./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cb0c5f89-182d-422d-88f0-c4d6b591dd22/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cb0c5f89-182d-422d-88f0-c4d6b591dd22/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cb0c5f89-182d-422d-88f0-c4d6b591dd22/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cb0c5f89-182d-422d-88f0-c4d6b591dd22/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cb0c5f89-182d-422d-88f0-c4d6b591dd22/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cb0c5f89-182d-422d-88f0-c4d6b591dd22/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 588716e5dd1c3d01882e1bf0a06b3529d9c3d880 .............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 10:27:39,567 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:27:39,568 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:27:39,576 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:27:39,576 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:27:39,577 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:27:39,578 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:27:39,579 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:27:39,580 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:27:39,581 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:27:39,581 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:27:39,582 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:27:39,582 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:27:39,583 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:27:39,584 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:27:39,584 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:27:39,584 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:27:39,585 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:27:39,586 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:27:39,587 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:27:39,588 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:27:39,589 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:27:39,591 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:27:39,591 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:27:39,591 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:27:39,592 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:27:39,592 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:27:39,592 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:27:39,593 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:27:39,594 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:27:39,594 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:27:39,594 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:27:39,595 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:27:39,595 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:27:39,595 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:27:39,596 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:27:39,596 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cb0c5f89-182d-422d-88f0-c4d6b591dd22/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 10:27:39,606 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:27:39,606 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:27:39,607 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 10:27:39,607 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 10:27:39,607 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 10:27:39,607 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 10:27:39,607 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 10:27:39,607 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 10:27:39,608 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 10:27:39,608 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 10:27:39,608 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 10:27:39,608 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:27:39,608 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 10:27:39,609 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 10:27:39,609 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:27:39,609 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 10:27:39,609 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 10:27:39,609 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 10:27:39,609 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 10:27:39,609 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:27:39,609 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 10:27:39,610 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:27:39,610 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 10:27:39,610 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 10:27:39,610 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 10:27:39,610 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:27:39,610 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:27:39,610 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 10:27:39,611 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 10:27:39,611 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 10:27:39,611 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 10:27:39,611 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 10:27:39,611 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 10:27:39,611 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_cb0c5f89-182d-422d-88f0-c4d6b591dd22/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 -> 588716e5dd1c3d01882e1bf0a06b3529d9c3d880 [2018-11-10 10:27:39,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:27:39,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:27:39,647 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:27:39,648 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:27:39,648 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:27:39,649 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cb0c5f89-182d-422d-88f0-c4d6b591dd22/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3_false-no-overflow.c [2018-11-10 10:27:39,698 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cb0c5f89-182d-422d-88f0-c4d6b591dd22/bin-2019/utaipan/data/dea107ed2/15c640b7660e4fee90a6ee16ac090557/FLAG7737044d6 [2018-11-10 10:27:40,041 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:27:40,041 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cb0c5f89-182d-422d-88f0-c4d6b591dd22/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3_false-no-overflow.c [2018-11-10 10:27:40,047 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cb0c5f89-182d-422d-88f0-c4d6b591dd22/bin-2019/utaipan/data/dea107ed2/15c640b7660e4fee90a6ee16ac090557/FLAG7737044d6 [2018-11-10 10:27:40,060 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cb0c5f89-182d-422d-88f0-c4d6b591dd22/bin-2019/utaipan/data/dea107ed2/15c640b7660e4fee90a6ee16ac090557 [2018-11-10 10:27:40,062 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:27:40,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 10:27:40,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:27:40,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:27:40,067 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:27:40,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:27:40" (1/1) ... [2018-11-10 10:27:40,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14d2dc4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:40, skipping insertion in model container [2018-11-10 10:27:40,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:27:40" (1/1) ... [2018-11-10 10:27:40,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:27:40,094 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:27:40,217 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:27:40,220 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:27:40,229 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:27:40,238 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:27:40,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:40 WrapperNode [2018-11-10 10:27:40,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:27:40,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 10:27:40,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 10:27:40,239 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 10:27:40,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:40" (1/1) ... [2018-11-10 10:27:40,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:40" (1/1) ... [2018-11-10 10:27:40,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 10:27:40,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:27:40,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:27:40,251 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:27:40,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:40" (1/1) ... [2018-11-10 10:27:40,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:40" (1/1) ... [2018-11-10 10:27:40,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:40" (1/1) ... [2018-11-10 10:27:40,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:40" (1/1) ... [2018-11-10 10:27:40,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:40" (1/1) ... [2018-11-10 10:27:40,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:40" (1/1) ... [2018-11-10 10:27:40,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:40" (1/1) ... [2018-11-10 10:27:40,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:27:40,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:27:40,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:27:40,264 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:27:40,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cb0c5f89-182d-422d-88f0-c4d6b591dd22/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 [2018-11-10 10:27:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 10:27:40,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 10:27:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:27:40,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:27:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 10:27:40,342 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 10:27:40,449 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:27:40,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:27:40 BoogieIcfgContainer [2018-11-10 10:27:40,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:27:40,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 10:27:40,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 10:27:40,452 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 10:27:40,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:27:40" (1/3) ... [2018-11-10 10:27:40,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a8657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:27:40, skipping insertion in model container [2018-11-10 10:27:40,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:40" (2/3) ... [2018-11-10 10:27:40,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a8657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:27:40, skipping insertion in model container [2018-11-10 10:27:40,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:27:40" (3/3) ... [2018-11-10 10:27:40,454 INFO L112 eAbstractionObserver]: Analyzing ICFG PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3_false-no-overflow.c [2018-11-10 10:27:40,461 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 10:27:40,465 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-10 10:27:40,474 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-10 10:27:40,494 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 10:27:40,494 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 10:27:40,494 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 10:27:40,494 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 10:27:40,494 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 10:27:40,495 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 10:27:40,495 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 10:27:40,495 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 10:27:40,505 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-10 10:27:40,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 10:27:40,509 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:27:40,509 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:27:40,511 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 10:27:40,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:27:40,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1241711279, now seen corresponding path program 1 times [2018-11-10 10:27:40,516 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 10:27:40,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:27:40,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:27:40,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:27:40,550 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 10:27:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:27:40,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:27:40,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:27:40,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 10:27:40,628 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 10:27:40,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 10:27:40,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 10:27:40,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 10:27:40,641 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 4 states. [2018-11-10 10:27:40,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:27:40,712 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2018-11-10 10:27:40,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 10:27:40,713 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-10 10:27:40,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:27:40,719 INFO L225 Difference]: With dead ends: 56 [2018-11-10 10:27:40,720 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 10:27:40,722 INFO L605 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 [2018-11-10 10:27:40,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 10:27:40,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 25. [2018-11-10 10:27:40,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-10 10:27:40,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-11-10 10:27:40,745 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 9 [2018-11-10 10:27:40,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:27:40,746 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-11-10 10:27:40,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 10:27:40,746 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-11-10 10:27:40,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 10:27:40,746 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:27:40,746 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:27:40,747 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 10:27:40,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:27:40,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1241711471, now seen corresponding path program 1 times [2018-11-10 10:27:40,747 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 10:27:40,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:27:40,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:27:40,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:27:40,749 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 10:27:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:27:40,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:27:40,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:27:40,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 10:27:40,783 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 10:27:40,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 10:27:40,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 10:27:40,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 10:27:40,785 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 4 states. [2018-11-10 10:27:40,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:27:40,834 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2018-11-10 10:27:40,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 10:27:40,835 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-10 10:27:40,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:27:40,836 INFO L225 Difference]: With dead ends: 43 [2018-11-10 10:27:40,836 INFO L226 Difference]: Without dead ends: 42 [2018-11-10 10:27:40,837 INFO L605 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 [2018-11-10 10:27:40,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-10 10:27:40,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 29. [2018-11-10 10:27:40,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-10 10:27:40,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-11-10 10:27:40,842 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 9 [2018-11-10 10:27:40,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:27:40,842 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2018-11-10 10:27:40,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 10:27:40,842 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-11-10 10:27:40,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 10:27:40,842 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:27:40,843 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:27:40,843 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 10:27:40,843 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:27:40,843 INFO L82 PathProgramCache]: Analyzing trace with hash -161655964, now seen corresponding path program 1 times [2018-11-10 10:27:40,843 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 10:27:40,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:27:40,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:27:40,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:27:40,845 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 10:27:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:27:40,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:27:40,880 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:27:40,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 10:27:40,880 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 10:27:40,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 10:27:40,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 10:27:40,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 10:27:40,881 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2018-11-10 10:27:40,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:27:40,897 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2018-11-10 10:27:40,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 10:27:40,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 10:27:40,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:27:40,898 INFO L225 Difference]: With dead ends: 29 [2018-11-10 10:27:40,898 INFO L226 Difference]: Without dead ends: 27 [2018-11-10 10:27:40,898 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 10:27:40,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-10 10:27:40,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-10 10:27:40,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-10 10:27:40,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-11-10 10:27:40,902 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 10 [2018-11-10 10:27:40,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:27:40,903 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-11-10 10:27:40,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 10:27:40,903 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-11-10 10:27:40,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 10:27:40,903 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:27:40,903 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:27:40,903 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 10:27:40,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:27:40,904 INFO L82 PathProgramCache]: Analyzing trace with hash -161650006, now seen corresponding path program 1 times [2018-11-10 10:27:40,904 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 10:27:40,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:27:40,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:27:40,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:27:40,905 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 10:27:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:27:40,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:27:40,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:27:40,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 10:27:40,928 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 10:27:40,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 10:27:40,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 10:27:40,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 10:27:40,929 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 3 states. [2018-11-10 10:27:40,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:27:40,943 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2018-11-10 10:27:40,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 10:27:40,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 10:27:40,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:27:40,944 INFO L225 Difference]: With dead ends: 27 [2018-11-10 10:27:40,945 INFO L226 Difference]: Without dead ends: 26 [2018-11-10 10:27:40,945 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 10:27:40,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-10 10:27:40,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-10 10:27:40,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-10 10:27:40,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2018-11-10 10:27:40,949 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 10 [2018-11-10 10:27:40,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:27:40,949 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2018-11-10 10:27:40,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 10:27:40,949 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2018-11-10 10:27:40,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 10:27:40,949 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:27:40,950 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:27:40,950 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 10:27:40,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:27:40,950 INFO L82 PathProgramCache]: Analyzing trace with hash -716182831, now seen corresponding path program 1 times [2018-11-10 10:27:40,950 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 10:27:40,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:27:40,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:27:40,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:27:40,952 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 10:27:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:27:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:27:40,976 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 10:27:40,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:27:40 BoogieIcfgContainer [2018-11-10 10:27:40,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 10:27:40,993 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:27:40,993 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:27:40,993 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:27:40,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:27:40" (3/4) ... [2018-11-10 10:27:40,995 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 10:27:41,023 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cb0c5f89-182d-422d-88f0-c4d6b591dd22/bin-2019/utaipan/witness.graphml [2018-11-10 10:27:41,023 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:27:41,024 INFO L168 Benchmark]: Toolchain (without parser) took 960.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.2 MB). Free memory was 959.8 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. [2018-11-10 10:27:41,025 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:27:41,025 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.67 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:27:41,025 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.11 ms. Allocated memory is still 1.0 GB. Free memory is still 949.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:27:41,026 INFO L168 Benchmark]: Boogie Preprocessor took 12.41 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:27:41,026 INFO L168 Benchmark]: RCFGBuilder took 185.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.2 MB). Free memory was 946.4 MB in the beginning and 1.2 GB in the end (delta: -239.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2018-11-10 10:27:41,026 INFO L168 Benchmark]: TraceAbstraction took 543.12 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: 61.4 MB). Peak memory consumption was 61.4 MB. Max. memory is 11.5 GB. [2018-11-10 10:27:41,027 INFO L168 Benchmark]: Witness Printer took 30.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:27:41,028 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 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.67 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 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 12.11 ms. Allocated memory is still 1.0 GB. Free memory is still 949.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.41 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 185.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.2 MB). Free memory was 946.4 MB in the beginning and 1.2 GB in the end (delta: -239.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 543.12 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: 61.4 MB). Peak memory consumption was 61.4 MB. Max. memory is 11.5 GB. * Witness Printer took 30.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L18] int x, y, oldx, oldy; [L19] x = __VERIFIER_nondet_int() [L20] y = __VERIFIER_nondet_int() [L21] COND TRUE x > 0 && y > 0 [L22] oldx = x [L23] oldy = y [L24] COND FALSE !(__VERIFIER_nondet_int() != 0) [L28] EXPR oldy - 2 [L28] x = oldy - 2 VAL [x=-1, x=2147483647, y=1, y=1] [L29] oldx + 1 VAL [x=-1, x=2147483647, y=1, y=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 6 error locations. UNSAFE Result, 0.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 72 SDtfs, 74 SDslu, 76 SDs, 0 SdLazy, 49 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, 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, 4 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...