./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/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 0.1.25-f470102 [2019-12-07 16:59:43,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:59:43,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:59:43,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:59:43,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:59:43,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:59:43,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:59:43,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:59:43,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:59:43,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:59:43,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:59:43,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:59:43,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:59:43,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:59:43,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:59:43,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:59:43,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:59:43,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:59:43,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:59:43,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:59:43,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:59:43,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:59:43,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:59:43,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:59:43,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:59:43,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:59:43,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:59:43,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:59:43,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:59:43,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:59:43,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:59:43,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:59:43,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:59:43,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:59:43,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:59:43,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:59:43,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:59:43,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:59:43,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:59:43,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:59:43,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:59:43,997 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-12-07 16:59:44,011 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:59:44,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:59:44,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:59:44,012 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:59:44,012 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:59:44,012 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:59:44,012 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 16:59:44,013 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:59:44,013 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:59:44,013 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 16:59:44,013 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 16:59:44,013 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:59:44,013 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 16:59:44,014 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 16:59:44,014 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 16:59:44,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:59:44,015 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:59:44,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:59:44,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:59:44,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:59:44,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:59:44,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:59:44,016 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 16:59:44,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:59:44,016 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:59:44,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:59:44,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:59:44,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:59:44,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:59:44,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:59:44,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:59:44,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:59:44,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:59:44,018 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 16:59:44,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:59:44,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:59:44,018 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:59:44,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:59:44,019 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_10e1c4b5-9619-4a27-a135-7337cfe931dd/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 [2019-12-07 16:59:44,126 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:59:44,134 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:59:44,136 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:59:44,137 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:59:44,138 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:59:44,138 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2019-12-07 16:59:44,174 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/bin/utaipan/data/d26e0dd36/b68c9cc48f0a4a4db58543bc32e61cf6/FLAG76ddc2f44 [2019-12-07 16:59:44,575 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:59:44,576 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2019-12-07 16:59:44,579 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/bin/utaipan/data/d26e0dd36/b68c9cc48f0a4a4db58543bc32e61cf6/FLAG76ddc2f44 [2019-12-07 16:59:44,587 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/bin/utaipan/data/d26e0dd36/b68c9cc48f0a4a4db58543bc32e61cf6 [2019-12-07 16:59:44,589 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:59:44,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:59:44,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:59:44,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:59:44,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:59:44,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:59:44" (1/1) ... [2019-12-07 16:59:44,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a8ebb28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:44, skipping insertion in model container [2019-12-07 16:59:44,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:59:44" (1/1) ... [2019-12-07 16:59:44,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:59:44,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:59:44,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:59:44,708 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:59:44,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:59:44,760 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:59:44,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:44 WrapperNode [2019-12-07 16:59:44,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:59:44,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:59:44,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:59:44,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:59:44,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:44" (1/1) ... [2019-12-07 16:59:44,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:44" (1/1) ... [2019-12-07 16:59:44,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:59:44,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:59:44,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:59:44,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:59:44,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:44" (1/1) ... [2019-12-07 16:59:44,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:44" (1/1) ... [2019-12-07 16:59:44,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:44" (1/1) ... [2019-12-07 16:59:44,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:44" (1/1) ... [2019-12-07 16:59:44,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:44" (1/1) ... [2019-12-07 16:59:44,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:44" (1/1) ... [2019-12-07 16:59:44,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:44" (1/1) ... [2019-12-07 16:59:44,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:59:44,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:59:44,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:59:44,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:59:44,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/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 [2019-12-07 16:59:44,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:59:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:59:44,948 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:59:44,948 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 16:59:44,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:59:44 BoogieIcfgContainer [2019-12-07 16:59:44,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:59:44,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:59:44,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:59:44,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:59:44,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:59:44" (1/3) ... [2019-12-07 16:59:44,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5704963c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:59:44, skipping insertion in model container [2019-12-07 16:59:44,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:44" (2/3) ... [2019-12-07 16:59:44,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5704963c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:59:44, skipping insertion in model container [2019-12-07 16:59:44,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:59:44" (3/3) ... [2019-12-07 16:59:44,954 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2019-12-07 16:59:44,961 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:59:44,965 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-12-07 16:59:44,972 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-07 16:59:44,987 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:59:44,987 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:59:44,987 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:59:44,987 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:59:44,987 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:59:44,987 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:59:44,987 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:59:44,987 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:59:44,997 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-12-07 16:59:45,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 16:59:45,000 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:59:45,000 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 16:59:45,001 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:59:45,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:59:45,004 INFO L82 PathProgramCache]: Analyzing trace with hash 29684842, now seen corresponding path program 1 times [2019-12-07 16:59:45,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:59:45,010 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370195489] [2019-12-07 16:59:45,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:59:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:45,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:45,103 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370195489] [2019-12-07 16:59:45,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:59:45,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:59:45,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844786697] [2019-12-07 16:59:45,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:59:45,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:59:45,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:59:45,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:59:45,117 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2019-12-07 16:59:45,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:59:45,147 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-12-07 16:59:45,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:59:45,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 16:59:45,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:59:45,154 INFO L225 Difference]: With dead ends: 21 [2019-12-07 16:59:45,154 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 16:59:45,156 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 [2019-12-07 16:59:45,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 16:59:45,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-12-07 16:59:45,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 16:59:45,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-07 16:59:45,177 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 5 [2019-12-07 16:59:45,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:59:45,178 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-07 16:59:45,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:59:45,178 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-07 16:59:45,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 16:59:45,178 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:59:45,178 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 16:59:45,178 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:59:45,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:59:45,179 INFO L82 PathProgramCache]: Analyzing trace with hash 29685034, now seen corresponding path program 1 times [2019-12-07 16:59:45,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:59:45,179 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813109674] [2019-12-07 16:59:45,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:59:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:45,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:45,195 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813109674] [2019-12-07 16:59:45,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:59:45,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:59:45,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394006669] [2019-12-07 16:59:45,197 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:59:45,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:59:45,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:59:45,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:59:45,198 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2019-12-07 16:59:45,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:59:45,213 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2019-12-07 16:59:45,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:59:45,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 16:59:45,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:59:45,214 INFO L225 Difference]: With dead ends: 30 [2019-12-07 16:59:45,214 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 16:59:45,215 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 [2019-12-07 16:59:45,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 16:59:45,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-07 16:59:45,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 16:59:45,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-12-07 16:59:45,218 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 5 [2019-12-07 16:59:45,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:59:45,218 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-12-07 16:59:45,218 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:59:45,218 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-12-07 16:59:45,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 16:59:45,218 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:59:45,218 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 16:59:45,218 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:59:45,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:59:45,219 INFO L82 PathProgramCache]: Analyzing trace with hash 920230152, now seen corresponding path program 1 times [2019-12-07 16:59:45,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:59:45,219 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150374963] [2019-12-07 16:59:45,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:59:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:45,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:45,233 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150374963] [2019-12-07 16:59:45,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:59:45,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:59:45,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133669961] [2019-12-07 16:59:45,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:59:45,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:59:45,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:59:45,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:59:45,234 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2019-12-07 16:59:45,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:59:45,249 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2019-12-07 16:59:45,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:59:45,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 16:59:45,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:59:45,250 INFO L225 Difference]: With dead ends: 17 [2019-12-07 16:59:45,250 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 16:59:45,251 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 [2019-12-07 16:59:45,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 16:59:45,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-07 16:59:45,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 16:59:45,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-12-07 16:59:45,253 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 6 [2019-12-07 16:59:45,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:59:45,253 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-12-07 16:59:45,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:59:45,253 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-12-07 16:59:45,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 16:59:45,254 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:59:45,254 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2019-12-07 16:59:45,254 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:59:45,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:59:45,254 INFO L82 PathProgramCache]: Analyzing trace with hash -199749339, now seen corresponding path program 1 times [2019-12-07 16:59:45,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:59:45,255 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686490595] [2019-12-07 16:59:45,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:59:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:45,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:45,274 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686490595] [2019-12-07 16:59:45,274 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026264404] [2019-12-07 16:59:45,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/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 [2019-12-07 16:59:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:45,294 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 16:59:45,297 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:59:45,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:45,310 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:59:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:45,324 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1342475636] [2019-12-07 16:59:45,339 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2019-12-07 16:59:45,340 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 16:59:45,343 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 16:59:45,347 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 16:59:45,348 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 16:59:45,468 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 16:59:45,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-12-07 16:59:45,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 9 [2019-12-07 16:59:45,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956073819] [2019-12-07 16:59:45,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 16:59:45,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:59:45,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:59:45,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-12-07 16:59:45,566 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 6 states. [2019-12-07 16:59:45,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:59:45,599 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2019-12-07 16:59:45,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 16:59:45,600 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-12-07 16:59:45,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:59:45,600 INFO L225 Difference]: With dead ends: 26 [2019-12-07 16:59:45,600 INFO L226 Difference]: Without dead ends: 23 [2019-12-07 16:59:45,601 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-12-07 16:59:45,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-12-07 16:59:45,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-12-07 16:59:45,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-07 16:59:45,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-12-07 16:59:45,604 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 9 [2019-12-07 16:59:45,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:59:45,604 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-12-07 16:59:45,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 16:59:45,604 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-12-07 16:59:45,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 16:59:45,605 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:59:45,605 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:59:45,806 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:59:45,806 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:59:45,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:59:45,807 INFO L82 PathProgramCache]: Analyzing trace with hash 610055194, now seen corresponding path program 1 times [2019-12-07 16:59:45,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:59:45,808 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465311504] [2019-12-07 16:59:45,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:59:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:45,879 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 16:59:45,880 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465311504] [2019-12-07 16:59:45,881 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358838892] [2019-12-07 16:59:45,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/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 [2019-12-07 16:59:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:45,944 INFO L264 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 16:59:45,946 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:59:45,994 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 16:59:45,994 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:59:46,028 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 16:59:46,028 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1307241080] [2019-12-07 16:59:46,030 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-12-07 16:59:46,030 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 16:59:46,031 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 16:59:46,031 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 16:59:46,031 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 16:59:46,217 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 16:59:46,522 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 16:59:46,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 16:59:46,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2019-12-07 16:59:46,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197015381] [2019-12-07 16:59:46,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 16:59:46,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:59:46,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 16:59:46,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2019-12-07 16:59:46,524 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 8 states. [2019-12-07 16:59:46,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:59:46,657 INFO L93 Difference]: Finished difference Result 63 states and 79 transitions. [2019-12-07 16:59:46,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 16:59:46,657 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-12-07 16:59:46,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:59:46,658 INFO L225 Difference]: With dead ends: 63 [2019-12-07 16:59:46,658 INFO L226 Difference]: Without dead ends: 51 [2019-12-07 16:59:46,659 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2019-12-07 16:59:46,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-12-07 16:59:46,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2019-12-07 16:59:46,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-12-07 16:59:46,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2019-12-07 16:59:46,665 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 13 [2019-12-07 16:59:46,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:59:46,665 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2019-12-07 16:59:46,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 16:59:46,665 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2019-12-07 16:59:46,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 16:59:46,666 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:59:46,666 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2019-12-07 16:59:46,867 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:59:46,867 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:59:46,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:59:46,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1977014293, now seen corresponding path program 1 times [2019-12-07 16:59:46,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:59:46,870 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110406500] [2019-12-07 16:59:46,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:59:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:46,939 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 16:59:46,940 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110406500] [2019-12-07 16:59:46,941 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681348641] [2019-12-07 16:59:46,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/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 [2019-12-07 16:59:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:47,015 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 16:59:47,016 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:59:47,020 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 16:59:47,020 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:59:47,033 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 16:59:47,034 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1375336092] [2019-12-07 16:59:47,035 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-12-07 16:59:47,035 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 16:59:47,035 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 16:59:47,035 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 16:59:47,036 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 16:59:47,168 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 16:59:47,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-12-07 16:59:47,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3, 3, 3] total 11 [2019-12-07 16:59:47,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864111530] [2019-12-07 16:59:47,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 16:59:47,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:59:47,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 16:59:47,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-12-07 16:59:47,357 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand 8 states. [2019-12-07 16:59:47,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:59:47,444 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2019-12-07 16:59:47,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 16:59:47,445 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-12-07 16:59:47,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:59:47,445 INFO L225 Difference]: With dead ends: 54 [2019-12-07 16:59:47,445 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 16:59:47,446 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2019-12-07 16:59:47,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 16:59:47,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 16:59:47,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 16:59:47,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 16:59:47,446 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-12-07 16:59:47,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:59:47,446 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:59:47,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 16:59:47,446 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:59:47,447 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 16:59:47,647 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:59:47,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 16:59:47,753 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-12-07 16:59:47,753 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 16:59:47,753 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2019-12-07 16:59:47,753 INFO L246 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2019-12-07 16:59:47,753 INFO L246 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2019-12-07 16:59:47,754 INFO L246 CegarLoopResult]: For program point L21(lines 21 26) no Hoare annotation was computed. [2019-12-07 16:59:47,754 INFO L242 CegarLoopResult]: 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))) [2019-12-07 16:59:47,754 INFO L246 CegarLoopResult]: For program point L17(lines 17 28) no Hoare annotation was computed. [2019-12-07 16:59:47,754 INFO L249 CegarLoopResult]: At program point L17-1(lines 17 28) the Hoare annotation is: true [2019-12-07 16:59:47,754 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-12-07 16:59:47,754 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2019-12-07 16:59:47,754 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 16:59:47,754 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-12-07 16:59:47,754 INFO L246 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-12-07 16:59:47,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:59:47 BoogieIcfgContainer [2019-12-07 16:59:47,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:59:47,767 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:59:47,767 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:59:47,767 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:59:47,768 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:59:44" (3/4) ... [2019-12-07 16:59:47,770 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 16:59:47,776 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 16:59:47,776 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 16:59:47,776 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 16:59:47,805 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_10e1c4b5-9619-4a27-a135-7337cfe931dd/bin/utaipan/witness.graphml [2019-12-07 16:59:47,806 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:59:47,807 INFO L168 Benchmark]: Toolchain (without parser) took 3216.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 943.6 MB in the beginning and 958.9 MB in the end (delta: -15.3 MB). Peak memory consumption was 99.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:59:47,808 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:59:47,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:59:47,808 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.06 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:59:47,809 INFO L168 Benchmark]: Boogie Preprocessor took 11.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:59:47,809 INFO L168 Benchmark]: RCFGBuilder took 152.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:59:47,809 INFO L168 Benchmark]: TraceAbstraction took 2817.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 960.6 MB in the end (delta: 132.5 MB). Peak memory consumption was 132.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:59:47,810 INFO L168 Benchmark]: Witness Printer took 38.69 ms. Allocated memory is still 1.1 GB. Free memory was 960.6 MB in the beginning and 958.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:59:47,811 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 169.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.06 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 152.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2817.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 960.6 MB in the end (delta: 132.5 MB). Peak memory consumption was 132.5 MB. Max. memory is 11.5 GB. * Witness Printer took 38.69 ms. Allocated memory is still 1.1 GB. Free memory was 960.6 MB in the beginning and 958.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 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: 2.6s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 35 SDtfs, 147 SDslu, 9 SDs, 0 SdLazy, 114 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 88 SyntacticMatches, 6 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.8s 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, 0.2s 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]: 262, 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]: 27, 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]: 17, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 2, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 161, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME[ms]: 14, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 13, DOMAIN_WIDEN_TIME[ms]: 148, DOMAIN_ISSUBSETEQ_APPLICATIONS: 20, DOMAIN_ISSUBSETEQ_TIME[ms]: 21, DOMAIN_ISBOTTOM_APPLICATIONS: 14, DOMAIN_ISBOTTOM_TIME[ms]: 10, LOOP_SUMMARIZER_APPLICATIONS: 7, LOOP_SUMMARIZER_CACHE_MISSES: 7, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 199, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 198, 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]: 2, REGEX_TO_DAG_TIME[ms]: 2, DAG_COMPRESSION_TIME[ms]: 9, 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...