./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/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 500cb8735f650eb0e7c33062ddc23c2166b17f19 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:57:58,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:57:58,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:57:58,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:57:58,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:57:58,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:57:58,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:57:58,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:57:59,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:57:59,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:57:59,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:57:59,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:57:59,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:57:59,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:57:59,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:57:59,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:57:59,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:57:59,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:57:59,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:57:59,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:57:59,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:57:59,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:57:59,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:57:59,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:57:59,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:57:59,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:57:59,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:57:59,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:57:59,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:57:59,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:57:59,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:57:59,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:57:59,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:57:59,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:57:59,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:57:59,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:57:59,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:57:59,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:57:59,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:57:59,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:57:59,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:57:59,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-11-26 02:57:59,066 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:57:59,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:57:59,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:57:59,077 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:57:59,077 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:57:59,077 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:57:59,077 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:57:59,078 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:57:59,078 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:57:59,078 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:57:59,078 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:57:59,078 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:57:59,079 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:57:59,079 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:57:59,079 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:57:59,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:57:59,080 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:57:59,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:57:59,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:57:59,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:57:59,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:57:59,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:57:59,082 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:57:59,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:57:59,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:57:59,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:57:59,083 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:57:59,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:57:59,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:57:59,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:57:59,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:57:59,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:57:59,085 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:57:59,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:57:59,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:57:59,085 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:57:59,086 INFO L138 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/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/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 -> 500cb8735f650eb0e7c33062ddc23c2166b17f19 [2019-11-26 02:57:59,259 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:57:59,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:57:59,271 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:57:59,272 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:57:59,272 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:57:59,273 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2019-11-26 02:57:59,322 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/utaipan/data/1cf0859a2/ed21cf78c1bb4b289719edf4fc6ce2a9/FLAG9d39cd2af [2019-11-26 02:57:59,720 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:57:59,721 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2019-11-26 02:57:59,726 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/utaipan/data/1cf0859a2/ed21cf78c1bb4b289719edf4fc6ce2a9/FLAG9d39cd2af [2019-11-26 02:57:59,743 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/utaipan/data/1cf0859a2/ed21cf78c1bb4b289719edf4fc6ce2a9 [2019-11-26 02:57:59,746 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:57:59,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:57:59,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:57:59,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:57:59,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:57:59,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:57:59" (1/1) ... [2019-11-26 02:57:59,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28508500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:59, skipping insertion in model container [2019-11-26 02:57:59,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:57:59" (1/1) ... [2019-11-26 02:57:59,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:57:59,786 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:57:59,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:57:59,969 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:58:00,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:58:00,056 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:58:00,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:00 WrapperNode [2019-11-26 02:58:00,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:58:00,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:58:00,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:58:00,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:58:00,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:00" (1/1) ... [2019-11-26 02:58:00,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:00" (1/1) ... [2019-11-26 02:58:00,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:58:00,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:58:00,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:58:00,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:58:00,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:00" (1/1) ... [2019-11-26 02:58:00,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:00" (1/1) ... [2019-11-26 02:58:00,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:00" (1/1) ... [2019-11-26 02:58:00,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:00" (1/1) ... [2019-11-26 02:58:00,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:00" (1/1) ... [2019-11-26 02:58:00,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:00" (1/1) ... [2019-11-26 02:58:00,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:00" (1/1) ... [2019-11-26 02:58:00,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:58:00,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:58:00,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:58:00,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:58:00,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/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 [2019-11-26 02:58:00,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:58:00,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:58:00,431 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:58:00,432 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-26 02:58:00,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:58:00 BoogieIcfgContainer [2019-11-26 02:58:00,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:58:00,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:58:00,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:58:00,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:58:00,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:57:59" (1/3) ... [2019-11-26 02:58:00,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79818dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:58:00, skipping insertion in model container [2019-11-26 02:58:00,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:58:00" (2/3) ... [2019-11-26 02:58:00,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79818dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:58:00, skipping insertion in model container [2019-11-26 02:58:00,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:58:00" (3/3) ... [2019-11-26 02:58:00,441 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2019-11-26 02:58:00,450 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:58:00,459 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-26 02:58:00,471 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-26 02:58:00,492 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:58:00,493 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:58:00,493 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:58:00,493 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:58:00,493 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:58:00,494 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:58:00,494 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:58:00,494 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:58:00,507 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-26 02:58:00,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-26 02:58:00,512 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:58:00,513 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-26 02:58:00,513 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:58:00,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:58:00,519 INFO L82 PathProgramCache]: Analyzing trace with hash 29684842, now seen corresponding path program 1 times [2019-11-26 02:58:00,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:58:00,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020852703] [2019-11-26 02:58:00,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:58:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:58:00,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:58:00,662 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020852703] [2019-11-26 02:58:00,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:58:00,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:58:00,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547787333] [2019-11-26 02:58:00,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:58:00,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:58:00,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:58:00,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:58:00,684 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2019-11-26 02:58:00,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:58:00,740 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-11-26 02:58:00,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:58:00,741 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-26 02:58:00,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:58:00,749 INFO L225 Difference]: With dead ends: 21 [2019-11-26 02:58:00,750 INFO L226 Difference]: Without dead ends: 16 [2019-11-26 02:58:00,752 INFO L630 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 [2019-11-26 02:58:00,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-26 02:58:00,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-11-26 02:58:00,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-26 02:58:00,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-11-26 02:58:00,783 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 5 [2019-11-26 02:58:00,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:58:00,784 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-11-26 02:58:00,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:58:00,784 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-11-26 02:58:00,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-26 02:58:00,785 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:58:00,785 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-26 02:58:00,785 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:58:00,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:58:00,785 INFO L82 PathProgramCache]: Analyzing trace with hash 29685034, now seen corresponding path program 1 times [2019-11-26 02:58:00,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:58:00,786 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039848698] [2019-11-26 02:58:00,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:58:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:58:00,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:58:00,807 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039848698] [2019-11-26 02:58:00,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:58:00,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:58:00,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557388851] [2019-11-26 02:58:00,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:58:00,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:58:00,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:58:00,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:58:00,810 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2019-11-26 02:58:00,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:58:00,833 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2019-11-26 02:58:00,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:58:00,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-26 02:58:00,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:58:00,834 INFO L225 Difference]: With dead ends: 30 [2019-11-26 02:58:00,834 INFO L226 Difference]: Without dead ends: 17 [2019-11-26 02:58:00,835 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:58:00,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-26 02:58:00,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-26 02:58:00,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-26 02:58:00,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-11-26 02:58:00,839 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 5 [2019-11-26 02:58:00,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:58:00,840 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-11-26 02:58:00,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:58:00,840 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-11-26 02:58:00,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:58:00,840 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:58:00,841 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-26 02:58:00,841 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:58:00,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:58:00,841 INFO L82 PathProgramCache]: Analyzing trace with hash 920230152, now seen corresponding path program 1 times [2019-11-26 02:58:00,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:58:00,842 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174977830] [2019-11-26 02:58:00,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:58:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:58:00,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:58:00,871 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174977830] [2019-11-26 02:58:00,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:58:00,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:58:00,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780353812] [2019-11-26 02:58:00,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:58:00,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:58:00,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:58:00,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:58:00,872 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2019-11-26 02:58:00,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:58:00,894 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2019-11-26 02:58:00,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:58:00,896 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-26 02:58:00,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:58:00,897 INFO L225 Difference]: With dead ends: 17 [2019-11-26 02:58:00,897 INFO L226 Difference]: Without dead ends: 16 [2019-11-26 02:58:00,897 INFO L630 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 [2019-11-26 02:58:00,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-26 02:58:00,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-26 02:58:00,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-26 02:58:00,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-11-26 02:58:00,901 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 6 [2019-11-26 02:58:00,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:58:00,901 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-26 02:58:00,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:58:00,902 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-11-26 02:58:00,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:58:00,902 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:58:00,902 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2019-11-26 02:58:00,903 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:58:00,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:58:00,903 INFO L82 PathProgramCache]: Analyzing trace with hash -199749339, now seen corresponding path program 1 times [2019-11-26 02:58:00,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:58:00,904 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729817501] [2019-11-26 02:58:00,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:58:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:58:00,962 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:58:00,963 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729817501] [2019-11-26 02:58:00,963 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830254694] [2019-11-26 02:58:00,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:58:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:58:01,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-26 02:58:01,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:58:01,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:58:01,034 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:58:01,059 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:58:01,059 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2103680334] [2019-11-26 02:58:01,079 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2019-11-26 02:58:01,080 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:58:01,085 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:58:01,091 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:58:01,091 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:58:01,343 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:58:01,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:58:01,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 9 [2019-11-26 02:58:01,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596146507] [2019-11-26 02:58:01,588 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:58:01,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:58:01,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:58:01,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-26 02:58:01,589 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 6 states. [2019-11-26 02:58:01,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:58:01,657 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2019-11-26 02:58:01,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:58:01,657 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-11-26 02:58:01,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:58:01,658 INFO L225 Difference]: With dead ends: 26 [2019-11-26 02:58:01,658 INFO L226 Difference]: Without dead ends: 23 [2019-11-26 02:58:01,659 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-26 02:58:01,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-26 02:58:01,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-11-26 02:58:01,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-26 02:58:01,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-11-26 02:58:01,664 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 9 [2019-11-26 02:58:01,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:58:01,665 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-11-26 02:58:01,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:58:01,665 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-11-26 02:58:01,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:58:01,665 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:58:01,666 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:58:01,866 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:58:01,867 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:58:01,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:58:01,867 INFO L82 PathProgramCache]: Analyzing trace with hash 610055194, now seen corresponding path program 1 times [2019-11-26 02:58:01,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:58:01,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845626082] [2019-11-26 02:58:01,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:58:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:58:01,916 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:58:01,916 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845626082] [2019-11-26 02:58:01,916 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469660199] [2019-11-26 02:58:01,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:58:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:58:01,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-26 02:58:01,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:58:01,969 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:58:01,969 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:58:01,991 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:58:01,991 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1844412882] [2019-11-26 02:58:01,992 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-11-26 02:58:01,992 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:58:01,993 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:58:01,993 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:58:01,993 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:58:02,306 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:58:02,499 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2019-11-26 02:58:02,862 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-26 02:58:02,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:58:02,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2019-11-26 02:58:02,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639811113] [2019-11-26 02:58:02,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:58:02,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:58:02,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:58:02,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2019-11-26 02:58:02,864 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 8 states. [2019-11-26 02:58:03,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:58:03,118 INFO L93 Difference]: Finished difference Result 63 states and 79 transitions. [2019-11-26 02:58:03,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-26 02:58:03,119 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-11-26 02:58:03,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:58:03,120 INFO L225 Difference]: With dead ends: 63 [2019-11-26 02:58:03,120 INFO L226 Difference]: Without dead ends: 51 [2019-11-26 02:58:03,121 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2019-11-26 02:58:03,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-26 02:58:03,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2019-11-26 02:58:03,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-26 02:58:03,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2019-11-26 02:58:03,137 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 13 [2019-11-26 02:58:03,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:58:03,138 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2019-11-26 02:58:03,138 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:58:03,138 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2019-11-26 02:58:03,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-26 02:58:03,139 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:58:03,139 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2019-11-26 02:58:03,351 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:58:03,351 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:58:03,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:58:03,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1977014293, now seen corresponding path program 1 times [2019-11-26 02:58:03,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:58:03,352 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278218087] [2019-11-26 02:58:03,352 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:58:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:58:03,398 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:58:03,398 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278218087] [2019-11-26 02:58:03,398 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103604627] [2019-11-26 02:58:03,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:58:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:58:03,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-26 02:58:03,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:58:03,442 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:58:03,444 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:58:03,459 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:58:03,459 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1226213106] [2019-11-26 02:58:03,460 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-11-26 02:58:03,460 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:58:03,461 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:58:03,461 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:58:03,461 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:58:03,733 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:58:04,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:58:04,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3, 3, 3] total 11 [2019-11-26 02:58:04,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417954466] [2019-11-26 02:58:04,099 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:58:04,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:58:04,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:58:04,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:58:04,100 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand 8 states. [2019-11-26 02:58:04,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:58:04,247 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2019-11-26 02:58:04,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:58:04,248 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-11-26 02:58:04,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:58:04,248 INFO L225 Difference]: With dead ends: 54 [2019-11-26 02:58:04,248 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:58:04,249 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2019-11-26 02:58:04,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:58:04,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:58:04,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:58:04,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:58:04,250 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-26 02:58:04,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:58:04,250 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:58:04,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:58:04,250 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:58:04,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:58:04,451 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:58:04,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:58:04,562 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-26 02:58:04,562 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:58:04,563 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2019-11-26 02:58:04,563 INFO L444 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2019-11-26 02:58:04,563 INFO L444 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2019-11-26 02:58:04,563 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 26) no Hoare annotation was computed. [2019-11-26 02:58:04,563 INFO L440 ceAbstractionStarter]: At program point L21-2(lines 20 27) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 2147483647)) (.cse1 (<= ULTIMATE.start_main_~m~0 2147483647)) (.cse2 (<= 1 ULTIMATE.start_main_~m~0)) (.cse3 (<= 0 ULTIMATE.start_main_~i~0))) (or (and .cse0 .cse1 .cse2 (<= 0 ULTIMATE.start_main_~n~0) (<= ULTIMATE.start_main_~i~0 2147483647) (= ULTIMATE.start_main_~j~0 0) .cse3) (and .cse0 .cse1 .cse2 (<= 0 ULTIMATE.start_main_~j~0) (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~n~0) .cse3))) [2019-11-26 02:58:04,563 INFO L444 ceAbstractionStarter]: For program point L17(lines 17 28) no Hoare annotation was computed. [2019-11-26 02:58:04,563 INFO L447 ceAbstractionStarter]: At program point L17-1(lines 17 28) the Hoare annotation is: true [2019-11-26 02:58:04,564 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-26 02:58:04,564 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2019-11-26 02:58:04,564 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:58:04,564 INFO L444 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-26 02:58:04,564 INFO L444 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-11-26 02:58:04,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:58:04 BoogieIcfgContainer [2019-11-26 02:58:04,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:58:04,592 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:58:04,592 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:58:04,592 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:58:04,593 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:58:00" (3/4) ... [2019-11-26 02:58:04,596 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:58:04,606 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-26 02:58:04,607 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:58:04,607 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:58:04,659 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_eb359518-2310-4735-a065-f5ca79ca8fc8/bin/utaipan/witness.graphml [2019-11-26 02:58:04,659 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:58:04,661 INFO L168 Benchmark]: Toolchain (without parser) took 4913.47 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 223.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -171.1 MB). Peak memory consumption was 52.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:58:04,664 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:58:04,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -206.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:58:04,666 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:58:04,666 INFO L168 Benchmark]: Boogie Preprocessor took 17.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:58:04,667 INFO L168 Benchmark]: RCFGBuilder took 329.08 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: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:58:04,667 INFO L168 Benchmark]: TraceAbstraction took 4158.04 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 61.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 67.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:58:04,668 INFO L168 Benchmark]: Witness Printer took 67.54 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:58:04,670 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -206.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 329.08 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: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4158.04 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 61.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 67.8 MB. Max. memory is 11.5 GB. * Witness Printer took 67.54 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((((((n <= 2147483647 && m <= 2147483647) && 1 <= m) && 0 <= n) && i <= 2147483647) && j == 0) && 0 <= i) || (((((n <= 2147483647 && m <= 2147483647) && 1 <= m) && 0 <= j) && i < n) && 0 <= i) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Result: SAFE, OverallTime: 4.0s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 35 SDtfs, 147 SDslu, 9 SDs, 0 SdLazy, 114 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 88 SyntacticMatches, 6 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 13 NumberOfFragments, 43 HoareAnnotationTreeSize, 2 FomulaSimplifications, 252 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 104 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 3609 SizeOfPredicates, 0 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 46/78 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 539, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 14, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 96, TOOLS_POST_TIME[ms]: 54, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 96, TOOLS_QUANTIFIERELIM_TIME[ms]: 36, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 4, FLUID_QUERY_TIME[ms]: 6, FLUID_QUERIES: 161, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME[ms]: 40, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 13, DOMAIN_WIDEN_TIME[ms]: 312, DOMAIN_ISSUBSETEQ_APPLICATIONS: 20, DOMAIN_ISSUBSETEQ_TIME[ms]: 44, DOMAIN_ISBOTTOM_APPLICATIONS: 14, DOMAIN_ISBOTTOM_TIME[ms]: 21, LOOP_SUMMARIZER_APPLICATIONS: 7, LOOP_SUMMARIZER_CACHE_MISSES: 7, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 415, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 414, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 20, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 17, DAG_COMPRESSION_PROCESSED_NODES: 162, DAG_COMPRESSION_RETAINED_NODES: 60, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...