./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Nyala-2lex_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_1762e30c-d410-4f2c-85b3-eb64df8a27c5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1762e30c-d410-4f2c-85b3-eb64df8a27c5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1762e30c-d410-4f2c-85b3-eb64df8a27c5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1762e30c-d410-4f2c-85b3-eb64df8a27c5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1762e30c-d410-4f2c-85b3-eb64df8a27c5/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1762e30c-d410-4f2c-85b3-eb64df8a27c5/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 054e86c0b11592f66f6efc3e0f84c6f8bee49b59 ................................................................................................................................................................................................................................................................................................................................................................................................................ 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 19:16:07,187 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:16:07,188 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:16:07,194 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:16:07,194 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:16:07,195 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:16:07,196 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:16:07,196 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:16:07,197 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:16:07,198 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:16:07,198 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:16:07,198 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:16:07,199 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:16:07,199 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:16:07,200 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:16:07,200 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:16:07,201 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:16:07,201 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:16:07,202 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:16:07,203 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:16:07,204 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:16:07,204 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:16:07,205 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:16:07,206 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:16:07,206 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:16:07,206 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:16:07,207 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:16:07,207 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:16:07,207 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:16:07,208 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:16:07,208 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:16:07,209 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:16:07,209 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:16:07,209 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:16:07,209 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:16:07,210 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:16:07,210 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1762e30c-d410-4f2c-85b3-eb64df8a27c5/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-09 19:16:07,217 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:16:07,217 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:16:07,218 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:16:07,218 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:16:07,218 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:16:07,218 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:16:07,218 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:16:07,218 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:16:07,218 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:16:07,219 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:16:07,219 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:16:07,219 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:16:07,219 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:16:07,219 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:16:07,220 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 19:16:07,220 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:16:07,220 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:16:07,220 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:16:07,220 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:16:07,220 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:16:07,220 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-09 19:16:07,220 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:16:07,221 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:16:07,221 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:16:07,221 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:16:07,221 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:16:07,221 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:16:07,221 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:16:07,221 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:16:07,222 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:16:07,222 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:16:07,222 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:16:07,222 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:16:07,222 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:16:07,222 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:16:07,222 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_1762e30c-d410-4f2c-85b3-eb64df8a27c5/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 -> 054e86c0b11592f66f6efc3e0f84c6f8bee49b59 [2018-12-09 19:16:07,240 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:16:07,249 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:16:07,252 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:16:07,253 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:16:07,253 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:16:07,254 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1762e30c-d410-4f2c-85b3-eb64df8a27c5/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-09 19:16:07,300 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1762e30c-d410-4f2c-85b3-eb64df8a27c5/bin-2019/utaipan/data/851c761c1/fdd34b0ae0844739a20e3a6868ff53a5/FLAGf31a82cf1 [2018-12-09 19:16:07,604 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:16:07,604 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1762e30c-d410-4f2c-85b3-eb64df8a27c5/sv-benchmarks/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-09 19:16:07,608 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1762e30c-d410-4f2c-85b3-eb64df8a27c5/bin-2019/utaipan/data/851c761c1/fdd34b0ae0844739a20e3a6868ff53a5/FLAGf31a82cf1 [2018-12-09 19:16:08,043 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1762e30c-d410-4f2c-85b3-eb64df8a27c5/bin-2019/utaipan/data/851c761c1/fdd34b0ae0844739a20e3a6868ff53a5 [2018-12-09 19:16:08,045 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:16:08,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:16:08,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:16:08,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:16:08,049 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:16:08,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:16:08" (1/1) ... [2018-12-09 19:16:08,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c56171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:16:08, skipping insertion in model container [2018-12-09 19:16:08,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:16:08" (1/1) ... [2018-12-09 19:16:08,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:16:08,064 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:16:08,146 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:16:08,149 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:16:08,157 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:16:08,165 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:16:08,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:16:08 WrapperNode [2018-12-09 19:16:08,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:16:08,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:16:08,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:16:08,166 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:16:08,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:16:08" (1/1) ... [2018-12-09 19:16:08,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:16:08" (1/1) ... [2018-12-09 19:16:08,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:16:08,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:16:08,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:16:08,178 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:16:08,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:16:08" (1/1) ... [2018-12-09 19:16:08,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:16:08" (1/1) ... [2018-12-09 19:16:08,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:16:08" (1/1) ... [2018-12-09 19:16:08,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:16:08" (1/1) ... [2018-12-09 19:16:08,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:16:08" (1/1) ... [2018-12-09 19:16:08,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:16:08" (1/1) ... [2018-12-09 19:16:08,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:16:08" (1/1) ... [2018-12-09 19:16:08,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:16:08,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:16:08,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:16:08,190 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:16:08,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:16:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1762e30c-d410-4f2c-85b3-eb64df8a27c5/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 19:16:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:16:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:16:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:16:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:16:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:16:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:16:08,337 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:16:08,337 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 19:16:08,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:16:08 BoogieIcfgContainer [2018-12-09 19:16:08,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:16:08,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:16:08,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:16:08,339 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:16:08,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:16:08" (1/3) ... [2018-12-09 19:16:08,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e37ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:16:08, skipping insertion in model container [2018-12-09 19:16:08,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:16:08" (2/3) ... [2018-12-09 19:16:08,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e37ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:16:08, skipping insertion in model container [2018-12-09 19:16:08,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:16:08" (3/3) ... [2018-12-09 19:16:08,341 INFO L112 eAbstractionObserver]: Analyzing ICFG Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-09 19:16:08,346 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:16:08,350 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-09 19:16:08,358 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-09 19:16:08,375 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:16:08,375 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:16:08,375 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:16:08,375 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:16:08,375 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:16:08,375 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:16:08,375 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:16:08,375 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:16:08,385 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-12-09 19:16:08,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 19:16:08,388 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:16:08,388 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:16:08,389 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 19:16:08,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:16:08,392 INFO L82 PathProgramCache]: Analyzing trace with hash 998107396, now seen corresponding path program 1 times [2018-12-09 19:16:08,393 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:16:08,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:16:08,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:16:08,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:16:08,424 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:16:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:16:08,468 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 19:16:08,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:16:08,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:16:08,470 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:16:08,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:16:08,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:16:08,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:16:08,481 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-12-09 19:16:08,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:16:08,502 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-12-09 19:16:08,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:16:08,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-09 19:16:08,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:16:08,508 INFO L225 Difference]: With dead ends: 25 [2018-12-09 19:16:08,508 INFO L226 Difference]: Without dead ends: 14 [2018-12-09 19:16:08,510 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 19:16:08,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-12-09 19:16:08,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-12-09 19:16:08,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-09 19:16:08,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-12-09 19:16:08,529 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 7 [2018-12-09 19:16:08,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:16:08,530 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-12-09 19:16:08,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:16:08,530 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-12-09 19:16:08,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 19:16:08,530 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:16:08,530 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:16:08,530 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 19:16:08,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:16:08,531 INFO L82 PathProgramCache]: Analyzing trace with hash 876558251, now seen corresponding path program 1 times [2018-12-09 19:16:08,531 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:16:08,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:16:08,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:16:08,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:16:08,532 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:16:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:16:08,543 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 19:16:08,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:16:08,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:16:08,544 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:16:08,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:16:08,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:16:08,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:16:08,545 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2018-12-09 19:16:08,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:16:08,556 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-12-09 19:16:08,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:16:08,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-09 19:16:08,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:16:08,557 INFO L225 Difference]: With dead ends: 15 [2018-12-09 19:16:08,557 INFO L226 Difference]: Without dead ends: 14 [2018-12-09 19:16:08,558 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 19:16:08,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-12-09 19:16:08,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2018-12-09 19:16:08,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-12-09 19:16:08,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-12-09 19:16:08,560 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2018-12-09 19:16:08,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:16:08,560 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-12-09 19:16:08,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:16:08,560 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-12-09 19:16:08,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 19:16:08,560 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:16:08,560 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:16:08,560 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 19:16:08,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:16:08,561 INFO L82 PathProgramCache]: Analyzing trace with hash 558890797, now seen corresponding path program 1 times [2018-12-09 19:16:08,561 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:16:08,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:16:08,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:16:08,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:16:08,562 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:16:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:16:08,576 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 19:16:08,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:16:08,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:16:08,576 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:16:08,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:16:08,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:16:08,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:16:08,577 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 3 states. [2018-12-09 19:16:08,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:16:08,583 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-12-09 19:16:08,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:16:08,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-09 19:16:08,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:16:08,583 INFO L225 Difference]: With dead ends: 13 [2018-12-09 19:16:08,583 INFO L226 Difference]: Without dead ends: 12 [2018-12-09 19:16:08,584 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 19:16:08,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-09 19:16:08,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-09 19:16:08,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-09 19:16:08,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2018-12-09 19:16:08,586 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2018-12-09 19:16:08,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:16:08,586 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-12-09 19:16:08,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:16:08,586 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-12-09 19:16:08,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 19:16:08,587 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:16:08,587 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:16:08,587 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 19:16:08,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:16:08,587 INFO L82 PathProgramCache]: Analyzing trace with hash 145745577, now seen corresponding path program 1 times [2018-12-09 19:16:08,587 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:16:08,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:16:08,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:16:08,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:16:08,588 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:16:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:16:08,602 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 19:16:08,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:16:08,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:16:08,602 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:16:08,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:16:08,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:16:08,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:16:08,603 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 3 states. [2018-12-09 19:16:08,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:16:08,610 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-12-09 19:16:08,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:16:08,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-12-09 19:16:08,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:16:08,610 INFO L225 Difference]: With dead ends: 13 [2018-12-09 19:16:08,611 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:16:08,611 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 19:16:08,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:16:08,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:16:08,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:16:08,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:16:08,612 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-12-09 19:16:08,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:16:08,612 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:16:08,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:16:08,612 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:16:08,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:16:08,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:16:08,630 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-09 19:16:08,631 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:16:08,631 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:16:08,631 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 19:16:08,631 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:16:08,631 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:16:08,631 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-12-09 19:16:08,631 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 15 27) no Hoare annotation was computed. [2018-12-09 19:16:08,631 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 24) no Hoare annotation was computed. [2018-12-09 19:16:08,631 INFO L444 ceAbstractionStarter]: At program point L21-2(lines 19 25) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= main_~y~0 2147483647)) [2018-12-09 19:16:08,632 INFO L448 ceAbstractionStarter]: For program point L19-2(lines 19 25) no Hoare annotation was computed. [2018-12-09 19:16:08,632 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 15 27) no Hoare annotation was computed. [2018-12-09 19:16:08,632 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-12-09 19:16:08,632 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-12-09 19:16:08,632 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 15 27) the Hoare annotation is: true [2018-12-09 19:16:08,632 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-09 19:16:08,632 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-12-09 19:16:08,632 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-12-09 19:16:08,632 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-12-09 19:16:08,632 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-12-09 19:16:08,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:16:08 BoogieIcfgContainer [2018-12-09 19:16:08,639 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:16:08,640 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:16:08,640 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:16:08,640 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:16:08,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:16:08" (3/4) ... [2018-12-09 19:16:08,642 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:16:08,646 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:16:08,646 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:16:08,648 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 19:16:08,648 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 19:16:08,648 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 19:16:08,671 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1762e30c-d410-4f2c-85b3-eb64df8a27c5/bin-2019/utaipan/witness.graphml [2018-12-09 19:16:08,671 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:16:08,671 INFO L168 Benchmark]: Toolchain (without parser) took 626.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -77.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:16:08,672 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:16:08,673 INFO L168 Benchmark]: CACSL2BoogieTranslator took 118.71 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:16:08,673 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.94 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:16:08,673 INFO L168 Benchmark]: Boogie Preprocessor took 11.61 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:16:08,673 INFO L168 Benchmark]: RCFGBuilder took 147.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -136.5 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:16:08,674 INFO L168 Benchmark]: TraceAbstraction took 301.81 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:16:08,674 INFO L168 Benchmark]: Witness Printer took 31.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:16:08,675 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 118.71 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.94 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.61 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 147.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -136.5 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 301.81 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Witness Printer took 31.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 4 error locations. SAFE Result, 0.2s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 14 SDslu, 21 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 11 HoareAnnotationTreeSize, 5 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 508 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...