./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10_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_93bc1f43-d3fc-4208-8454-8bbd2152ba80/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_93bc1f43-d3fc-4208-8454-8bbd2152ba80/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_93bc1f43-d3fc-4208-8454-8bbd2152ba80/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_93bc1f43-d3fc-4208-8454-8bbd2152ba80/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_93bc1f43-d3fc-4208-8454-8bbd2152ba80/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_93bc1f43-d3fc-4208-8454-8bbd2152ba80/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 b61f9d11a7993733a89da24850eba50014a42dab .......................................................................................................................................................................................................................................................................................................................................................... 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 10:14:29,685 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:14:29,686 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:14:29,693 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:14:29,694 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:14:29,694 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:14:29,695 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:14:29,696 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:14:29,698 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:14:29,698 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:14:29,699 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:14:29,699 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:14:29,701 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:14:29,702 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:14:29,703 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:14:29,703 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:14:29,704 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:14:29,705 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:14:29,706 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:14:29,707 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:14:29,708 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:14:29,708 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:14:29,710 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:14:29,710 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:14:29,710 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:14:29,711 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:14:29,711 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:14:29,712 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:14:29,712 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:14:29,713 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:14:29,713 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:14:29,713 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:14:29,713 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:14:29,714 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:14:29,714 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:14:29,714 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:14:29,715 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_93bc1f43-d3fc-4208-8454-8bbd2152ba80/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-18 10:14:29,724 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:14:29,725 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:14:29,725 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:14:29,725 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:14:29,726 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:14:29,726 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:14:29,726 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:14:29,726 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 10:14:29,726 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:14:29,726 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:14:29,726 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 10:14:29,726 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 10:14:29,727 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:14:29,728 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:14:29,728 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 10:14:29,729 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:14:29,729 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:14:29,729 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:14:29,729 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:14:29,729 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:14:29,729 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 10:14:29,729 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:14:29,729 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:14:29,730 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:14:29,730 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:14:29,730 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:14:29,730 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:14:29,730 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:14:29,730 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:14:29,730 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:14:29,731 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:14:29,731 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:14:29,731 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 10:14:29,731 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:14:29,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:14:29,731 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 10:14:29,731 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_93bc1f43-d3fc-4208-8454-8bbd2152ba80/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 -> b61f9d11a7993733a89da24850eba50014a42dab [2018-11-18 10:14:29,757 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:14:29,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:14:29,769 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:14:29,770 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:14:29,770 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:14:29,771 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_93bc1f43-d3fc-4208-8454-8bbd2152ba80/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10_false-no-overflow.c [2018-11-18 10:14:29,816 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_93bc1f43-d3fc-4208-8454-8bbd2152ba80/bin-2019/utaipan/data/a7027c2d4/4c6eec51dd8a4c328cb7ff2b5d4c1c74/FLAG9b54b672f [2018-11-18 10:14:30,124 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:14:30,124 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_93bc1f43-d3fc-4208-8454-8bbd2152ba80/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10_false-no-overflow.c [2018-11-18 10:14:30,128 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_93bc1f43-d3fc-4208-8454-8bbd2152ba80/bin-2019/utaipan/data/a7027c2d4/4c6eec51dd8a4c328cb7ff2b5d4c1c74/FLAG9b54b672f [2018-11-18 10:14:30,137 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_93bc1f43-d3fc-4208-8454-8bbd2152ba80/bin-2019/utaipan/data/a7027c2d4/4c6eec51dd8a4c328cb7ff2b5d4c1c74 [2018-11-18 10:14:30,140 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:14:30,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:14:30,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:14:30,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:14:30,145 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:14:30,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:14:30" (1/1) ... [2018-11-18 10:14:30,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfef79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:30, skipping insertion in model container [2018-11-18 10:14:30,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:14:30" (1/1) ... [2018-11-18 10:14:30,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:14:30,172 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:14:30,277 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:14:30,279 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:14:30,287 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:14:30,295 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:14:30,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:30 WrapperNode [2018-11-18 10:14:30,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:14:30,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:14:30,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:14:30,296 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:14:30,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:30" (1/1) ... [2018-11-18 10:14:30,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:30" (1/1) ... [2018-11-18 10:14:30,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:14:30,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:14:30,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:14:30,308 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:14:30,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:30" (1/1) ... [2018-11-18 10:14:30,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:30" (1/1) ... [2018-11-18 10:14:30,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:30" (1/1) ... [2018-11-18 10:14:30,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:30" (1/1) ... [2018-11-18 10:14:30,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:30" (1/1) ... [2018-11-18 10:14:30,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:30" (1/1) ... [2018-11-18 10:14:30,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:30" (1/1) ... [2018-11-18 10:14:30,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:14:30,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:14:30,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:14:30,321 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:14:30,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_93bc1f43-d3fc-4208-8454-8bbd2152ba80/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 10:14:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:14:30,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:14:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:14:30,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:14:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:14:30,396 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:14:30,487 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:14:30,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:14:30 BoogieIcfgContainer [2018-11-18 10:14:30,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:14:30,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:14:30,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:14:30,490 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:14:30,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:14:30" (1/3) ... [2018-11-18 10:14:30,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9036c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:14:30, skipping insertion in model container [2018-11-18 10:14:30,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:14:30" (2/3) ... [2018-11-18 10:14:30,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9036c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:14:30, skipping insertion in model container [2018-11-18 10:14:30,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:14:30" (3/3) ... [2018-11-18 10:14:30,492 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.10_false-no-overflow.c [2018-11-18 10:14:30,498 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:14:30,503 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 10:14:30,514 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 10:14:30,541 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:14:30,542 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:14:30,542 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:14:30,542 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:14:30,542 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:14:30,542 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:14:30,542 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:14:30,542 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:14:30,557 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-18 10:14:30,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 10:14:30,562 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:14:30,562 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:14:30,564 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:14:30,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:14:30,568 INFO L82 PathProgramCache]: Analyzing trace with hash 604672971, now seen corresponding path program 1 times [2018-11-18 10:14:30,569 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:14:30,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:14:30,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:14:30,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:14:30,605 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:14:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:14:30,671 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 10:14:30,673 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:14:30,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:14:30,673 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:14:30,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 10:14:30,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 10:14:30,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:14:30,690 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 4 states. [2018-11-18 10:14:30,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:14:30,729 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-11-18 10:14:30,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 10:14:30,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-18 10:14:30,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:14:30,736 INFO L225 Difference]: With dead ends: 25 [2018-11-18 10:14:30,736 INFO L226 Difference]: Without dead ends: 14 [2018-11-18 10:14:30,739 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 10:14:30,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-18 10:14:30,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-18 10:14:30,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 10:14:30,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-18 10:14:30,760 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2018-11-18 10:14:30,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:14:30,761 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-18 10:14:30,761 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 10:14:30,761 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-18 10:14:30,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 10:14:30,761 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:14:30,762 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:14:30,762 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:14:30,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:14:30,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1564992965, now seen corresponding path program 1 times [2018-11-18 10:14:30,763 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:14:30,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:14:30,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:14:30,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:14:30,764 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:14:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:14:30,802 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 10:14:30,802 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:14:30,802 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:14:30,802 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:14:30,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 10:14:30,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 10:14:30,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:14:30,804 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 4 states. [2018-11-18 10:14:30,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:14:30,843 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-11-18 10:14:30,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 10:14:30,843 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-18 10:14:30,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:14:30,844 INFO L225 Difference]: With dead ends: 14 [2018-11-18 10:14:30,844 INFO L226 Difference]: Without dead ends: 13 [2018-11-18 10:14:30,844 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 10:14:30,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-11-18 10:14:30,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-18 10:14:30,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-18 10:14:30,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-11-18 10:14:30,846 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 9 [2018-11-18 10:14:30,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:14:30,847 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-11-18 10:14:30,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 10:14:30,847 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-18 10:14:30,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 10:14:30,847 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:14:30,848 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:14:30,848 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:14:30,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:14:30,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1270141709, now seen corresponding path program 1 times [2018-11-18 10:14:30,848 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:14:30,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:14:30,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:14:30,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:14:30,850 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:14:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:14:30,872 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 10:14:30,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:14:30,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:14:30,873 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:14:30,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:14:30,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:14:30,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:14:30,874 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 3 states. [2018-11-18 10:14:30,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:14:30,882 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-11-18 10:14:30,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:14:30,883 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 10:14:30,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:14:30,883 INFO L225 Difference]: With dead ends: 15 [2018-11-18 10:14:30,883 INFO L226 Difference]: Without dead ends: 14 [2018-11-18 10:14:30,884 INFO L604 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 [2018-11-18 10:14:30,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-18 10:14:30,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2018-11-18 10:14:30,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-18 10:14:30,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-11-18 10:14:30,886 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-11-18 10:14:30,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:14:30,887 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-18 10:14:30,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:14:30,887 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-18 10:14:30,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 10:14:30,887 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:14:30,887 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:14:30,888 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:14:30,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:14:30,888 INFO L82 PathProgramCache]: Analyzing trace with hash 719687367, now seen corresponding path program 1 times [2018-11-18 10:14:30,888 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:14:30,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:14:30,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:14:30,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:14:30,890 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:14:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:14:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:14:30,908 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 10:14:30,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:14:30 BoogieIcfgContainer [2018-11-18 10:14:30,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:14:30,923 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:14:30,923 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:14:30,923 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:14:30,924 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:14:30" (3/4) ... [2018-11-18 10:14:30,925 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 10:14:30,949 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_93bc1f43-d3fc-4208-8454-8bbd2152ba80/bin-2019/utaipan/witness.graphml [2018-11-18 10:14:30,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:14:30,950 INFO L168 Benchmark]: Toolchain (without parser) took 809.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 958.0 MB in the beginning and 1.1 GB in the end (delta: -131.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-18 10:14:30,951 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 10:14:30,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.88 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 947.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:14:30,952 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.08 ms. Allocated memory is still 1.0 GB. Free memory is still 947.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:14:30,952 INFO L168 Benchmark]: Boogie Preprocessor took 12.21 ms. Allocated memory is still 1.0 GB. Free memory was 947.2 MB in the beginning and 944.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:14:30,953 INFO L168 Benchmark]: RCFGBuilder took 166.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -189.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:14:30,953 INFO L168 Benchmark]: TraceAbstraction took 435.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:14:30,954 INFO L168 Benchmark]: Witness Printer took 26.32 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. [2018-11-18 10:14:30,955 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 153.88 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 947.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.08 ms. Allocated memory is still 1.0 GB. Free memory is still 947.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.21 ms. Allocated memory is still 1.0 GB. Free memory was 947.2 MB in the beginning and 944.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 166.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -189.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 435.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. * Witness Printer took 26.32 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: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x > 0 && y < 0 VAL [x=2, y=-2147483648] [L27] EXPR x + y [L27] x = x + y VAL [x=-2147483646, y=-2147483648] [L28] y - 1 VAL [x=-2147483646, y=-2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 4 error locations. UNSAFE Result, 0.3s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 20 SDslu, 29 SDs, 0 SdLazy, 31 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 502 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...