./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_30731f44-27bf-40ae-9e6c-e7fae5e36c43/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_30731f44-27bf-40ae-9e6c-e7fae5e36c43/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_30731f44-27bf-40ae-9e6c-e7fae5e36c43/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_30731f44-27bf-40ae-9e6c-e7fae5e36c43/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_30731f44-27bf-40ae-9e6c-e7fae5e36c43/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_30731f44-27bf-40ae-9e6c-e7fae5e36c43/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 0.1.23-635dfa2 [2018-12-09 19:02:56,068 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:02:56,069 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:02:56,075 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:02:56,075 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:02:56,076 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:02:56,077 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:02:56,077 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:02:56,078 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:02:56,079 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:02:56,079 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:02:56,079 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:02:56,080 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:02:56,080 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:02:56,081 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:02:56,081 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:02:56,082 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:02:56,083 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:02:56,084 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:02:56,084 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:02:56,085 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:02:56,086 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:02:56,087 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:02:56,087 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:02:56,087 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:02:56,088 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:02:56,088 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:02:56,089 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:02:56,089 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:02:56,090 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:02:56,090 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:02:56,090 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:02:56,090 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:02:56,090 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:02:56,091 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:02:56,091 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:02:56,091 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_30731f44-27bf-40ae-9e6c-e7fae5e36c43/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-09 19:02:56,099 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:02:56,099 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:02:56,099 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:02:56,100 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:02:56,100 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:02:56,100 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:02:56,100 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:02:56,100 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:02:56,100 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:02:56,100 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:02:56,100 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:02:56,101 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:02:56,101 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:02:56,101 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:02:56,101 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 19:02:56,101 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:02:56,102 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:02:56,102 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:02:56,102 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:02:56,102 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:02:56,102 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-09 19:02:56,102 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:02:56,102 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:02:56,102 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:02:56,103 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:02:56,103 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:02:56,103 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:02:56,103 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:02:56,103 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:02:56,103 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:02:56,103 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:02:56,103 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:02:56,104 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:02:56,104 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:02:56,104 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:02:56,104 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_30731f44-27bf-40ae-9e6c-e7fae5e36c43/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 [2018-12-09 19:02:56,122 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:02:56,131 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:02:56,134 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:02:56,135 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:02:56,135 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:02:56,135 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_30731f44-27bf-40ae-9e6c-e7fae5e36c43/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-09 19:02:56,173 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_30731f44-27bf-40ae-9e6c-e7fae5e36c43/bin-2019/utaipan/data/70d3b3dc3/4b20a9e2178441509dc123a2aff2062d/FLAG427174c30 [2018-12-09 19:02:56,582 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:02:56,583 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_30731f44-27bf-40ae-9e6c-e7fae5e36c43/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-09 19:02:56,586 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_30731f44-27bf-40ae-9e6c-e7fae5e36c43/bin-2019/utaipan/data/70d3b3dc3/4b20a9e2178441509dc123a2aff2062d/FLAG427174c30 [2018-12-09 19:02:56,594 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_30731f44-27bf-40ae-9e6c-e7fae5e36c43/bin-2019/utaipan/data/70d3b3dc3/4b20a9e2178441509dc123a2aff2062d [2018-12-09 19:02:56,596 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:02:56,597 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:02:56,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:02:56,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:02:56,599 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:02:56,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:02:56" (1/1) ... [2018-12-09 19:02:56,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5663953f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:56, skipping insertion in model container [2018-12-09 19:02:56,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:02:56" (1/1) ... [2018-12-09 19:02:56,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:02:56,614 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:02:56,696 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:02:56,698 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:02:56,707 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:02:56,714 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:02:56,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:56 WrapperNode [2018-12-09 19:02:56,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:02:56,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:02:56,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:02:56,716 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:02:56,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:56" (1/1) ... [2018-12-09 19:02:56,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:56" (1/1) ... [2018-12-09 19:02:56,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:02:56,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:02:56,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:02:56,728 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:02:56,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:56" (1/1) ... [2018-12-09 19:02:56,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:56" (1/1) ... [2018-12-09 19:02:56,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:56" (1/1) ... [2018-12-09 19:02:56,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:56" (1/1) ... [2018-12-09 19:02:56,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:56" (1/1) ... [2018-12-09 19:02:56,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:56" (1/1) ... [2018-12-09 19:02:56,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:56" (1/1) ... [2018-12-09 19:02:56,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:02:56,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:02:56,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:02:56,740 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:02:56,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_30731f44-27bf-40ae-9e6c-e7fae5e36c43/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 [2018-12-09 19:02:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:02:56,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:02:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:02:56,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:02:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:02:56,802 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:02:56,893 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:02:56,893 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 19:02:56,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:02:56 BoogieIcfgContainer [2018-12-09 19:02:56,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:02:56,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:02:56,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:02:56,896 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:02:56,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:02:56" (1/3) ... [2018-12-09 19:02:56,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c378e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:02:56, skipping insertion in model container [2018-12-09 19:02:56,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:56" (2/3) ... [2018-12-09 19:02:56,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c378e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:02:56, skipping insertion in model container [2018-12-09 19:02:56,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:02:56" (3/3) ... [2018-12-09 19:02:56,898 INFO L112 eAbstractionObserver]: Analyzing ICFG TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-09 19:02:56,904 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:02:56,909 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-12-09 19:02:56,918 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-12-09 19:02:56,937 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:02:56,937 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:02:56,937 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:02:56,937 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:02:56,937 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:02:56,937 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:02:56,937 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:02:56,937 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:02:56,948 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-12-09 19:02:56,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 19:02:56,951 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:02:56,952 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:02:56,953 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 19:02:56,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:02:56,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1025703619, now seen corresponding path program 1 times [2018-12-09 19:02:56,958 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:02:56,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:56,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:02:56,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:56,990 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:02:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:02:57,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:02:57,044 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:02:57,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:02:57,044 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:02:57,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:02:57,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:02:57,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:02:57,056 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2018-12-09 19:02:57,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:02:57,105 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2018-12-09 19:02:57,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:02:57,106 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-09 19:02:57,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:02:57,112 INFO L225 Difference]: With dead ends: 60 [2018-12-09 19:02:57,112 INFO L226 Difference]: Without dead ends: 45 [2018-12-09 19:02:57,114 INFO L631 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 [2018-12-09 19:02:57,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-09 19:02:57,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2018-12-09 19:02:57,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-09 19:02:57,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2018-12-09 19:02:57,135 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 9 [2018-12-09 19:02:57,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:02:57,136 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2018-12-09 19:02:57,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:02:57,136 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2018-12-09 19:02:57,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 19:02:57,136 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:02:57,136 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:02:57,137 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 19:02:57,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:02:57,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1025703427, now seen corresponding path program 1 times [2018-12-09 19:02:57,137 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:02:57,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:57,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:02:57,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:57,138 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:02:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:02:57,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:02:57,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:02:57,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:02:57,153 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:02:57,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:02:57,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:02:57,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:02:57,155 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand 3 states. [2018-12-09 19:02:57,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:02:57,186 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2018-12-09 19:02:57,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:02:57,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-09 19:02:57,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:02:57,187 INFO L225 Difference]: With dead ends: 54 [2018-12-09 19:02:57,187 INFO L226 Difference]: Without dead ends: 52 [2018-12-09 19:02:57,187 INFO L631 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 [2018-12-09 19:02:57,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-12-09 19:02:57,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 43. [2018-12-09 19:02:57,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-09 19:02:57,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2018-12-09 19:02:57,192 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 9 [2018-12-09 19:02:57,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:02:57,192 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2018-12-09 19:02:57,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:02:57,192 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2018-12-09 19:02:57,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 19:02:57,193 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:02:57,193 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:02:57,193 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 19:02:57,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:02:57,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1732041064, now seen corresponding path program 1 times [2018-12-09 19:02:57,193 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:02:57,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:57,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:02:57,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:57,194 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:02:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:02:57,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:02:57,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:02:57,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:02:57,210 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:02:57,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:02:57,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:02:57,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:02:57,211 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand 3 states. [2018-12-09 19:02:57,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:02:57,233 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2018-12-09 19:02:57,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:02:57,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-09 19:02:57,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:02:57,234 INFO L225 Difference]: With dead ends: 43 [2018-12-09 19:02:57,234 INFO L226 Difference]: Without dead ends: 41 [2018-12-09 19:02:57,235 INFO L631 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 [2018-12-09 19:02:57,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-09 19:02:57,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-09 19:02:57,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-09 19:02:57,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-12-09 19:02:57,239 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 10 [2018-12-09 19:02:57,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:02:57,239 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-12-09 19:02:57,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:02:57,240 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-12-09 19:02:57,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 19:02:57,240 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:02:57,240 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:02:57,240 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 19:02:57,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:02:57,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1732035106, now seen corresponding path program 1 times [2018-12-09 19:02:57,241 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:02:57,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:57,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:02:57,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:57,242 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:02:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:02:57,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:02:57,259 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:02:57,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:02:57,259 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:02:57,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:02:57,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:02:57,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:02:57,260 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 3 states. [2018-12-09 19:02:57,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:02:57,275 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2018-12-09 19:02:57,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:02:57,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-09 19:02:57,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:02:57,276 INFO L225 Difference]: With dead ends: 41 [2018-12-09 19:02:57,276 INFO L226 Difference]: Without dead ends: 39 [2018-12-09 19:02:57,277 INFO L631 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 [2018-12-09 19:02:57,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-09 19:02:57,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-12-09 19:02:57,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-09 19:02:57,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-12-09 19:02:57,281 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 10 [2018-12-09 19:02:57,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:02:57,281 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-12-09 19:02:57,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:02:57,281 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-12-09 19:02:57,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 19:02:57,281 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:02:57,282 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:02:57,282 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 19:02:57,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:02:57,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1209340330, now seen corresponding path program 1 times [2018-12-09 19:02:57,282 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:02:57,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:57,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:02:57,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:02:57,283 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:02:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:02:57,306 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:02:57,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:02:57,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:02:57,307 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:02:57,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:02:57,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:02:57,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:02:57,308 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 4 states. [2018-12-09 19:02:57,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:02:57,338 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2018-12-09 19:02:57,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:02:57,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-12-09 19:02:57,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:02:57,338 INFO L225 Difference]: With dead ends: 39 [2018-12-09 19:02:57,339 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:02:57,339 INFO L631 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 [2018-12-09 19:02:57,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:02:57,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:02:57,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:02:57,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:02:57,340 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-12-09 19:02:57,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:02:57,340 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:02:57,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:02:57,340 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:02:57,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:02:57,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:02:57,357 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-09 19:02:57,357 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:02:57,357 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:02:57,357 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 19:02:57,358 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:02:57,358 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:02:57,358 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 37) no Hoare annotation was computed. [2018-12-09 19:02:57,358 INFO L448 ceAbstractionStarter]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2018-12-09 19:02:57,358 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2018-12-09 19:02:57,358 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-12-09 19:02:57,358 INFO L448 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2018-12-09 19:02:57,358 INFO L448 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-12-09 19:02:57,358 INFO L448 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2018-12-09 19:02:57,358 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 39) no Hoare annotation was computed. [2018-12-09 19:02:57,358 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 19 42) no Hoare annotation was computed. [2018-12-09 19:02:57,359 INFO L444 ceAbstractionStarter]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= main_~y~0 2147483647) (<= main_~x~0 2147483648)) [2018-12-09 19:02:57,359 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2018-12-09 19:02:57,359 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 19 42) no Hoare annotation was computed. [2018-12-09 19:02:57,359 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2018-12-09 19:02:57,359 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2018-12-09 19:02:57,359 INFO L448 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2018-12-09 19:02:57,359 INFO L448 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2018-12-09 19:02:57,359 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-12-09 19:02:57,359 INFO L448 ceAbstractionStarter]: For program point L34-1(line 34) no Hoare annotation was computed. [2018-12-09 19:02:57,360 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2018-12-09 19:02:57,360 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 19 42) the Hoare annotation is: true [2018-12-09 19:02:57,360 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-12-09 19:02:57,360 INFO L448 ceAbstractionStarter]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2018-12-09 19:02:57,360 INFO L448 ceAbstractionStarter]: For program point L24-2(lines 24 40) no Hoare annotation was computed. [2018-12-09 19:02:57,360 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2018-12-09 19:02:57,360 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2018-12-09 19:02:57,360 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2018-12-09 19:02:57,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:02:57 BoogieIcfgContainer [2018-12-09 19:02:57,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:02:57,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:02:57,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:02:57,369 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:02:57,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:02:56" (3/4) ... [2018-12-09 19:02:57,371 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:02:57,376 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:02:57,376 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:02:57,378 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 19:02:57,379 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 19:02:57,379 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 19:02:57,405 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_30731f44-27bf-40ae-9e6c-e7fae5e36c43/bin-2019/utaipan/witness.graphml [2018-12-09 19:02:57,405 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:02:57,406 INFO L168 Benchmark]: Toolchain (without parser) took 809.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 960.3 MB in the beginning and 1.0 GB in the end (delta: -41.1 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:02:57,407 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:02:57,407 INFO L168 Benchmark]: CACSL2BoogieTranslator took 117.75 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:02:57,407 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.92 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:02:57,407 INFO L168 Benchmark]: Boogie Preprocessor took 12.31 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:02:57,408 INFO L168 Benchmark]: RCFGBuilder took 153.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -124.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:02:57,408 INFO L168 Benchmark]: TraceAbstraction took 474.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.5 MB). Peak memory consumption was 72.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:02:57,408 INFO L168 Benchmark]: Witness Printer took 36.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:02:57,409 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 117.75 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 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 11.92 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.31 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 153.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -124.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 474.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.5 MB). Peak memory consumption was 72.5 MB. Max. memory is 11.5 GB. * Witness Printer took 36.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 27]: 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: 27]: 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 - 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, 32 locations, 8 error locations. SAFE Result, 0.4s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 86 SDtfs, 84 SDslu, 48 SDs, 0 SdLazy, 89 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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=43occurred 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, 0.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 926 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...