6-be02-4c82-8ede-fe8455c7e786/bin-2019/utaipan/data/917ab00f5/f18fdef4e9844c7a9a3739e88f5b9d0c/FLAG3e8500a32 [2018-12-03 07:20:25,894 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_181c95e6-be02-4c82-8ede-fe8455c7e786/bin-2019/utaipan/data/917ab00f5/f18fdef4e9844c7a9a3739e88f5b9d0c [2018-12-03 07:20:25,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 07:20:25,897 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 07:20:25,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 07:20:25,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 07:20:25,899 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 07:20:25,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:20:25" (1/1) ... [2018-12-03 07:20:25,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e0d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:20:25, skipping insertion in model container [2018-12-03 07:20:25,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:20:25" (1/1) ... [2018-12-03 07:20:25,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 07:20:25,913 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 07:20:25,995 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:20:25,997 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 07:20:26,008 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:20:26,017 INFO L195 MainTranslator]: Completed translation [2018-12-03 07:20:26,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:20:26 WrapperNode [2018-12-03 07:20:26,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 07:20:26,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 07:20:26,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 07:20:26,017 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 07:20:26,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:20:26" (1/1) ... [2018-12-03 07:20:26,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:20:26" (1/1) ... [2018-12-03 07:20:26,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 07:20:26,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 07:20:26,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 07:20:26,029 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 07:20:26,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:20:26" (1/1) ... [2018-12-03 07:20:26,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:20:26" (1/1) ... [2018-12-03 07:20:26,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:20:26" (1/1) ... [2018-12-03 07:20:26,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:20:26" (1/1) ... [2018-12-03 07:20:26,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:20:26" (1/1) ... [2018-12-03 07:20:26,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:20:26" (1/1) ... [2018-12-03 07:20:26,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:20:26" (1/1) ... [2018-12-03 07:20:26,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 07:20:26,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 07:20:26,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 07:20:26,040 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 07:20:26,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:20:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_181c95e6-be02-4c82-8ede-fe8455c7e786/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 [2018-12-03 07:20:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2018-12-03 07:20:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2018-12-03 07:20:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 07:20:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 07:20:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 07:20:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 07:20:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 07:20:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 07:20:26,207 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 07:20:26,207 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-03 07:20:26,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:20:26 BoogieIcfgContainer [2018-12-03 07:20:26,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 07:20:26,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 07:20:26,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 07:20:26,210 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 07:20:26,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 07:20:25" (1/3) ... [2018-12-03 07:20:26,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1cdf00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:20:26, skipping insertion in model container [2018-12-03 07:20:26,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:20:26" (2/3) ... [2018-12-03 07:20:26,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1cdf00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:20:26, skipping insertion in model container [2018-12-03 07:20:26,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:20:26" (3/3) ... [2018-12-03 07:20:26,212 INFO L112 eAbstractionObserver]: Analyzing ICFG joey_false-no-overflow.c [2018-12-03 07:20:26,218 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 07:20:26,223 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-12-03 07:20:26,232 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-12-03 07:20:26,251 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 07:20:26,251 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 07:20:26,251 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 07:20:26,251 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 07:20:26,251 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 07:20:26,251 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 07:20:26,251 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 07:20:26,251 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 07:20:26,262 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-12-03 07:20:26,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-03 07:20:26,265 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:20:26,266 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:20:26,267 INFO L423 AbstractCegarLoop]: === Iteration 1 === [recErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-03 07:20:26,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:20:26,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1079401735, now seen corresponding path program 1 times [2018-12-03 07:20:26,272 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:20:26,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:20:26,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:20:26,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:20:26,303 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:20:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:20:26,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:20:26,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:20:26,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 07:20:26,405 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:20:26,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 07:20:26,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 07:20:26,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-03 07:20:26,417 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 7 states. [2018-12-03 07:20:26,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:20:26,515 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2018-12-03 07:20:26,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 07:20:26,516 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-12-03 07:20:26,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:20:26,523 INFO L225 Difference]: With dead ends: 71 [2018-12-03 07:20:26,523 INFO L226 Difference]: Without dead ends: 56 [2018-12-03 07:20:26,525 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-12-03 07:20:26,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-12-03 07:20:26,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2018-12-03 07:20:26,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-12-03 07:20:26,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2018-12-03 07:20:26,553 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 10 [2018-12-03 07:20:26,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:20:26,553 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2018-12-03 07:20:26,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 07:20:26,553 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2018-12-03 07:20:26,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-03 07:20:26,554 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:20:26,554 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:20:26,554 INFO L423 AbstractCegarLoop]: === Iteration 2 === [recErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-03 07:20:26,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:20:26,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1079401959, now seen corresponding path program 1 times [2018-12-03 07:20:26,554 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:20:26,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:20:26,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:20:26,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:20:26,555 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:20:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 07:20:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 07:20:26,574 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 07:20:26,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 07:20:26 BoogieIcfgContainer [2018-12-03 07:20:26,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 07:20:26,588 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 07:20:26,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 07:20:26,588 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 07:20:26,588 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:20:26" (3/4) ... [2018-12-03 07:20:26,589 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-03 07:20:26,612 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_181c95e6-be02-4c82-8ede-fe8455c7e786/bin-2019/utaipan/witness.graphml [2018-12-03 07:20:26,612 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 07:20:26,613 INFO L168 Benchmark]: Toolchain (without parser) took 716.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -96.8 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-12-03 07:20:26,613 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:20:26,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 119.81 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-03 07:20:26,614 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.67 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:20:26,614 INFO L168 Benchmark]: Boogie Preprocessor took 10.41 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:20:26,614 INFO L168 Benchmark]: RCFGBuilder took 167.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -160.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-03 07:20:26,615 INFO L168 Benchmark]: TraceAbstraction took 379.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 49.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 11.5 GB. [2018-12-03 07:20:26,615 INFO L168 Benchmark]: Witness Printer took 24.57 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-03 07:20:26,617 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 119.81 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 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 11.67 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.41 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 167.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -160.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 379.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 49.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 11.5 GB. * Witness Printer took 24.57 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y; VAL [x=2147483647] [L22] CALL rec(x) VAL [\old(x)=2147483647] [L10] COND FALSE !(x <= 0) VAL [\old(x)=2147483647, x=2147483647] [L12] COND FALSE !(x%2 == 0) VAL [\old(x)=2147483647, x=2147483647] [L15] ++x VAL [\old(x)=2147483647, x=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 38 locations, 8 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 33 SDtfs, 44 SDslu, 87 SDs, 0 SdLazy, 68 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=1, 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 279 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...