./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2_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_db5fd422-c116-4963-ba49-e0ac6e866655/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_db5fd422-c116-4963-ba49-e0ac6e866655/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_db5fd422-c116-4963-ba49-e0ac6e866655/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_db5fd422-c116-4963-ba49-e0ac6e866655/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_db5fd422-c116-4963-ba49-e0ac6e866655/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_db5fd422-c116-4963-ba49-e0ac6e866655/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 ab3d6100be77b3a64f0c1d69ccbef6855fa38fbc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:45:10,948 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:45:10,950 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:45:10,961 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:45:10,962 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:45:10,963 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:45:10,964 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:45:10,966 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:45:10,967 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:45:10,968 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:45:10,969 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:45:10,969 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:45:10,970 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:45:10,972 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:45:10,973 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:45:10,974 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:45:10,974 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:45:10,977 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:45:10,978 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:45:10,980 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:45:10,981 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:45:10,982 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:45:10,985 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:45:10,985 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:45:10,985 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:45:10,986 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:45:10,988 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:45:10,989 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:45:10,989 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:45:10,990 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:45:10,991 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:45:10,992 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:45:10,992 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:45:10,992 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:45:10,993 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:45:10,994 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:45:10,994 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_db5fd422-c116-4963-ba49-e0ac6e866655/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-10-27 05:45:11,012 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:45:11,013 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:45:11,014 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:45:11,014 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 05:45:11,015 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 05:45:11,015 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 05:45:11,015 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 05:45:11,016 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 05:45:11,016 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 05:45:11,016 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 05:45:11,016 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 05:45:11,018 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:45:11,019 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:45:11,019 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:45:11,020 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:45:11,020 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:45:11,020 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:45:11,020 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:45:11,020 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:45:11,020 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:45:11,021 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:45:11,021 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:45:11,021 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:45:11,021 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:45:11,021 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:45:11,021 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:45:11,022 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:45:11,022 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:45:11,022 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:45:11,022 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 05:45:11,022 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:45:11,022 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:45:11,023 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 05:45:11,023 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_db5fd422-c116-4963-ba49-e0ac6e866655/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 -> ab3d6100be77b3a64f0c1d69ccbef6855fa38fbc [2018-10-27 05:45:11,066 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:45:11,076 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:45:11,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:45:11,081 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:45:11,081 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:45:11,082 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_db5fd422-c116-4963-ba49-e0ac6e866655/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2_true-termination_true-no-overflow.c [2018-10-27 05:45:11,148 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_db5fd422-c116-4963-ba49-e0ac6e866655/bin-2019/utaipan/data/d75e10075/633275d588764dbf97f70758383acc83/FLAG935abe407 [2018-10-27 05:45:11,543 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:45:11,544 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_db5fd422-c116-4963-ba49-e0ac6e866655/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2_true-termination_true-no-overflow.c [2018-10-27 05:45:11,551 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_db5fd422-c116-4963-ba49-e0ac6e866655/bin-2019/utaipan/data/d75e10075/633275d588764dbf97f70758383acc83/FLAG935abe407 [2018-10-27 05:45:11,564 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_db5fd422-c116-4963-ba49-e0ac6e866655/bin-2019/utaipan/data/d75e10075/633275d588764dbf97f70758383acc83 [2018-10-27 05:45:11,566 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:45:11,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:45:11,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:45:11,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:45:11,573 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:45:11,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:45:11" (1/1) ... [2018-10-27 05:45:11,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f9a755a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:11, skipping insertion in model container [2018-10-27 05:45:11,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:45:11" (1/1) ... [2018-10-27 05:45:11,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:45:11,601 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:45:11,744 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:45:11,747 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:45:11,760 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:45:11,771 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:45:11,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:11 WrapperNode [2018-10-27 05:45:11,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:45:11,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:45:11,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:45:11,773 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:45:11,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:11" (1/1) ... [2018-10-27 05:45:11,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:11" (1/1) ... [2018-10-27 05:45:11,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:45:11,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:45:11,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:45:11,794 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:45:11,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:11" (1/1) ... [2018-10-27 05:45:11,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:11" (1/1) ... [2018-10-27 05:45:11,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:11" (1/1) ... [2018-10-27 05:45:11,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:11" (1/1) ... [2018-10-27 05:45:11,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:11" (1/1) ... [2018-10-27 05:45:11,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:11" (1/1) ... [2018-10-27 05:45:11,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:11" (1/1) ... [2018-10-27 05:45:11,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:45:11,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:45:11,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:45:11,814 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:45:11,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_db5fd422-c116-4963-ba49-e0ac6e866655/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 [2018-10-27 05:45:11,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:45:11,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:45:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:45:11,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:45:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:45:11,940 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:45:12,297 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:45:12,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:45:12 BoogieIcfgContainer [2018-10-27 05:45:12,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:45:12,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:45:12,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:45:12,315 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:45:12,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:45:11" (1/3) ... [2018-10-27 05:45:12,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9f8afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:45:12, skipping insertion in model container [2018-10-27 05:45:12,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:11" (2/3) ... [2018-10-27 05:45:12,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9f8afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:45:12, skipping insertion in model container [2018-10-27 05:45:12,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:45:12" (3/3) ... [2018-10-27 05:45:12,320 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-easy2_true-termination_true-no-overflow.c [2018-10-27 05:45:12,336 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:45:12,350 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-10-27 05:45:12,381 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-10-27 05:45:12,439 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:45:12,440 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:45:12,440 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:45:12,440 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:45:12,440 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:45:12,440 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:45:12,440 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:45:12,440 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:45:12,459 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-10-27 05:45:12,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-27 05:45:12,466 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:45:12,467 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:45:12,469 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:45:12,476 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:45:12,476 INFO L82 PathProgramCache]: Analyzing trace with hash -895809593, now seen corresponding path program 1 times [2018-10-27 05:45:12,481 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:45:12,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:12,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:45:12,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:12,531 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:45:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:45:12,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:45:12,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:45:12,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:45:12,674 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:45:12,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:45:12,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:45:12,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:45:12,688 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-10-27 05:45:12,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:45:12,743 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2018-10-27 05:45:12,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:45:12,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-10-27 05:45:12,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:45:12,752 INFO L225 Difference]: With dead ends: 37 [2018-10-27 05:45:12,753 INFO L226 Difference]: Without dead ends: 23 [2018-10-27 05:45:12,756 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 [2018-10-27 05:45:12,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-27 05:45:12,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-10-27 05:45:12,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-27 05:45:12,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-10-27 05:45:12,792 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 8 [2018-10-27 05:45:12,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:45:12,792 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-10-27 05:45:12,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:45:12,793 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-10-27 05:45:12,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-27 05:45:12,793 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:45:12,794 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:45:12,794 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:45:12,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:45:12,794 INFO L82 PathProgramCache]: Analyzing trace with hash -2000293559, now seen corresponding path program 1 times [2018-10-27 05:45:12,795 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:45:12,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:12,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:45:12,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:12,796 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:45:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:45:12,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:45:12,848 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:45:12,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:45:12,848 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:45:12,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:45:12,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:45:12,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:45:12,851 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 3 states. [2018-10-27 05:45:12,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:45:12,891 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-10-27 05:45:12,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:45:12,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-10-27 05:45:12,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:45:12,896 INFO L225 Difference]: With dead ends: 22 [2018-10-27 05:45:12,896 INFO L226 Difference]: Without dead ends: 21 [2018-10-27 05:45:12,897 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 [2018-10-27 05:45:12,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-10-27 05:45:12,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-10-27 05:45:12,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-10-27 05:45:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-10-27 05:45:12,901 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 9 [2018-10-27 05:45:12,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:45:12,901 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-10-27 05:45:12,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:45:12,901 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-10-27 05:45:12,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:45:12,901 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:45:12,902 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:45:12,902 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:45:12,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:45:12,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1879558135, now seen corresponding path program 1 times [2018-10-27 05:45:12,904 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:45:12,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:12,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:45:12,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:12,906 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:45:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:45:12,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:45:12,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:45:12,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:45:12,935 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:45:12,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:45:12,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:45:12,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:45:12,936 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 3 states. [2018-10-27 05:45:12,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:45:12,964 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-10-27 05:45:12,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:45:12,967 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-10-27 05:45:12,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:45:12,967 INFO L225 Difference]: With dead ends: 21 [2018-10-27 05:45:12,967 INFO L226 Difference]: Without dead ends: 20 [2018-10-27 05:45:12,968 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 [2018-10-27 05:45:12,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-10-27 05:45:12,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-10-27 05:45:12,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-10-27 05:45:12,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-10-27 05:45:12,970 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 10 [2018-10-27 05:45:12,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:45:12,971 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-10-27 05:45:12,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:45:12,971 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-10-27 05:45:12,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:45:12,972 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:45:12,972 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:45:12,972 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:45:12,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:45:12,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1863240011, now seen corresponding path program 1 times [2018-10-27 05:45:12,973 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:45:12,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:12,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:45:12,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:12,974 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:45:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:45:13,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:45:13,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:45:13,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:45:13,012 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:45:13,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:45:13,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:45:13,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:45:13,013 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 3 states. [2018-10-27 05:45:13,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:45:13,054 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-10-27 05:45:13,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:45:13,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-27 05:45:13,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:45:13,055 INFO L225 Difference]: With dead ends: 24 [2018-10-27 05:45:13,055 INFO L226 Difference]: Without dead ends: 23 [2018-10-27 05:45:13,055 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 [2018-10-27 05:45:13,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-27 05:45:13,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-10-27 05:45:13,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-27 05:45:13,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-10-27 05:45:13,058 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 11 [2018-10-27 05:45:13,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:45:13,058 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-10-27 05:45:13,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:45:13,060 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-10-27 05:45:13,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-27 05:45:13,061 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:45:13,061 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:45:13,061 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:45:13,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:45:13,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1925865547, now seen corresponding path program 1 times [2018-10-27 05:45:13,062 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:45:13,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:13,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:45:13,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:13,063 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:45:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:45:13,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:45:13,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:45:13,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:45:13,100 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:45:13,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:45:13,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:45:13,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:45:13,101 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 3 states. [2018-10-27 05:45:13,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:45:13,143 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-10-27 05:45:13,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:45:13,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-10-27 05:45:13,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:45:13,145 INFO L225 Difference]: With dead ends: 23 [2018-10-27 05:45:13,145 INFO L226 Difference]: Without dead ends: 22 [2018-10-27 05:45:13,146 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 [2018-10-27 05:45:13,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-10-27 05:45:13,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-10-27 05:45:13,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-27 05:45:13,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-10-27 05:45:13,151 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 12 [2018-10-27 05:45:13,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:45:13,151 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-10-27 05:45:13,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:45:13,151 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-10-27 05:45:13,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-27 05:45:13,152 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:45:13,152 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:45:13,152 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:45:13,152 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:45:13,153 INFO L82 PathProgramCache]: Analyzing trace with hash -427710131, now seen corresponding path program 1 times [2018-10-27 05:45:13,153 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:45:13,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:13,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:45:13,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:13,154 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:45:13,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:45:13,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:45:13,192 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:45:13,192 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:45:13,192 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:45:13,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:45:13,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:45:13,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:45:13,193 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 3 states. [2018-10-27 05:45:13,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:45:13,217 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-10-27 05:45:13,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:45:13,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-27 05:45:13,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:45:13,220 INFO L225 Difference]: With dead ends: 22 [2018-10-27 05:45:13,220 INFO L226 Difference]: Without dead ends: 21 [2018-10-27 05:45:13,220 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 [2018-10-27 05:45:13,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-10-27 05:45:13,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-10-27 05:45:13,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-10-27 05:45:13,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-10-27 05:45:13,225 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 13 [2018-10-27 05:45:13,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:45:13,225 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-10-27 05:45:13,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:45:13,226 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-10-27 05:45:13,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-27 05:45:13,226 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:45:13,226 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:45:13,229 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:45:13,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:45:13,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1255492539, now seen corresponding path program 1 times [2018-10-27 05:45:13,229 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:45:13,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:13,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:45:13,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:13,231 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:45:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:45:13,268 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:45:13,268 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:45:13,268 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:45:13,269 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-10-27 05:45:13,271 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [14], [15], [16], [18], [20], [22], [24], [26], [32], [33], [34] [2018-10-27 05:45:13,320 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 05:45:13,320 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:45:13,560 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 05:45:13,562 INFO L272 AbstractInterpreter]: Visited 14 different actions 77 times. Merged at 8 different actions 56 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2018-10-27 05:45:13,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:45:13,570 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 05:45:13,630 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 40% of their original sizes. [2018-10-27 05:45:13,631 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 05:45:13,888 INFO L415 sIntCurrentIteration]: We unified 15 AI predicates to 15 [2018-10-27 05:45:13,888 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 05:45:13,889 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:45:13,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [3] total 9 [2018-10-27 05:45:13,889 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:45:13,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 05:45:13,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 05:45:13,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-10-27 05:45:13,890 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 8 states. [2018-10-27 05:45:14,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:45:14,537 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-10-27 05:45:14,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 05:45:14,537 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-10-27 05:45:14,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:45:14,538 INFO L225 Difference]: With dead ends: 28 [2018-10-27 05:45:14,538 INFO L226 Difference]: Without dead ends: 27 [2018-10-27 05:45:14,538 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-27 05:45:14,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-10-27 05:45:14,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-10-27 05:45:14,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-10-27 05:45:14,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-10-27 05:45:14,543 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 16 [2018-10-27 05:45:14,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:45:14,543 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-10-27 05:45:14,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 05:45:14,543 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-10-27 05:45:14,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-27 05:45:14,544 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:45:14,544 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:45:14,544 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:45:14,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:45:14,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1803063511, now seen corresponding path program 1 times [2018-10-27 05:45:14,545 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:45:14,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:14,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:45:14,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:14,546 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:45:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:45:14,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:45:14,652 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:45:14,652 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:45:14,653 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-10-27 05:45:14,653 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [14], [16], [18], [20], [21], [22], [24], [26], [32], [33], [34] [2018-10-27 05:45:14,654 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 05:45:14,654 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:45:14,717 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 05:45:14,717 INFO L272 AbstractInterpreter]: Visited 14 different actions 77 times. Merged at 8 different actions 56 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2018-10-27 05:45:14,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:45:14,747 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 05:45:14,776 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 50% of their original sizes. [2018-10-27 05:45:14,776 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 05:45:15,027 INFO L415 sIntCurrentIteration]: We unified 18 AI predicates to 18 [2018-10-27 05:45:15,027 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 05:45:15,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:45:15,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [3] total 9 [2018-10-27 05:45:15,028 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:45:15,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 05:45:15,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 05:45:15,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-10-27 05:45:15,029 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 8 states. [2018-10-27 05:45:15,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:45:15,312 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-10-27 05:45:15,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 05:45:15,312 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-10-27 05:45:15,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:45:15,313 INFO L225 Difference]: With dead ends: 26 [2018-10-27 05:45:15,313 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 05:45:15,313 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-10-27 05:45:15,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 05:45:15,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 05:45:15,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 05:45:15,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 05:45:15,317 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-10-27 05:45:15,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:45:15,317 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 05:45:15,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 05:45:15,318 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 05:45:15,318 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 05:45:15,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 05:45:15,442 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-27 05:45:15,443 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:45:15,443 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:45:15,443 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 05:45:15,443 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 05:45:15,443 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 05:45:15,443 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 19) no Hoare annotation was computed. [2018-10-27 05:45:15,443 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-10-27 05:45:15,443 INFO L425 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2018-10-27 05:45:15,444 INFO L425 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-10-27 05:45:15,444 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 19) no Hoare annotation was computed. [2018-10-27 05:45:15,444 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 17) no Hoare annotation was computed. [2018-10-27 05:45:15,444 INFO L421 ceAbstractionStarter]: At program point L13-3(lines 13 17) the Hoare annotation is: (let ((.cse0 (+ main_~x~0 main_~y~0))) (and (<= 0 (+ main_~y~0 main_~z~0 2147483648)) (<= 0 .cse0) (<= .cse0 0) (<= (+ main_~x~0 main_~z~0) 2147483647) (<= main_~y~0 0))) [2018-10-27 05:45:15,444 INFO L425 ceAbstractionStarter]: For program point L13-4(lines 13 17) no Hoare annotation was computed. [2018-10-27 05:45:15,444 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-10-27 05:45:15,444 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-10-27 05:45:15,445 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 19) the Hoare annotation is: true [2018-10-27 05:45:15,445 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-10-27 05:45:15,445 INFO L425 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-10-27 05:45:15,445 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-10-27 05:45:15,445 INFO L425 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2018-10-27 05:45:15,445 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-10-27 05:45:15,445 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-10-27 05:45:15,445 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-10-27 05:45:15,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:45:15 BoogieIcfgContainer [2018-10-27 05:45:15,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 05:45:15,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:45:15,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:45:15,455 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:45:15,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:45:12" (3/4) ... [2018-10-27 05:45:15,459 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 05:45:15,463 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 05:45:15,464 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 05:45:15,467 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-10-27 05:45:15,467 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 05:45:15,467 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 05:45:15,501 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_db5fd422-c116-4963-ba49-e0ac6e866655/bin-2019/utaipan/witness.graphml [2018-10-27 05:45:15,502 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:45:15,503 INFO L168 Benchmark]: Toolchain (without parser) took 3935.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 954.5 MB in the beginning and 992.6 MB in the end (delta: -38.1 MB). Peak memory consumption was 131.2 MB. Max. memory is 11.5 GB. [2018-10-27 05:45:15,504 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:45:15,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.81 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:45:15,505 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.60 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:45:15,505 INFO L168 Benchmark]: Boogie Preprocessor took 20.20 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:45:15,506 INFO L168 Benchmark]: RCFGBuilder took 483.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 943.7 MB in the beginning and 1.2 GB in the end (delta: -207.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2018-10-27 05:45:15,506 INFO L168 Benchmark]: TraceAbstraction took 3155.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 996.0 MB in the end (delta: 155.4 MB). Peak memory consumption was 155.4 MB. Max. memory is 11.5 GB. [2018-10-27 05:45:15,507 INFO L168 Benchmark]: Witness Printer took 46.86 ms. Allocated memory is still 1.2 GB. Free memory was 996.0 MB in the beginning and 992.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-10-27 05:45:15,510 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 203.81 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.7 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 20.60 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.20 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 483.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 943.7 MB in the beginning and 1.2 GB in the end (delta: -207.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3155.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 996.0 MB in the end (delta: 155.4 MB). Peak memory consumption was 155.4 MB. Max. memory is 11.5 GB. * Witness Printer took 46.86 ms. Allocated memory is still 1.2 GB. Free memory was 996.0 MB in the beginning and 992.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: (((0 <= y + z + 2147483648 && 0 <= x + y) && x + y <= 0) && x + z <= 2147483647) && y <= 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 6 error locations. SAFE Result, 3.0s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 104 SDtfs, 41 SDslu, 102 SDs, 0 SdLazy, 82 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.18181818181818182 AbsIntAvgWeakeningVarsNumRemoved, 3.272727272727273 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 29 HoareAnnotationTreeSize, 5 FomulaSimplifications, 128 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 79 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 2844 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 0/9 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...