./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_b5_o10_false-no-overflow.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_009df374-6a6f-4a3c-b250-be05b96e6407/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_009df374-6a6f-4a3c-b250-be05b96e6407/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_009df374-6a6f-4a3c-b250-be05b96e6407/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_009df374-6a6f-4a3c-b250-be05b96e6407/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b5_o10_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_009df374-6a6f-4a3c-b250-be05b96e6407/bin-2019/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_009df374-6a6f-4a3c-b250-be05b96e6407/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 32bit --witnessprinter.graph.data.programhash 08bbe2c494adbfbcc4d1f2aa863ee46abea55656 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-aa41828 [2018-11-22 21:55:16,817 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 21:55:16,818 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 21:55:16,824 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 21:55:16,824 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 21:55:16,825 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 21:55:16,826 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 21:55:16,827 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 21:55:16,828 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 21:55:16,829 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 21:55:16,829 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 21:55:16,830 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 21:55:16,830 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 21:55:16,831 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 21:55:16,831 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 21:55:16,832 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 21:55:16,833 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 21:55:16,834 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 21:55:16,835 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 21:55:16,836 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 21:55:16,837 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 21:55:16,838 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 21:55:16,839 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 21:55:16,839 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 21:55:16,839 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 21:55:16,840 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 21:55:16,840 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 21:55:16,841 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 21:55:16,841 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 21:55:16,842 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 21:55:16,842 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 21:55:16,843 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 21:55:16,843 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 21:55:16,843 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 21:55:16,844 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 21:55:16,844 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 21:55:16,844 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_009df374-6a6f-4a3c-b250-be05b96e6407/bin-2019/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2018-11-22 21:55:16,852 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 21:55:16,853 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 21:55:16,853 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 21:55:16,853 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 21:55:16,854 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 21:55:16,854 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 21:55:16,854 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 21:55:16,854 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-22 21:55:16,854 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 21:55:16,854 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 21:55:16,854 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-22 21:55:16,855 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-22 21:55:16,855 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 21:55:16,855 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 21:55:16,855 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 21:55:16,855 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-22 21:55:16,856 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 21:55:16,856 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 21:55:16,856 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 21:55:16,856 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 21:55:16,856 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 21:55:16,856 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 21:55:16,856 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-22 21:55:16,856 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 21:55:16,857 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 21:55:16,857 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 21:55:16,857 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 21:55:16,857 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 21:55:16,857 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 21:55:16,857 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 21:55:16,857 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 21:55:16,858 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:55:16,858 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 21:55:16,858 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 21:55:16,858 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 21:55:16,858 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-22 21:55:16,858 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 21:55:16,858 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 21:55:16,858 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-22 21:55:16,859 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_009df374-6a6f-4a3c-b250-be05b96e6407/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08bbe2c494adbfbcc4d1f2aa863ee46abea55656 [2018-11-22 21:55:16,882 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 21:55:16,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 21:55:16,894 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 21:55:16,895 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 21:55:16,895 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 21:55:16,896 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_009df374-6a6f-4a3c-b250-be05b96e6407/bin-2019/utaipan/../../sv-benchmarks/c/recursive-simple/id_b5_o10_false-no-overflow.c [2018-11-22 21:55:16,942 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_009df374-6a6f-4a3c-b250-be05b96e6407/bin-2019/utaipan/data/f0ebfa87c/9cbab58ad8e043519cfd5985f2933f1b/FLAG9c61b83f3 [2018-11-22 21:55:17,334 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 21:55:17,334 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_009df374-6a6f-4a3c-b250-be05b96e6407/sv-benchmarks/c/recursive-simple/id_b5_o10_false-no-overflow.c [2018-11-22 21:55:17,338 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_009df374-6a6f-4a3c-b250-be05b96e6407/bin-2019/utaipan/data/f0ebfa87c/9cbab58ad8e043519cfd5985f2933f1b/FLAG9c61b83f3 [2018-11-22 21:55:17,348 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_009df374-6a6f-4a3c-b250-be05b96e6407/bin-2019/utaipan/data/f0ebfa87c/9cbab58ad8e043519cfd5985f2933f1b [2018-11-22 21:55:17,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 21:55:17,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 21:55:17,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 21:55:17,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 21:55:17,354 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 21:55:17,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:55:17" (1/1) ... [2018-11-22 21:55:17,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@118f6777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:17, skipping insertion in model container [2018-11-22 21:55:17,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:55:17" (1/1) ... [2018-11-22 21:55:17,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 21:55:17,372 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 21:55:17,475 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:55:17,477 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 21:55:17,486 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:55:17,494 INFO L195 MainTranslator]: Completed translation [2018-11-22 21:55:17,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:17 WrapperNode [2018-11-22 21:55:17,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 21:55:17,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 21:55:17,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 21:55:17,495 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 21:55:17,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:17" (1/1) ... [2018-11-22 21:55:17,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:17" (1/1) ... [2018-11-22 21:55:17,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 21:55:17,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 21:55:17,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 21:55:17,506 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 21:55:17,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:17" (1/1) ... [2018-11-22 21:55:17,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:17" (1/1) ... [2018-11-22 21:55:17,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:17" (1/1) ... [2018-11-22 21:55:17,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:17" (1/1) ... [2018-11-22 21:55:17,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:17" (1/1) ... [2018-11-22 21:55:17,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:17" (1/1) ... [2018-11-22 21:55:17,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:17" (1/1) ... [2018-11-22 21:55:17,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 21:55:17,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 21:55:17,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 21:55:17,516 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 21:55:17,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_009df374-6a6f-4a3c-b250-be05b96e6407/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 [2018-11-22 21:55:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 21:55:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 21:55:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 21:55:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 21:55:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 21:55:17,593 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 21:55:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-11-22 21:55:17,593 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-11-22 21:55:17,685 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 21:55:17,685 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-22 21:55:17,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:55:17 BoogieIcfgContainer [2018-11-22 21:55:17,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 21:55:17,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 21:55:17,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 21:55:17,688 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 21:55:17,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:55:17" (1/3) ... [2018-11-22 21:55:17,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ee3c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:55:17, skipping insertion in model container [2018-11-22 21:55:17,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:17" (2/3) ... [2018-11-22 21:55:17,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ee3c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:55:17, skipping insertion in model container [2018-11-22 21:55:17,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:55:17" (3/3) ... [2018-11-22 21:55:17,690 INFO L112 eAbstractionObserver]: Analyzing ICFG id_b5_o10_false-no-overflow.c [2018-11-22 21:55:17,699 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 21:55:17,705 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-22 21:55:17,716 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-22 21:55:17,740 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 21:55:17,740 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 21:55:17,740 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 21:55:17,740 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 21:55:17,740 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 21:55:17,740 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 21:55:17,741 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 21:55:17,741 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 21:55:17,751 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-22 21:55:17,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-22 21:55:17,754 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:55:17,754 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:55:17,756 INFO L423 AbstractCegarLoop]: === Iteration 1 === [idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-22 21:55:17,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:55:17,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1269657425, now seen corresponding path program 1 times [2018-11-22 21:55:17,761 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:55:17,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:55:17,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:55:17,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:55:17,792 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:55:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:55:17,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:55:17,856 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:55:17,857 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 21:55:17,857 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:55:17,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-22 21:55:17,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-22 21:55:17,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-22 21:55:17,872 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 5 states. [2018-11-22 21:55:17,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:55:17,927 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2018-11-22 21:55:17,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-22 21:55:17,928 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-22 21:55:17,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:55:17,934 INFO L225 Difference]: With dead ends: 32 [2018-11-22 21:55:17,934 INFO L226 Difference]: Without dead ends: 20 [2018-11-22 21:55:17,937 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-22 21:55:17,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-22 21:55:17,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-22 21:55:17,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-22 21:55:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-22 21:55:17,963 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 9 [2018-11-22 21:55:17,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:55:17,963 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-22 21:55:17,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-22 21:55:17,964 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-22 21:55:17,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-22 21:55:17,964 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:55:17,964 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:55:17,965 INFO L423 AbstractCegarLoop]: === Iteration 2 === [idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-22 21:55:17,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:55:17,965 INFO L82 PathProgramCache]: Analyzing trace with hash -704674457, now seen corresponding path program 1 times [2018-11-22 21:55:17,965 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:55:17,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:55:17,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:55:17,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:55:17,966 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:55:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:55:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:55:17,987 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #37#return; [?] CALL call #t~ret3 := main(); [?] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~input~0 := #t~nondet1;havoc #t~nondet1; VAL [main_~input~0=(- 2147483648)] [?] CALL call #t~ret2 := id(~input~0); VAL [|id_#in~x|=(- 2147483648)] [?] ~x := #in~x; VAL [id_~x=(- 2147483648), |id_#in~x|=(- 2147483648)] [?] assume !(0 == ~x); VAL [id_~x=(- 2147483648), |id_#in~x|=(- 2147483648)] [?] assume ~x - 1 <= 2147483647; VAL [id_~x=(- 2147483648), |id_#in~x|=(- 2147483648)] [?] assume !(~x - 1 >= -2147483648); VAL [id_~x=(- 2147483648), |id_#in~x|=(- 2147483648)] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret3 := main(); [L12] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L12] ~input~0 := #t~nondet1; [L12] havoc #t~nondet1; VAL [~input~0=-2147483648] [L13] CALL call #t~ret2 := id(~input~0); VAL [#in~x=-2147483648] [L4-L9] ~x := #in~x; VAL [#in~x=-2147483648, ~x=-2147483648] [L5] assume !(0 == ~x); VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 <= 2147483647; VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 >= -2147483648; VAL [#in~x=-2147483648, ~x=-2147483648] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret3 := main(); [L12] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L12] ~input~0 := #t~nondet1; [L12] havoc #t~nondet1; VAL [~input~0=-2147483648] [L13] CALL call #t~ret2 := id(~input~0); VAL [#in~x=-2147483648] [L4-L9] ~x := #in~x; VAL [#in~x=-2147483648, ~x=-2147483648] [L5] assume !(0 == ~x); VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 <= 2147483647; VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 >= -2147483648; VAL [#in~x=-2147483648, ~x=-2147483648] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret3 := main(); [L12] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L12] ~input~0 := #t~nondet1; [L12] havoc #t~nondet1; VAL [~input~0=-2147483648] [L13] CALL call #t~ret2 := id(~input~0); VAL [#in~x=-2147483648] [L4-L9] ~x := #in~x; VAL [#in~x=-2147483648, ~x=-2147483648] [L5] COND FALSE !(0 == ~x) VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 <= 2147483647; VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 >= -2147483648; VAL [#in~x=-2147483648, ~x=-2147483648] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret3 := main(); [L12] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L12] ~input~0 := #t~nondet1; [L12] havoc #t~nondet1; VAL [~input~0=-2147483648] [L13] CALL call #t~ret2 := id(~input~0); VAL [#in~x=-2147483648] [L4-L9] ~x := #in~x; VAL [#in~x=-2147483648, ~x=-2147483648] [L5] COND FALSE !(0 == ~x) VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 <= 2147483647; VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 >= -2147483648; VAL [#in~x=-2147483648, ~x=-2147483648] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret3 := main(); [L12] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L12] ~input~0 := #t~nondet1; [L12] havoc #t~nondet1; VAL [~input~0=-2147483648] [L13] CALL call #t~ret2 := id(~input~0); VAL [#in~x=-2147483648] [L4-L9] ~x := #in~x; VAL [#in~x=-2147483648, ~x=-2147483648] [L5] COND FALSE !(0 == ~x) VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 <= 2147483647; VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 >= -2147483648; VAL [#in~x=-2147483648, ~x=-2147483648] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret3 := main(); [L12] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L12] ~input~0 := #t~nondet1; [L12] havoc #t~nondet1; VAL [~input~0=-2147483648] [L13] CALL call #t~ret2 := id(~input~0); VAL [#in~x=-2147483648] [L4-L9] ~x := #in~x; VAL [#in~x=-2147483648, ~x=-2147483648] [L5] COND FALSE !(0 == ~x) VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 <= 2147483647; VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 >= -2147483648; VAL [#in~x=-2147483648, ~x=-2147483648] [L12] int input = __VERIFIER_nondet_int(); [L13] CALL id(input) VAL [\old(x)=-2147483648] [L5] COND FALSE !(x==0) VAL [\old(x)=-2147483648, x=-2147483648] [L6] x-1 VAL [\old(x)=-2147483648, x=-2147483648] ----- [2018-11-22 21:55:18,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:55:18 BoogieIcfgContainer [2018-11-22 21:55:18,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 21:55:18,005 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 21:55:18,005 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 21:55:18,005 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 21:55:18,006 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:55:17" (3/4) ... [2018-11-22 21:55:18,007 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #37#return; [?] CALL call #t~ret3 := main(); [?] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~input~0 := #t~nondet1;havoc #t~nondet1; VAL [main_~input~0=(- 2147483648)] [?] CALL call #t~ret2 := id(~input~0); VAL [|id_#in~x|=(- 2147483648)] [?] ~x := #in~x; VAL [id_~x=(- 2147483648), |id_#in~x|=(- 2147483648)] [?] assume !(0 == ~x); VAL [id_~x=(- 2147483648), |id_#in~x|=(- 2147483648)] [?] assume ~x - 1 <= 2147483647; VAL [id_~x=(- 2147483648), |id_#in~x|=(- 2147483648)] [?] assume !(~x - 1 >= -2147483648); VAL [id_~x=(- 2147483648), |id_#in~x|=(- 2147483648)] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret3 := main(); [L12] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L12] ~input~0 := #t~nondet1; [L12] havoc #t~nondet1; VAL [~input~0=-2147483648] [L13] CALL call #t~ret2 := id(~input~0); VAL [#in~x=-2147483648] [L4-L9] ~x := #in~x; VAL [#in~x=-2147483648, ~x=-2147483648] [L5] assume !(0 == ~x); VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 <= 2147483647; VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 >= -2147483648; VAL [#in~x=-2147483648, ~x=-2147483648] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret3 := main(); [L12] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L12] ~input~0 := #t~nondet1; [L12] havoc #t~nondet1; VAL [~input~0=-2147483648] [L13] CALL call #t~ret2 := id(~input~0); VAL [#in~x=-2147483648] [L4-L9] ~x := #in~x; VAL [#in~x=-2147483648, ~x=-2147483648] [L5] assume !(0 == ~x); VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 <= 2147483647; VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 >= -2147483648; VAL [#in~x=-2147483648, ~x=-2147483648] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret3 := main(); [L12] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L12] ~input~0 := #t~nondet1; [L12] havoc #t~nondet1; VAL [~input~0=-2147483648] [L13] CALL call #t~ret2 := id(~input~0); VAL [#in~x=-2147483648] [L4-L9] ~x := #in~x; VAL [#in~x=-2147483648, ~x=-2147483648] [L5] COND FALSE !(0 == ~x) VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 <= 2147483647; VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 >= -2147483648; VAL [#in~x=-2147483648, ~x=-2147483648] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret3 := main(); [L12] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L12] ~input~0 := #t~nondet1; [L12] havoc #t~nondet1; VAL [~input~0=-2147483648] [L13] CALL call #t~ret2 := id(~input~0); VAL [#in~x=-2147483648] [L4-L9] ~x := #in~x; VAL [#in~x=-2147483648, ~x=-2147483648] [L5] COND FALSE !(0 == ~x) VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 <= 2147483647; VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 >= -2147483648; VAL [#in~x=-2147483648, ~x=-2147483648] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret3 := main(); [L12] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L12] ~input~0 := #t~nondet1; [L12] havoc #t~nondet1; VAL [~input~0=-2147483648] [L13] CALL call #t~ret2 := id(~input~0); VAL [#in~x=-2147483648] [L4-L9] ~x := #in~x; VAL [#in~x=-2147483648, ~x=-2147483648] [L5] COND FALSE !(0 == ~x) VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 <= 2147483647; VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 >= -2147483648; VAL [#in~x=-2147483648, ~x=-2147483648] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret3 := main(); [L12] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L12] ~input~0 := #t~nondet1; [L12] havoc #t~nondet1; VAL [~input~0=-2147483648] [L13] CALL call #t~ret2 := id(~input~0); VAL [#in~x=-2147483648] [L4-L9] ~x := #in~x; VAL [#in~x=-2147483648, ~x=-2147483648] [L5] COND FALSE !(0 == ~x) VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 <= 2147483647; VAL [#in~x=-2147483648, ~x=-2147483648] [L6] assert ~x - 1 >= -2147483648; VAL [#in~x=-2147483648, ~x=-2147483648] [L12] int input = __VERIFIER_nondet_int(); [L13] CALL id(input) VAL [\old(x)=-2147483648] [L5] COND FALSE !(x==0) VAL [\old(x)=-2147483648, x=-2147483648] [L6] x-1 VAL [\old(x)=-2147483648, x=-2147483648] ----- [2018-11-22 21:55:18,039 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_009df374-6a6f-4a3c-b250-be05b96e6407/bin-2019/utaipan/witness.graphml [2018-11-22 21:55:18,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 21:55:18,039 INFO L168 Benchmark]: Toolchain (without parser) took 689.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 960.9 MB in the beginning and 1.1 GB in the end (delta: -125.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2018-11-22 21:55:18,040 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:55:18,041 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.04 ms. Allocated memory is still 1.0 GB. Free memory was 960.9 MB in the beginning and 950.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:55:18,041 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.17 ms. Allocated memory is still 1.0 GB. Free memory is still 950.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:55:18,041 INFO L168 Benchmark]: Boogie Preprocessor took 9.56 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 944.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-22 21:55:18,041 INFO L168 Benchmark]: RCFGBuilder took 169.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-22 21:55:18,042 INFO L168 Benchmark]: TraceAbstraction took 319.29 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. [2018-11-22 21:55:18,042 INFO L168 Benchmark]: Witness Printer took 33.82 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-22 21:55:18,045 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 143.04 ms. Allocated memory is still 1.0 GB. Free memory was 960.9 MB in the beginning and 950.1 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 11.17 ms. Allocated memory is still 1.0 GB. Free memory is still 950.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.56 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 944.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 169.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 319.29 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 33.82 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int input = __VERIFIER_nondet_int(); [L13] CALL id(input) VAL [\old(x)=-2147483648] [L5] COND FALSE !(x==0) VAL [\old(x)=-2147483648, x=-2147483648] [L6] x-1 VAL [\old(x)=-2147483648, x=-2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 4 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 30 SDslu, 38 SDs, 0 SdLazy, 19 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 128 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...