./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_efcba9b7-8844-4988-aae3-0be34aa3537c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_efcba9b7-8844-4988-aae3-0be34aa3537c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_efcba9b7-8844-4988-aae3-0be34aa3537c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_efcba9b7-8844-4988-aae3-0be34aa3537c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_efcba9b7-8844-4988-aae3-0be34aa3537c/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_efcba9b7-8844-4988-aae3-0be34aa3537c/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 84b0699039fdd709a3306cfa354f9fcc70db171e ......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:43:52,358 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:43:52,359 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:43:52,366 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:43:52,367 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:43:52,367 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:43:52,368 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:43:52,369 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:43:52,370 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:43:52,371 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:43:52,371 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:43:52,371 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:43:52,372 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:43:52,373 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:43:52,373 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:43:52,374 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:43:52,374 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:43:52,376 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:43:52,377 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:43:52,378 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:43:52,379 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:43:52,380 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:43:52,381 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:43:52,381 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:43:52,382 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:43:52,382 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:43:52,383 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:43:52,383 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:43:52,384 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:43:52,385 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:43:52,385 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:43:52,385 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:43:52,386 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:43:52,386 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:43:52,386 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:43:52,387 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:43:52,387 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_efcba9b7-8844-4988-aae3-0be34aa3537c/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-09 19:43:52,397 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:43:52,397 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:43:52,398 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:43:52,398 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:43:52,398 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:43:52,398 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:43:52,398 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:43:52,398 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:43:52,399 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:43:52,399 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:43:52,399 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:43:52,399 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:43:52,399 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:43:52,399 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:43:52,399 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 19:43:52,399 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:43:52,400 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:43:52,400 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:43:52,400 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:43:52,400 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:43:52,400 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-09 19:43:52,400 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:43:52,400 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:43:52,401 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:43:52,401 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:43:52,401 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:43:52,401 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:43:52,401 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:43:52,401 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:43:52,401 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:43:52,401 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:43:52,401 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:43:52,401 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:43:52,401 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:43:52,401 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:43:52,402 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_efcba9b7-8844-4988-aae3-0be34aa3537c/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 -> 84b0699039fdd709a3306cfa354f9fcc70db171e [2018-12-09 19:43:52,424 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:43:52,433 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:43:52,435 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:43:52,436 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:43:52,437 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:43:52,437 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_efcba9b7-8844-4988-aae3-0be34aa3537c/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09_false-no-overflow.c [2018-12-09 19:43:52,478 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_efcba9b7-8844-4988-aae3-0be34aa3537c/bin-2019/utaipan/data/8f036f6d8/e8a0b358618c426cbb9ea19fdadf59ff/FLAGdbb16a094 [2018-12-09 19:43:52,909 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:43:52,909 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_efcba9b7-8844-4988-aae3-0be34aa3537c/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09_false-no-overflow.c [2018-12-09 19:43:52,912 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_efcba9b7-8844-4988-aae3-0be34aa3537c/bin-2019/utaipan/data/8f036f6d8/e8a0b358618c426cbb9ea19fdadf59ff/FLAGdbb16a094 [2018-12-09 19:43:52,920 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_efcba9b7-8844-4988-aae3-0be34aa3537c/bin-2019/utaipan/data/8f036f6d8/e8a0b358618c426cbb9ea19fdadf59ff [2018-12-09 19:43:52,922 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:43:52,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:43:52,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:43:52,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:43:52,925 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:43:52,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:43:52" (1/1) ... [2018-12-09 19:43:52,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3033e242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:52, skipping insertion in model container [2018-12-09 19:43:52,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:43:52" (1/1) ... [2018-12-09 19:43:52,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:43:52,939 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:43:53,020 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:43:53,022 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:43:53,031 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:43:53,038 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:43:53,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:53 WrapperNode [2018-12-09 19:43:53,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:43:53,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:43:53,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:43:53,039 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:43:53,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:53" (1/1) ... [2018-12-09 19:43:53,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:53" (1/1) ... [2018-12-09 19:43:53,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:43:53,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:43:53,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:43:53,051 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:43:53,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:53" (1/1) ... [2018-12-09 19:43:53,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:53" (1/1) ... [2018-12-09 19:43:53,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:53" (1/1) ... [2018-12-09 19:43:53,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:53" (1/1) ... [2018-12-09 19:43:53,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:53" (1/1) ... [2018-12-09 19:43:53,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:53" (1/1) ... [2018-12-09 19:43:53,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:53" (1/1) ... [2018-12-09 19:43:53,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:43:53,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:43:53,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:43:53,063 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:43:53,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_efcba9b7-8844-4988-aae3-0be34aa3537c/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:43:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:43:53,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:43:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:43:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:43:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:43:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:43:53,212 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:43:53,212 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 19:43:53,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:53 BoogieIcfgContainer [2018-12-09 19:43:53,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:43:53,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:43:53,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:43:53,215 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:43:53,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:43:52" (1/3) ... [2018-12-09 19:43:53,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d2b52e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:43:53, skipping insertion in model container [2018-12-09 19:43:53,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:53" (2/3) ... [2018-12-09 19:43:53,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d2b52e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:43:53, skipping insertion in model container [2018-12-09 19:43:53,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:53" (3/3) ... [2018-12-09 19:43:53,216 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.09_false-no-overflow.c [2018-12-09 19:43:53,223 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:43:53,227 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-12-09 19:43:53,240 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-12-09 19:43:53,264 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:43:53,264 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:43:53,264 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:43:53,264 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:43:53,264 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:43:53,264 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:43:53,264 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:43:53,264 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:43:53,275 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-12-09 19:43:53,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 19:43:53,278 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:53,278 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:43:53,280 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 19:43:53,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:53,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1519945914, now seen corresponding path program 1 times [2018-12-09 19:43:53,286 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:43:53,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:53,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:53,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:53,319 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:43:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:43:53,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:43:53,367 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:43:53,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:43:53,367 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:43:53,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:43:53,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:43:53,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:43:53,379 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 3 states. [2018-12-09 19:43:53,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:43:53,410 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-12-09 19:43:53,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:43:53,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-09 19:43:53,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:43:53,417 INFO L225 Difference]: With dead ends: 32 [2018-12-09 19:43:53,417 INFO L226 Difference]: Without dead ends: 21 [2018-12-09 19:43:53,419 INFO L631 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 [2018-12-09 19:43:53,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-09 19:43:53,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-12-09 19:43:53,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-09 19:43:53,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-12-09 19:43:53,439 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 7 [2018-12-09 19:43:53,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:43:53,439 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-12-09 19:43:53,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:43:53,440 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-12-09 19:43:53,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 19:43:53,440 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:53,440 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:43:53,440 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 19:43:53,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:53,440 INFO L82 PathProgramCache]: Analyzing trace with hash 126316969, now seen corresponding path program 1 times [2018-12-09 19:43:53,441 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:43:53,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:53,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:53,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:53,442 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:43:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:43:53,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:43:53,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:43:53,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:43:53,455 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:43:53,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:43:53,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:43:53,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:43:53,457 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 3 states. [2018-12-09 19:43:53,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:43:53,481 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-12-09 19:43:53,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:43:53,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-09 19:43:53,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:43:53,482 INFO L225 Difference]: With dead ends: 33 [2018-12-09 19:43:53,482 INFO L226 Difference]: Without dead ends: 32 [2018-12-09 19:43:53,483 INFO L631 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 [2018-12-09 19:43:53,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-09 19:43:53,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 24. [2018-12-09 19:43:53,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-09 19:43:53,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-12-09 19:43:53,485 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 8 [2018-12-09 19:43:53,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:43:53,486 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-12-09 19:43:53,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:43:53,486 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-12-09 19:43:53,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 19:43:53,486 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:53,486 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:43:53,486 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 19:43:53,487 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:53,487 INFO L82 PathProgramCache]: Analyzing trace with hash -379141208, now seen corresponding path program 1 times [2018-12-09 19:43:53,487 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:43:53,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:53,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:53,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:53,488 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:43:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:43:53,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:43:53,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:43:53,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:43:53,519 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:43:53,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:43:53,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:43:53,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:43:53,520 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 4 states. [2018-12-09 19:43:53,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:43:53,563 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-12-09 19:43:53,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 19:43:53,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-12-09 19:43:53,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:43:53,564 INFO L225 Difference]: With dead ends: 34 [2018-12-09 19:43:53,564 INFO L226 Difference]: Without dead ends: 32 [2018-12-09 19:43:53,564 INFO L631 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 [2018-12-09 19:43:53,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-09 19:43:53,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2018-12-09 19:43:53,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-09 19:43:53,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-12-09 19:43:53,566 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 9 [2018-12-09 19:43:53,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:43:53,566 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-12-09 19:43:53,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:43:53,567 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-12-09 19:43:53,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 19:43:53,567 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:53,567 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:43:53,567 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 19:43:53,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:53,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1131524491, now seen corresponding path program 1 times [2018-12-09 19:43:53,567 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:43:53,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:53,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:53,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:53,569 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:43:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:43:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:43:53,587 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:43:53,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:43:53 BoogieIcfgContainer [2018-12-09 19:43:53,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:43:53,600 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:43:53,600 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:43:53,600 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:43:53,600 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:53" (3/4) ... [2018-12-09 19:43:53,602 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 19:43:53,624 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_efcba9b7-8844-4988-aae3-0be34aa3537c/bin-2019/utaipan/witness.graphml [2018-12-09 19:43:53,624 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:43:53,625 INFO L168 Benchmark]: Toolchain (without parser) took 702.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 954.4 MB in the beginning and 1.0 GB in the end (delta: -80.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:43:53,626 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:43:53,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 115.83 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:43:53,626 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.78 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:43:53,626 INFO L168 Benchmark]: Boogie Preprocessor took 11.50 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:43:53,627 INFO L168 Benchmark]: RCFGBuilder took 149.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-12-09 19:43:53,627 INFO L168 Benchmark]: TraceAbstraction took 386.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:43:53,627 INFO L168 Benchmark]: Witness Printer took 24.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:43:53,629 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 115.83 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.78 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.50 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 149.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 386.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. * Witness Printer took 24.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. 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, n; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] n = __VERIFIER_nondet_int() [L27] COND TRUE x > 0 && x < n VAL [n=3, x=2, y=-2147483647] [L28] EXPR -x VAL [n=3, x=2, y=-2147483647] [L28] -x + y VAL [n=3, x=2, y=-2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 27 locations, 8 error locations. UNSAFE Result, 0.3s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 34 SDtfs, 34 SDslu, 32 SDs, 0 SdLazy, 74 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 315 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...