./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/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 3428809e66c8ffa9373e37ec3d02a46642c7f8bc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-5842f4b [2018-11-18 11:01:43,832 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:01:43,833 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:01:43,839 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:01:43,839 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:01:43,840 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:01:43,841 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:01:43,842 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:01:43,843 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:01:43,844 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:01:43,845 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:01:43,845 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:01:43,846 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:01:43,846 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:01:43,847 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:01:43,847 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:01:43,849 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:01:43,850 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:01:43,851 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:01:43,853 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:01:43,853 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:01:43,854 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:01:43,856 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:01:43,856 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:01:43,856 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:01:43,857 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:01:43,858 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:01:43,858 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:01:43,859 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:01:43,859 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:01:43,860 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:01:43,861 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:01:43,861 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:01:43,861 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:01:43,862 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:01:43,863 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:01:43,863 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-18 11:01:43,872 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:01:43,873 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:01:43,873 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:01:43,873 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:01:43,874 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:01:43,874 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:01:43,874 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:01:43,874 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 11:01:43,874 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:01:43,874 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:01:43,874 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 11:01:43,875 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 11:01:43,875 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:01:43,875 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:01:43,875 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:01:43,876 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:01:43,877 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:01:43,877 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:01:43,877 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:01:43,878 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:01:43,878 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 11:01:43,878 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:01:43,878 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:01:43,878 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:01:43,878 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:01:43,879 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:01:43,879 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:01:43,879 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:01:43,879 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:01:43,879 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:01:43,879 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:01:43,879 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:01:43,880 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 11:01:43,880 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:01:43,880 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:01:43,880 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 11:01:43,880 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_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/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 -> 3428809e66c8ffa9373e37ec3d02a46642c7f8bc [2018-11-18 11:01:43,904 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:01:43,913 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:01:43,915 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:01:43,916 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:01:43,917 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:01:43,917 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7_false-no-overflow.c [2018-11-18 11:01:43,963 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/bin-2019/utaipan/data/29c7c2fff/f4348ea01a9d451488d8b558131922c3/FLAG4a2490c33 [2018-11-18 11:01:44,257 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:01:44,257 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7_false-no-overflow.c [2018-11-18 11:01:44,260 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/bin-2019/utaipan/data/29c7c2fff/f4348ea01a9d451488d8b558131922c3/FLAG4a2490c33 [2018-11-18 11:01:44,269 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/bin-2019/utaipan/data/29c7c2fff/f4348ea01a9d451488d8b558131922c3 [2018-11-18 11:01:44,272 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:01:44,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:01:44,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:01:44,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:01:44,275 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:01:44,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:01:44" (1/1) ... [2018-11-18 11:01:44,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f82e70c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:44, skipping insertion in model container [2018-11-18 11:01:44,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:01:44" (1/1) ... [2018-11-18 11:01:44,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:01:44,295 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:01:44,425 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:01:44,427 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:01:44,440 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:01:44,451 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:01:44,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:44 WrapperNode [2018-11-18 11:01:44,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:01:44,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:01:44,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:01:44,452 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:01:44,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:44" (1/1) ... [2018-11-18 11:01:44,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:44" (1/1) ... [2018-11-18 11:01:44,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:01:44,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:01:44,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:01:44,471 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:01:44,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:44" (1/1) ... [2018-11-18 11:01:44,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:44" (1/1) ... [2018-11-18 11:01:44,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:44" (1/1) ... [2018-11-18 11:01:44,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:44" (1/1) ... [2018-11-18 11:01:44,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:44" (1/1) ... [2018-11-18 11:01:44,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:44" (1/1) ... [2018-11-18 11:01:44,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:44" (1/1) ... [2018-11-18 11:01:44,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:01:44,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:01:44,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:01:44,524 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:01:44,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/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 [2018-11-18 11:01:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 11:01:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:01:44,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:01:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:01:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:01:44,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:01:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 11:01:44,569 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:01:44,569 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:01:44,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:01:44,683 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:01:44,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:01:44 BoogieIcfgContainer [2018-11-18 11:01:44,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:01:44,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:01:44,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:01:44,686 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:01:44,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:01:44" (1/3) ... [2018-11-18 11:01:44,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65da813c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:01:44, skipping insertion in model container [2018-11-18 11:01:44,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:01:44" (2/3) ... [2018-11-18 11:01:44,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65da813c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:01:44, skipping insertion in model container [2018-11-18 11:01:44,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:01:44" (3/3) ... [2018-11-18 11:01:44,688 INFO L112 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig7_false-no-overflow.c [2018-11-18 11:01:44,694 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:01:44,699 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-18 11:01:44,707 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-18 11:01:44,726 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:01:44,727 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:01:44,727 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:01:44,727 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:01:44,727 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:01:44,727 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:01:44,727 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:01:44,727 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:01:44,737 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-11-18 11:01:44,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 11:01:44,740 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:01:44,740 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:01:44,742 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:01:44,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:44,746 INFO L82 PathProgramCache]: Analyzing trace with hash -2046627484, now seen corresponding path program 1 times [2018-11-18 11:01:44,747 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:01:44,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:44,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:01:44,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:44,776 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:01:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:01:44,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:01:44,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:01:44,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:01:44,870 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:01:44,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:01:44,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:01:44,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:01:44,882 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 4 states. [2018-11-18 11:01:44,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:01:44,977 INFO L93 Difference]: Finished difference Result 70 states and 82 transitions. [2018-11-18 11:01:44,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:01:44,978 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-18 11:01:44,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:01:44,986 INFO L225 Difference]: With dead ends: 70 [2018-11-18 11:01:44,986 INFO L226 Difference]: Without dead ends: 43 [2018-11-18 11:01:44,988 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:01:45,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-18 11:01:45,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2018-11-18 11:01:45,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-18 11:01:45,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2018-11-18 11:01:45,018 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 11 [2018-11-18 11:01:45,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:01:45,019 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2018-11-18 11:01:45,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:01:45,019 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2018-11-18 11:01:45,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 11:01:45,020 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:01:45,020 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:01:45,020 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:01:45,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:45,020 INFO L82 PathProgramCache]: Analyzing trace with hash 226853634, now seen corresponding path program 1 times [2018-11-18 11:01:45,020 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:01:45,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:45,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:01:45,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:45,022 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:01:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:01:45,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:01:45,052 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:01:45,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:01:45,052 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:01:45,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:01:45,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:01:45,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:01:45,054 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 3 states. [2018-11-18 11:01:45,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:01:45,080 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2018-11-18 11:01:45,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:01:45,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-11-18 11:01:45,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:01:45,081 INFO L225 Difference]: With dead ends: 43 [2018-11-18 11:01:45,081 INFO L226 Difference]: Without dead ends: 31 [2018-11-18 11:01:45,082 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:01:45,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-18 11:01:45,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-18 11:01:45,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-18 11:01:45,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-11-18 11:01:45,085 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 14 [2018-11-18 11:01:45,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:01:45,086 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-11-18 11:01:45,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:01:45,086 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-11-18 11:01:45,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 11:01:45,086 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:01:45,086 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:01:45,087 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:01:45,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:45,087 INFO L82 PathProgramCache]: Analyzing trace with hash -656570183, now seen corresponding path program 1 times [2018-11-18 11:01:45,087 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:01:45,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:45,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:01:45,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:45,088 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:01:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:01:45,144 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:01:45,144 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:01:45,144 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:01:45,145 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-11-18 11:01:45,147 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [18], [20], [21], [22], [24], [57], [58], [59] [2018-11-18 11:01:45,171 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:01:45,171 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:01:45,295 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 11:01:45,296 INFO L272 AbstractInterpreter]: Visited 13 different actions 37 times. Merged at 6 different actions 22 times. Never widened. Performed 186 root evaluator evaluations with a maximum evaluation depth of 3. Performed 186 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 17 variables. [2018-11-18 11:01:45,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:45,309 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 11:01:45,309 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:01:45,309 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:01:45,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:01:45,315 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 11:01:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:01:45,336 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:01:45,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:01:45,378 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:01:45,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:01:45,464 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 11:01:45,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-11-18 11:01:45,465 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 11:01:45,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 11:01:45,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 11:01:45,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-18 11:01:45,466 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 8 states. [2018-11-18 11:01:45,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:01:45,509 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2018-11-18 11:01:45,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 11:01:45,510 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-11-18 11:01:45,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:01:45,510 INFO L225 Difference]: With dead ends: 50 [2018-11-18 11:01:45,511 INFO L226 Difference]: Without dead ends: 49 [2018-11-18 11:01:45,511 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2018-11-18 11:01:45,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-18 11:01:45,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 35. [2018-11-18 11:01:45,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-18 11:01:45,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2018-11-18 11:01:45,514 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 16 [2018-11-18 11:01:45,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:01:45,514 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2018-11-18 11:01:45,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 11:01:45,514 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-11-18 11:01:45,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 11:01:45,515 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:01:45,515 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:01:45,515 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:01:45,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:45,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1121160861, now seen corresponding path program 1 times [2018-11-18 11:01:45,516 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:01:45,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:45,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:01:45,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:45,516 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:01:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:01:45,558 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:01:45,558 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:01:45,558 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:01:45,558 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-11-18 11:01:45,558 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [18], [20], [22], [23], [24], [57], [58], [59] [2018-11-18 11:01:45,559 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:01:45,559 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:01:45,588 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 11:01:45,588 INFO L272 AbstractInterpreter]: Visited 13 different actions 25 times. Merged at 5 different actions 10 times. Never widened. Performed 115 root evaluator evaluations with a maximum evaluation depth of 3. Performed 115 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 17 variables. [2018-11-18 11:01:45,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:45,600 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 11:01:45,600 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:01:45,600 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:01:45,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:01:45,610 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 11:01:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:01:45,619 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:01:45,637 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:01:45,638 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:01:45,670 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:01:45,684 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 11:01:45,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5] total 11 [2018-11-18 11:01:45,685 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:01:45,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:01:45,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:01:45,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-11-18 11:01:45,686 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 6 states. [2018-11-18 11:01:45,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:01:45,715 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2018-11-18 11:01:45,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:01:45,716 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-11-18 11:01:45,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:01:45,716 INFO L225 Difference]: With dead ends: 35 [2018-11-18 11:01:45,716 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 11:01:45,716 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-11-18 11:01:45,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 11:01:45,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-18 11:01:45,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 11:01:45,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-11-18 11:01:45,719 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 17 [2018-11-18 11:01:45,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:01:45,719 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-11-18 11:01:45,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:01:45,719 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-18 11:01:45,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 11:01:45,720 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:01:45,720 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:01:45,720 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:01:45,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:45,720 INFO L82 PathProgramCache]: Analyzing trace with hash -650760307, now seen corresponding path program 1 times [2018-11-18 11:01:45,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:01:45,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:45,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:01:45,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:45,721 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:01:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:01:45,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:01:45,772 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:01:45,772 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:01:45,773 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-11-18 11:01:45,773 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [16], [18], [20], [22], [24], [28], [32], [38], [43], [44], [57], [58], [59] [2018-11-18 11:01:45,774 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:01:45,774 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:01:45,845 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 11:01:45,846 INFO L272 AbstractInterpreter]: Visited 18 different actions 62 times. Merged at 10 different actions 40 times. Never widened. Performed 278 root evaluator evaluations with a maximum evaluation depth of 3. Performed 278 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 20 variables. [2018-11-18 11:01:45,847 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:45,848 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 11:01:45,896 INFO L227 lantSequenceWeakener]: Weakened 17 states. On average, predicates are now at 70.68% of their original sizes. [2018-11-18 11:01:45,896 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 11:01:45,917 INFO L415 sIntCurrentIteration]: We unified 18 AI predicates to 18 [2018-11-18 11:01:45,917 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 11:01:45,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 11:01:45,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2018-11-18 11:01:45,918 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:01:45,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:01:45,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:01:45,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:01:45,918 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 5 states. [2018-11-18 11:01:46,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:01:46,000 INFO L93 Difference]: Finished difference Result 45 states and 47 transitions. [2018-11-18 11:01:46,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:01:46,000 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-11-18 11:01:46,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:01:46,001 INFO L225 Difference]: With dead ends: 45 [2018-11-18 11:01:46,001 INFO L226 Difference]: Without dead ends: 43 [2018-11-18 11:01:46,001 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:01:46,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-18 11:01:46,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2018-11-18 11:01:46,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 11:01:46,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2018-11-18 11:01:46,009 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 19 [2018-11-18 11:01:46,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:01:46,010 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2018-11-18 11:01:46,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:01:46,010 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-11-18 11:01:46,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 11:01:46,010 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:01:46,010 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:01:46,011 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:01:46,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:01:46,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1684572655, now seen corresponding path program 1 times [2018-11-18 11:01:46,011 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:01:46,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:46,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:01:46,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:01:46,012 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:01:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:01:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:01:46,045 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 11:01:46,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:01:46 BoogieIcfgContainer [2018-11-18 11:01:46,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:01:46,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:01:46,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:01:46,060 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:01:46,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:01:44" (3/4) ... [2018-11-18 11:01:46,062 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 11:01:46,091 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4dcbafdf-59fb-4ecd-a1c1-61af37264f82/bin-2019/utaipan/witness.graphml [2018-11-18 11:01:46,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:01:46,091 INFO L168 Benchmark]: Toolchain (without parser) took 1819.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 959.1 MB in the beginning and 961.1 MB in the end (delta: -2.0 MB). Peak memory consumption was 155.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:01:46,093 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:01:46,093 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.28 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:01:46,093 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.46 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:01:46,094 INFO L168 Benchmark]: Boogie Preprocessor took 52.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -209.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:01:46,094 INFO L168 Benchmark]: RCFGBuilder took 159.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2018-11-18 11:01:46,095 INFO L168 Benchmark]: TraceAbstraction took 1375.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.4 MB in the end (delta: 173.3 MB). Peak memory consumption was 173.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:01:46,095 INFO L168 Benchmark]: Witness Printer took 31.20 ms. Allocated memory is still 1.2 GB. Free memory was 964.4 MB in the beginning and 961.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:01:46,098 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 178.28 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 19.46 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -209.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 159.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1375.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.4 MB in the end (delta: 173.3 MB). Peak memory consumption was 173.3 MB. Max. memory is 11.5 GB. * Witness Printer took 31.20 ms. Allocated memory is still 1.2 GB. Free memory was 964.4 MB in the beginning and 961.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int a_length = __VERIFIER_nondet_int(); [L13] COND FALSE !(a_length < 1) [L16] FCALL int a[a_length]; [L17] int j = 0; VAL [a={2147483649:0}, a_length=1, j=0] [L17] COND TRUE j < a_length [L18] FCALL a[j] = __VERIFIER_nondet_int() [L17] j++ VAL [a={2147483649:0}, a_length=1, j=1] [L17] COND FALSE !(j < a_length) VAL [a={2147483649:0}, a_length=1, j=1] [L20] int offset = 1; [L21] int i = 0; VAL [a={2147483649:0}, a_length=1, i=0, j=1, offset=1] [L22] COND TRUE i < a_length [L23] EXPR, FCALL a[i] VAL [a={2147483649:0}, a[i]=2147483647, a_length=1, i=0, j=1, offset=1] [L23] COND FALSE !(a[i] < 0) [L26] EXPR i + offset [L26] EXPR, FCALL a[i] VAL [a={2147483649:0}, a[i]=2147483647, a_length=1, i=0, j=1, offset=1] [L26] i + offset + a[i] VAL [a={2147483649:0}, a[i]=2147483647, a_length=1, i=0, j=1, offset=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 31 locations, 6 error locations. UNSAFE Result, 1.3s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 115 SDtfs, 88 SDslu, 226 SDs, 0 SdLazy, 76 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 104 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 3 AbstIntIterations, 1 AbstIntStrong, 0.9065255731922398 AbsIntWeakeningRatio, 0.6111111111111112 AbsIntAvgWeakeningVarsNumRemoved, 3.5 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 30 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 5082 SizeOfPredicates, 4 NumberOfNonLiveVariables, 121 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 10/29 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...