./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.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_b3611009-6219-49c3-8eea-c3fa6509338a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b3611009-6219-49c3-8eea-c3fa6509338a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b3611009-6219-49c3-8eea-c3fa6509338a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b3611009-6219-49c3-8eea-c3fa6509338a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b3611009-6219-49c3-8eea-c3fa6509338a/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b3611009-6219-49c3-8eea-c3fa6509338a/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 687269bb6882b72a3d48999f1e5c55a1d5283a94 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 05:40:31,952 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:40:31,953 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:40:31,960 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:40:31,960 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:40:31,961 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:40:31,961 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:40:31,962 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:40:31,963 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:40:31,963 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:40:31,964 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:40:31,964 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:40:31,965 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:40:31,965 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:40:31,966 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:40:31,967 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:40:31,967 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:40:31,968 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:40:31,970 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:40:31,971 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:40:31,971 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:40:31,972 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:40:31,973 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:40:31,973 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:40:31,973 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:40:31,974 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:40:31,974 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:40:31,974 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:40:31,975 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:40:31,976 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:40:31,976 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:40:31,976 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:40:31,976 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:40:31,977 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:40:31,977 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:40:31,978 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:40:31,978 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b3611009-6219-49c3-8eea-c3fa6509338a/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 05:40:31,987 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:40:31,987 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:40:31,988 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:40:31,988 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 05:40:31,988 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 05:40:31,988 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 05:40:31,988 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 05:40:31,988 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 05:40:31,988 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 05:40:31,988 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 05:40:31,989 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 05:40:31,989 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:40:31,989 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 05:40:31,989 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:40:31,989 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:40:31,990 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:40:31,990 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:40:31,990 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:40:31,990 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 05:40:31,990 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:40:31,990 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:40:31,990 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:40:31,991 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:40:31,991 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:40:31,991 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:40:31,991 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:40:31,991 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:40:31,991 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:40:31,991 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:40:31,991 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 05:40:31,991 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:40:31,992 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:40:31,992 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 05:40:31,992 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_b3611009-6219-49c3-8eea-c3fa6509338a/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 -> 687269bb6882b72a3d48999f1e5c55a1d5283a94 [2018-11-10 05:40:32,013 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:40:32,021 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:40:32,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:40:32,025 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:40:32,025 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:40:32,025 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b3611009-6219-49c3-8eea-c3fa6509338a/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 05:40:32,060 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b3611009-6219-49c3-8eea-c3fa6509338a/bin-2019/utaipan/data/e55caa292/f5266e6502d94a6882257cad5e27e31e/FLAG1c00efece [2018-11-10 05:40:32,356 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:40:32,357 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b3611009-6219-49c3-8eea-c3fa6509338a/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 05:40:32,360 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b3611009-6219-49c3-8eea-c3fa6509338a/bin-2019/utaipan/data/e55caa292/f5266e6502d94a6882257cad5e27e31e/FLAG1c00efece [2018-11-10 05:40:32,369 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b3611009-6219-49c3-8eea-c3fa6509338a/bin-2019/utaipan/data/e55caa292/f5266e6502d94a6882257cad5e27e31e [2018-11-10 05:40:32,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:40:32,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:40:32,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:40:32,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:40:32,377 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:40:32,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:40:32" (1/1) ... [2018-11-10 05:40:32,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc2202b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:32, skipping insertion in model container [2018-11-10 05:40:32,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:40:32" (1/1) ... [2018-11-10 05:40:32,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:40:32,402 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:40:32,518 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:40:32,521 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:40:32,530 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:40:32,538 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:40:32,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:32 WrapperNode [2018-11-10 05:40:32,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:40:32,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:40:32,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:40:32,539 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:40:32,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:32" (1/1) ... [2018-11-10 05:40:32,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:32" (1/1) ... [2018-11-10 05:40:32,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:40:32,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:40:32,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:40:32,550 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:40:32,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:32" (1/1) ... [2018-11-10 05:40:32,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:32" (1/1) ... [2018-11-10 05:40:32,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:32" (1/1) ... [2018-11-10 05:40:32,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:32" (1/1) ... [2018-11-10 05:40:32,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:32" (1/1) ... [2018-11-10 05:40:32,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:32" (1/1) ... [2018-11-10 05:40:32,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:32" (1/1) ... [2018-11-10 05:40:32,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:40:32,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:40:32,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:40:32,562 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:40:32,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b3611009-6219-49c3-8eea-c3fa6509338a/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 05:40:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:40:32,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:40:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:40:32,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:40:32,631 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:40:32,631 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:40:32,736 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:40:32,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:40:32 BoogieIcfgContainer [2018-11-10 05:40:32,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:40:32,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:40:32,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:40:32,739 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:40:32,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:40:32" (1/3) ... [2018-11-10 05:40:32,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50466f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:40:32, skipping insertion in model container [2018-11-10 05:40:32,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:40:32" (2/3) ... [2018-11-10 05:40:32,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50466f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:40:32, skipping insertion in model container [2018-11-10 05:40:32,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:40:32" (3/3) ... [2018-11-10 05:40:32,741 INFO L112 eAbstractionObserver]: Analyzing ICFG TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 05:40:32,749 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:40:32,755 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-10 05:40:32,764 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-10 05:40:32,781 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:40:32,781 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:40:32,781 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:40:32,781 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:40:32,782 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:40:32,782 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:40:32,782 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:40:32,782 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:40:32,796 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-10 05:40:32,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 05:40:32,800 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:40:32,801 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:40:32,803 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 05:40:32,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:40:32,807 INFO L82 PathProgramCache]: Analyzing trace with hash 697080306, now seen corresponding path program 1 times [2018-11-10 05:40:32,809 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:40:32,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:40:32,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:40:32,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:40:32,847 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:40:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:40:32,900 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 05:40:32,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:40:32,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:40:32,901 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:40:32,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 05:40:32,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 05:40:32,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:40:32,912 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2018-11-10 05:40:32,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:40:32,988 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2018-11-10 05:40:32,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:40:32,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 05:40:32,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:40:32,996 INFO L225 Difference]: With dead ends: 62 [2018-11-10 05:40:32,996 INFO L226 Difference]: Without dead ends: 47 [2018-11-10 05:40:32,998 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:40:33,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-10 05:40:33,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 37. [2018-11-10 05:40:33,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-10 05:40:33,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-11-10 05:40:33,020 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 10 [2018-11-10 05:40:33,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:40:33,021 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-11-10 05:40:33,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 05:40:33,021 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-11-10 05:40:33,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 05:40:33,021 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:40:33,021 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:40:33,022 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 05:40:33,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:40:33,022 INFO L82 PathProgramCache]: Analyzing trace with hash 697080498, now seen corresponding path program 1 times [2018-11-10 05:40:33,022 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:40:33,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:40:33,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:40:33,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:40:33,024 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:40:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:40:33,043 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 05:40:33,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:40:33,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:40:33,043 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:40:33,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 05:40:33,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 05:40:33,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:40:33,046 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 3 states. [2018-11-10 05:40:33,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:40:33,097 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2018-11-10 05:40:33,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:40:33,098 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 05:40:33,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:40:33,099 INFO L225 Difference]: With dead ends: 57 [2018-11-10 05:40:33,099 INFO L226 Difference]: Without dead ends: 55 [2018-11-10 05:40:33,100 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:40:33,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-10 05:40:33,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 46. [2018-11-10 05:40:33,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-10 05:40:33,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2018-11-10 05:40:33,106 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 10 [2018-11-10 05:40:33,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:40:33,106 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2018-11-10 05:40:33,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 05:40:33,106 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2018-11-10 05:40:33,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 05:40:33,108 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:40:33,108 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:40:33,108 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 05:40:33,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:40:33,108 INFO L82 PathProgramCache]: Analyzing trace with hash 134653060, now seen corresponding path program 1 times [2018-11-10 05:40:33,109 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:40:33,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:40:33,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:40:33,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:40:33,110 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:40:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:40:33,132 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 05:40:33,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:40:33,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:40:33,132 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:40:33,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 05:40:33,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 05:40:33,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:40:33,133 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand 3 states. [2018-11-10 05:40:33,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:40:33,163 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2018-11-10 05:40:33,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:40:33,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-10 05:40:33,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:40:33,165 INFO L225 Difference]: With dead ends: 46 [2018-11-10 05:40:33,165 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 05:40:33,166 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:40:33,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 05:40:33,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-10 05:40:33,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 05:40:33,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2018-11-10 05:40:33,170 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 11 [2018-11-10 05:40:33,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:40:33,170 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2018-11-10 05:40:33,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 05:40:33,171 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2018-11-10 05:40:33,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 05:40:33,171 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:40:33,171 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:40:33,171 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 05:40:33,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:40:33,172 INFO L82 PathProgramCache]: Analyzing trace with hash 134659018, now seen corresponding path program 1 times [2018-11-10 05:40:33,172 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:40:33,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:40:33,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:40:33,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:40:33,173 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:40:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:40:33,199 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 05:40:33,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:40:33,200 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:40:33,200 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:40:33,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 05:40:33,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 05:40:33,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:40:33,200 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand 3 states. [2018-11-10 05:40:33,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:40:33,223 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2018-11-10 05:40:33,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:40:33,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-10 05:40:33,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:40:33,225 INFO L225 Difference]: With dead ends: 44 [2018-11-10 05:40:33,225 INFO L226 Difference]: Without dead ends: 42 [2018-11-10 05:40:33,225 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:40:33,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-10 05:40:33,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-10 05:40:33,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-10 05:40:33,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2018-11-10 05:40:33,229 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 11 [2018-11-10 05:40:33,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:40:33,230 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2018-11-10 05:40:33,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 05:40:33,230 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2018-11-10 05:40:33,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 05:40:33,230 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:40:33,231 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:40:33,231 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 05:40:33,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:40:33,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1674912527, now seen corresponding path program 1 times [2018-11-10 05:40:33,231 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:40:33,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:40:33,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:40:33,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:40:33,233 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:40:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:40:33,263 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:40:33,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:40:33,264 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 05:40:33,264 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:40:33,264 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 05:40:33,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 05:40:33,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 05:40:33,265 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand 4 states. [2018-11-10 05:40:33,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:40:33,294 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2018-11-10 05:40:33,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:40:33,295 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-10 05:40:33,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:40:33,295 INFO L225 Difference]: With dead ends: 42 [2018-11-10 05:40:33,295 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 05:40:33,295 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 05:40:33,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 05:40:33,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 05:40:33,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 05:40:33,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 05:40:33,296 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-11-10 05:40:33,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:40:33,296 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:40:33,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 05:40:33,296 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 05:40:33,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 05:40:33,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 05:40:33,318 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 05:40:33,318 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:40:33,318 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:40:33,318 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 05:40:33,318 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 05:40:33,318 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 05:40:33,318 INFO L425 ceAbstractionStarter]: For program point L33(lines 33 37) no Hoare annotation was computed. [2018-11-10 05:40:33,318 INFO L425 ceAbstractionStarter]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2018-11-10 05:40:33,318 INFO L425 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-11-10 05:40:33,319 INFO L425 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2018-11-10 05:40:33,319 INFO L425 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-11-10 05:40:33,319 INFO L425 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2018-11-10 05:40:33,319 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 39) no Hoare annotation was computed. [2018-11-10 05:40:33,319 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 19 42) no Hoare annotation was computed. [2018-11-10 05:40:33,319 INFO L421 ceAbstractionStarter]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= main_~y~0 2147483647) (<= main_~x~0 2147483648)) [2018-11-10 05:40:33,319 INFO L425 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2018-11-10 05:40:33,319 INFO L425 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2018-11-10 05:40:33,319 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2018-11-10 05:40:33,320 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 19 42) no Hoare annotation was computed. [2018-11-10 05:40:33,320 INFO L425 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2018-11-10 05:40:33,320 INFO L425 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2018-11-10 05:40:33,320 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-10 05:40:33,320 INFO L425 ceAbstractionStarter]: For program point L34-1(line 34) no Hoare annotation was computed. [2018-11-10 05:40:33,320 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2018-11-10 05:40:33,320 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 19 42) the Hoare annotation is: true [2018-11-10 05:40:33,320 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-10 05:40:33,320 INFO L425 ceAbstractionStarter]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2018-11-10 05:40:33,320 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 24 40) no Hoare annotation was computed. [2018-11-10 05:40:33,320 INFO L425 ceAbstractionStarter]: For program point L24-3(lines 24 40) no Hoare annotation was computed. [2018-11-10 05:40:33,321 INFO L425 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2018-11-10 05:40:33,321 INFO L425 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2018-11-10 05:40:33,321 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2018-11-10 05:40:33,321 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2018-11-10 05:40:33,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:40:33 BoogieIcfgContainer [2018-11-10 05:40:33,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:40:33,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:40:33,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:40:33,330 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:40:33,330 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:40:32" (3/4) ... [2018-11-10 05:40:33,335 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 05:40:33,339 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 05:40:33,340 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 05:40:33,342 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-10 05:40:33,343 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 05:40:33,343 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 05:40:33,374 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b3611009-6219-49c3-8eea-c3fa6509338a/bin-2019/utaipan/witness.graphml [2018-11-10 05:40:33,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:40:33,375 INFO L168 Benchmark]: Toolchain (without parser) took 1002.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 960.3 MB in the beginning and 1.0 GB in the end (delta: -88.6 MB). Peak memory consumption was 40.9 MB. Max. memory is 11.5 GB. [2018-11-10 05:40:33,376 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:40:33,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 165.29 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:40:33,377 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.05 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:40:33,377 INFO L168 Benchmark]: Boogie Preprocessor took 10.88 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:40:33,377 INFO L168 Benchmark]: RCFGBuilder took 174.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-10 05:40:33,378 INFO L168 Benchmark]: TraceAbstraction took 592.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 11.5 GB. [2018-11-10 05:40:33,378 INFO L168 Benchmark]: Witness Printer took 44.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:40:33,380 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 165.29 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.05 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.88 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 174.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 592.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 11.5 GB. * Witness Printer took 44.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: y <= 2147483647 && x <= 2147483648 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 33 locations, 8 error locations. SAFE Result, 0.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 91 SDtfs, 85 SDslu, 52 SDs, 0 SdLazy, 89 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 11 HoareAnnotationTreeSize, 5 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...