./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fa9202f3-6ba1-438c-9f10-890a3c855a69/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fa9202f3-6ba1-438c-9f10-890a3c855a69/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fa9202f3-6ba1-438c-9f10-890a3c855a69/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fa9202f3-6ba1-438c-9f10-890a3c855a69/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fa9202f3-6ba1-438c-9f10-890a3c855a69/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fa9202f3-6ba1-438c-9f10-890a3c855a69/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 457415f9b28998cf0ba7f80d69eaf14873f5a98f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 08:02:45,157 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:02:45,158 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:02:45,165 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:02:45,165 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:02:45,165 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:02:45,166 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:02:45,167 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:02:45,168 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:02:45,169 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:02:45,169 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:02:45,170 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:02:45,170 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:02:45,171 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:02:45,172 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:02:45,172 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:02:45,173 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:02:45,174 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:02:45,175 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:02:45,176 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:02:45,177 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:02:45,178 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:02:45,179 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:02:45,179 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:02:45,179 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:02:45,180 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:02:45,180 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:02:45,181 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:02:45,181 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:02:45,182 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:02:45,182 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:02:45,183 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:02:45,183 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:02:45,183 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:02:45,184 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:02:45,184 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:02:45,184 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fa9202f3-6ba1-438c-9f10-890a3c855a69/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 08:02:45,193 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:02:45,194 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:02:45,194 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 08:02:45,194 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 08:02:45,194 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 08:02:45,195 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 08:02:45,195 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 08:02:45,195 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 08:02:45,195 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 08:02:45,195 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 08:02:45,195 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 08:02:45,196 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:02:45,196 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 08:02:45,196 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:02:45,196 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:02:45,196 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 08:02:45,196 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 08:02:45,197 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 08:02:45,197 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 08:02:45,197 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:02:45,197 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 08:02:45,197 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:02:45,197 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:02:45,197 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 08:02:45,197 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 08:02:45,198 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 08:02:45,198 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:02:45,198 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 08:02:45,198 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 08:02:45,198 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 08:02:45,198 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 08:02:45,198 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 08:02:45,198 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 08:02:45,199 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_fa9202f3-6ba1-438c-9f10-890a3c855a69/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 457415f9b28998cf0ba7f80d69eaf14873f5a98f [2018-11-10 08:02:45,219 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:02:45,228 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:02:45,230 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:02:45,231 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:02:45,232 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:02:45,232 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fa9202f3-6ba1-438c-9f10-890a3c855a69/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5_true-termination_true-no-overflow.c [2018-11-10 08:02:45,268 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa9202f3-6ba1-438c-9f10-890a3c855a69/bin-2019/utaipan/data/ad948e6d5/4dc8fd9c7af34c52b10da2959095e3b8/FLAG115ba5609 [2018-11-10 08:02:45,624 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:02:45,625 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fa9202f3-6ba1-438c-9f10-890a3c855a69/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5_true-termination_true-no-overflow.c [2018-11-10 08:02:45,630 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa9202f3-6ba1-438c-9f10-890a3c855a69/bin-2019/utaipan/data/ad948e6d5/4dc8fd9c7af34c52b10da2959095e3b8/FLAG115ba5609 [2018-11-10 08:02:45,639 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fa9202f3-6ba1-438c-9f10-890a3c855a69/bin-2019/utaipan/data/ad948e6d5/4dc8fd9c7af34c52b10da2959095e3b8 [2018-11-10 08:02:45,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:02:45,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 08:02:45,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:02:45,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:02:45,647 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:02:45,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:02:45" (1/1) ... [2018-11-10 08:02:45,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@236dc686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:45, skipping insertion in model container [2018-11-10 08:02:45,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:02:45" (1/1) ... [2018-11-10 08:02:45,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:02:45,668 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:02:45,787 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:02:45,789 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:02:45,802 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:02:45,811 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:02:45,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:45 WrapperNode [2018-11-10 08:02:45,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:02:45,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 08:02:45,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 08:02:45,812 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 08:02:45,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:45" (1/1) ... [2018-11-10 08:02:45,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:45" (1/1) ... [2018-11-10 08:02:45,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 08:02:45,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:02:45,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:02:45,825 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:02:45,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:45" (1/1) ... [2018-11-10 08:02:45,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:45" (1/1) ... [2018-11-10 08:02:45,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:45" (1/1) ... [2018-11-10 08:02:45,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:45" (1/1) ... [2018-11-10 08:02:45,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:45" (1/1) ... [2018-11-10 08:02:45,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:45" (1/1) ... [2018-11-10 08:02:45,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:45" (1/1) ... [2018-11-10 08:02:45,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:02:45,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:02:45,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:02:45,838 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:02:45,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa9202f3-6ba1-438c-9f10-890a3c855a69/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 08:02:45,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 08:02:45,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 08:02:45,919 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-10 08:02:45,919 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-10 08:02:45,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:02:45,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:02:45,919 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 08:02:45,919 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 08:02:46,022 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:02:46,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:02:46 BoogieIcfgContainer [2018-11-10 08:02:46,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:02:46,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 08:02:46,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 08:02:46,026 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 08:02:46,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 08:02:45" (1/3) ... [2018-11-10 08:02:46,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3def0fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:02:46, skipping insertion in model container [2018-11-10 08:02:46,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:45" (2/3) ... [2018-11-10 08:02:46,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3def0fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:02:46, skipping insertion in model container [2018-11-10 08:02:46,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:02:46" (3/3) ... [2018-11-10 08:02:46,029 INFO L112 eAbstractionObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex5_true-termination_true-no-overflow.c [2018-11-10 08:02:46,037 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 08:02:46,043 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-10 08:02:46,056 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-10 08:02:46,080 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 08:02:46,080 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 08:02:46,080 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 08:02:46,080 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:02:46,080 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:02:46,080 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 08:02:46,081 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:02:46,081 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 08:02:46,093 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-10 08:02:46,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 08:02:46,097 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:02:46,097 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:02:46,099 INFO L424 AbstractCegarLoop]: === Iteration 1 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 08:02:46,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:46,102 INFO L82 PathProgramCache]: Analyzing trace with hash 968375894, now seen corresponding path program 1 times [2018-11-10 08:02:46,104 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:02:46,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:46,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:02:46,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:46,139 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:02:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:02:46,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:02:46,212 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:02:46,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 08:02:46,213 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:02:46,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 08:02:46,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 08:02:46,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 08:02:46,227 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 5 states. [2018-11-10 08:02:46,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:02:46,318 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-11-10 08:02:46,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 08:02:46,320 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-10 08:02:46,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:02:46,326 INFO L225 Difference]: With dead ends: 49 [2018-11-10 08:02:46,326 INFO L226 Difference]: Without dead ends: 32 [2018-11-10 08:02:46,329 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 08:02:46,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-10 08:02:46,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2018-11-10 08:02:46,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-10 08:02:46,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2018-11-10 08:02:46,352 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 11 [2018-11-10 08:02:46,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:02:46,353 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2018-11-10 08:02:46,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 08:02:46,353 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2018-11-10 08:02:46,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 08:02:46,353 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:02:46,353 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:02:46,353 INFO L424 AbstractCegarLoop]: === Iteration 2 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 08:02:46,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:46,354 INFO L82 PathProgramCache]: Analyzing trace with hash 968376118, now seen corresponding path program 1 times [2018-11-10 08:02:46,354 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:02:46,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:46,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:02:46,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:46,354 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:02:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:02:46,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:02:46,402 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:02:46,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 08:02:46,402 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:02:46,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 08:02:46,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 08:02:46,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 08:02:46,404 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 5 states. [2018-11-10 08:02:46,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:02:46,451 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2018-11-10 08:02:46,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 08:02:46,452 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-10 08:02:46,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:02:46,452 INFO L225 Difference]: With dead ends: 38 [2018-11-10 08:02:46,452 INFO L226 Difference]: Without dead ends: 37 [2018-11-10 08:02:46,453 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 08:02:46,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-10 08:02:46,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2018-11-10 08:02:46,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-10 08:02:46,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2018-11-10 08:02:46,456 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 11 [2018-11-10 08:02:46,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:02:46,456 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2018-11-10 08:02:46,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 08:02:46,456 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2018-11-10 08:02:46,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 08:02:46,457 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:02:46,457 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:02:46,457 INFO L424 AbstractCegarLoop]: === Iteration 3 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 08:02:46,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:46,457 INFO L82 PathProgramCache]: Analyzing trace with hash -45118316, now seen corresponding path program 1 times [2018-11-10 08:02:46,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:02:46,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:46,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:02:46,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:46,459 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:02:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:02:46,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:02:46,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:02:46,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 08:02:46,496 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:02:46,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 08:02:46,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 08:02:46,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 08:02:46,497 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 5 states. [2018-11-10 08:02:46,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:02:46,530 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2018-11-10 08:02:46,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 08:02:46,531 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-11-10 08:02:46,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:02:46,532 INFO L225 Difference]: With dead ends: 37 [2018-11-10 08:02:46,532 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 08:02:46,532 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 08:02:46,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 08:02:46,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2018-11-10 08:02:46,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-10 08:02:46,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-11-10 08:02:46,537 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 12 [2018-11-10 08:02:46,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:02:46,537 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-11-10 08:02:46,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 08:02:46,537 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-11-10 08:02:46,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 08:02:46,538 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:02:46,538 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:02:46,538 INFO L424 AbstractCegarLoop]: === Iteration 4 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 08:02:46,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:46,538 INFO L82 PathProgramCache]: Analyzing trace with hash -45111365, now seen corresponding path program 1 times [2018-11-10 08:02:46,539 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:02:46,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:46,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:02:46,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:46,540 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:02:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:02:46,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:02:46,573 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:02:46,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 08:02:46,573 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:02:46,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 08:02:46,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 08:02:46,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 08:02:46,574 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 5 states. [2018-11-10 08:02:46,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:02:46,598 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2018-11-10 08:02:46,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 08:02:46,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-11-10 08:02:46,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:02:46,599 INFO L225 Difference]: With dead ends: 36 [2018-11-10 08:02:46,599 INFO L226 Difference]: Without dead ends: 35 [2018-11-10 08:02:46,599 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 08:02:46,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-10 08:02:46,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-11-10 08:02:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 08:02:46,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-11-10 08:02:46,603 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 12 [2018-11-10 08:02:46,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:02:46,603 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-11-10 08:02:46,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 08:02:46,603 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-11-10 08:02:46,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 08:02:46,604 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:02:46,604 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:02:46,604 INFO L424 AbstractCegarLoop]: === Iteration 5 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 08:02:46,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:46,604 INFO L82 PathProgramCache]: Analyzing trace with hash -489425099, now seen corresponding path program 1 times [2018-11-10 08:02:46,604 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:02:46,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:46,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:02:46,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:46,605 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:02:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:02:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:02:46,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:02:46,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 08:02:46,635 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:02:46,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 08:02:46,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 08:02:46,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 08:02:46,636 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 5 states. [2018-11-10 08:02:46,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:02:46,702 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2018-11-10 08:02:46,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 08:02:46,702 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-10 08:02:46,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:02:46,703 INFO L225 Difference]: With dead ends: 47 [2018-11-10 08:02:46,703 INFO L226 Difference]: Without dead ends: 46 [2018-11-10 08:02:46,703 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-10 08:02:46,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-10 08:02:46,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 37. [2018-11-10 08:02:46,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-10 08:02:46,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2018-11-10 08:02:46,707 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 17 [2018-11-10 08:02:46,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:02:46,707 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2018-11-10 08:02:46,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 08:02:46,708 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2018-11-10 08:02:46,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 08:02:46,708 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:02:46,708 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:02:46,709 INFO L424 AbstractCegarLoop]: === Iteration 6 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 08:02:46,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:46,709 INFO L82 PathProgramCache]: Analyzing trace with hash 945154704, now seen corresponding path program 1 times [2018-11-10 08:02:46,709 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:02:46,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:46,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:02:46,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:46,710 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:02:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:02:46,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:02:46,755 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 08:02:46,755 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 08:02:46,756 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-11-10 08:02:46,758 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [8], [9], [15], [17], [19], [26], [29], [39], [41], [42], [43], [45] [2018-11-10 08:02:46,795 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 08:02:46,795 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 08:02:46,904 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 08:02:46,905 INFO L272 AbstractInterpreter]: Visited 15 different actions 36 times. Never merged. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2018-11-10 08:02:46,910 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:46,910 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 08:02:46,959 INFO L227 lantSequenceWeakener]: Weakened 7 states. On average, predicates are now at 50% of their original sizes. [2018-11-10 08:02:46,959 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 08:02:47,058 INFO L415 sIntCurrentIteration]: We unified 16 AI predicates to 16 [2018-11-10 08:02:47,058 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 08:02:47,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 08:02:47,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2018-11-10 08:02:47,059 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:02:47,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 08:02:47,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 08:02:47,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-11-10 08:02:47,060 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand 11 states. [2018-11-10 08:02:47,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:02:47,337 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-11-10 08:02:47,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 08:02:47,337 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 17 [2018-11-10 08:02:47,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:02:47,337 INFO L225 Difference]: With dead ends: 49 [2018-11-10 08:02:47,338 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 08:02:47,338 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2018-11-10 08:02:47,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 08:02:47,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 08:02:47,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 08:02:47,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 08:02:47,339 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-11-10 08:02:47,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:02:47,339 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:02:47,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 08:02:47,340 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 08:02:47,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 08:02:47,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 08:02:47,362 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-10 08:02:47,556 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 35 [2018-11-10 08:02:47,725 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 36 [2018-11-10 08:02:47,727 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 08:02:47,727 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 08:02:47,727 INFO L425 ceAbstractionStarter]: For program point fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-10 08:02:47,727 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-10 08:02:47,728 INFO L425 ceAbstractionStarter]: For program point fFINAL(lines 13 23) no Hoare annotation was computed. [2018-11-10 08:02:47,728 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-10 08:02:47,728 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-10 08:02:47,728 INFO L421 ceAbstractionStarter]: At program point L20-2(line 20) the Hoare annotation is: (let ((.cse2 (* 2 |f_#in~y|))) (let ((.cse1 (* 2 f_~y)) (.cse0 (* 2 |f_#in~x|)) (.cse3 (< .cse2 0))) (and (or (< 4294967294 .cse0) (<= .cse1 4294967292) (< 4294967292 .cse2) .cse3 (< .cse0 2)) (or (let ((.cse4 (* 2 f_~x))) (and (<= .cse4 4294967294) (<= 2 .cse1) (<= 2 .cse4) (<= .cse1 4294967294))) (< 2147483647 |f_#in~y|) (< .cse0 0) .cse3 (< 2147483647 |f_#in~x|))))) [2018-11-10 08:02:47,728 INFO L425 ceAbstractionStarter]: For program point L17(lines 17 21) no Hoare annotation was computed. [2018-11-10 08:02:47,728 INFO L425 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-11-10 08:02:47,728 INFO L425 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-11-10 08:02:47,729 INFO L421 ceAbstractionStarter]: At program point L18-2(line 18) the Hoare annotation is: (let ((.cse3 (* 2 |f_#in~y|))) (let ((.cse2 (< .cse3 0)) (.cse1 (* 2 |f_#in~x|))) (and (or (let ((.cse0 (* 2 f_~y))) (and (<= f_~x 2147483647) (<= 0 (* 2 f_~x)) (<= 2 .cse0) (<= .cse0 4294967294))) (< 2147483647 |f_#in~y|) (< .cse1 0) .cse2 (< 2147483647 |f_#in~x|)) (or (< 4294967294 .cse1) (< 4294967292 .cse3) .cse2 (< .cse1 2))))) [2018-11-10 08:02:47,729 INFO L425 ceAbstractionStarter]: For program point L18-3(line 18) no Hoare annotation was computed. [2018-11-10 08:02:47,729 INFO L425 ceAbstractionStarter]: For program point L14(lines 14 22) no Hoare annotation was computed. [2018-11-10 08:02:47,729 INFO L425 ceAbstractionStarter]: For program point fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-10 08:02:47,729 INFO L425 ceAbstractionStarter]: For program point fEXIT(lines 13 23) no Hoare annotation was computed. [2018-11-10 08:02:47,729 INFO L428 ceAbstractionStarter]: At program point fENTRY(lines 13 23) the Hoare annotation is: true [2018-11-10 08:02:47,729 INFO L425 ceAbstractionStarter]: For program point fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-10 08:02:47,729 INFO L425 ceAbstractionStarter]: For program point fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-10 08:02:47,729 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 08:02:47,729 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 08:02:47,730 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 08:02:47,730 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 08:02:47,730 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 25 32) the Hoare annotation is: true [2018-11-10 08:02:47,730 INFO L421 ceAbstractionStarter]: At program point L29(line 29) the Hoare annotation is: (and (<= main_~y~0 2147483647) (<= (* 2 main_~x~0) 4294967294) (<= 0 (* 2 main_~y~0)) (<= 0 main_~x~0)) [2018-11-10 08:02:47,730 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 25 32) no Hoare annotation was computed. [2018-11-10 08:02:47,730 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-10 08:02:47,730 INFO L425 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2018-11-10 08:02:47,730 INFO L425 ceAbstractionStarter]: For program point L28-2(lines 28 30) no Hoare annotation was computed. [2018-11-10 08:02:47,730 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 25 32) no Hoare annotation was computed. [2018-11-10 08:02:47,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 08:02:47 BoogieIcfgContainer [2018-11-10 08:02:47,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 08:02:47,733 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:02:47,733 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:02:47,733 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:02:47,733 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:02:46" (3/4) ... [2018-11-10 08:02:47,736 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 08:02:47,739 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 08:02:47,739 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2018-11-10 08:02:47,739 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 08:02:47,742 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-10 08:02:47,742 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 08:02:47,743 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 08:02:47,767 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fa9202f3-6ba1-438c-9f10-890a3c855a69/bin-2019/utaipan/witness.graphml [2018-11-10 08:02:47,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:02:47,768 INFO L168 Benchmark]: Toolchain (without parser) took 2125.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.9 MB). Free memory was 960.2 MB in the beginning and 913.3 MB in the end (delta: 46.9 MB). Peak memory consumption was 217.8 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:47,768 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:02:47,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.84 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:47,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.38 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:02:47,769 INFO L168 Benchmark]: Boogie Preprocessor took 12.54 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:02:47,769 INFO L168 Benchmark]: RCFGBuilder took 185.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.9 MB). Free memory was 949.4 MB in the beginning and 1.2 GB in the end (delta: -207.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:47,769 INFO L168 Benchmark]: TraceAbstraction took 1708.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 916.7 MB in the end (delta: 240.5 MB). Peak memory consumption was 240.5 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:47,770 INFO L168 Benchmark]: Witness Printer took 34.33 ms. Allocated memory is still 1.2 GB. Free memory was 916.7 MB in the beginning and 913.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:47,772 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 167.84 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.38 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.54 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 185.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.9 MB). Free memory was 949.4 MB in the beginning and 1.2 GB in the end (delta: -207.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1708.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 916.7 MB in the end (delta: 240.5 MB). Peak memory consumption was 240.5 MB. Max. memory is 11.5 GB. * Witness Printer took 34.33 ms. Allocated memory is still 1.2 GB. Free memory was 916.7 MB in the beginning and 913.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 4 error locations. SAFE Result, 1.6s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 104 SDtfs, 138 SDslu, 252 SDs, 0 SdLazy, 153 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 51 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.875 AbsIntWeakeningRatio, 0.625 AbsIntAvgWeakeningVarsNumRemoved, 10.625 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 28 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 26 PreInvPairs, 26 NumberOfFragments, 161 HoareAnnotationTreeSize, 26 FomulaSimplifications, 212 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 700 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 1986 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 5/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...