./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bef5651e-a11a-4ed1-905a-25f7272353e6/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bef5651e-a11a-4ed1-905a-25f7272353e6/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bef5651e-a11a-4ed1-905a-25f7272353e6/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bef5651e-a11a-4ed1-905a-25f7272353e6/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bef5651e-a11a-4ed1-905a-25f7272353e6/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bef5651e-a11a-4ed1-905a-25f7272353e6/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 d38e7f8e829b6fb879eed3e9eda17afd63dbb323 ................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 12:33:38,439 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:33:38,440 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:33:38,449 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:33:38,449 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:33:38,450 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:33:38,451 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:33:38,452 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:33:38,453 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:33:38,453 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:33:38,454 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:33:38,454 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:33:38,455 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:33:38,456 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:33:38,456 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:33:38,457 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:33:38,457 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:33:38,459 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:33:38,460 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:33:38,461 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:33:38,462 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:33:38,463 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:33:38,464 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:33:38,464 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:33:38,465 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:33:38,465 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:33:38,466 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:33:38,467 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:33:38,467 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:33:38,468 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:33:38,468 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:33:38,469 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:33:38,469 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:33:38,469 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:33:38,470 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:33:38,470 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:33:38,471 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bef5651e-a11a-4ed1-905a-25f7272353e6/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 12:33:38,481 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:33:38,481 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:33:38,482 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:33:38,482 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 12:33:38,482 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 12:33:38,482 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 12:33:38,482 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 12:33:38,483 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 12:33:38,483 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 12:33:38,483 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 12:33:38,483 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 12:33:38,483 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:33:38,484 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 12:33:38,484 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:33:38,484 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:33:38,484 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:33:38,484 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:33:38,484 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:33:38,484 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 12:33:38,484 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:33:38,485 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:33:38,485 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:33:38,485 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:33:38,485 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:33:38,485 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:33:38,485 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:33:38,486 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:33:38,486 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:33:38,486 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:33:38,486 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 12:33:38,486 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:33:38,486 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:33:38,486 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 12:33:38,486 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_bef5651e-a11a-4ed1-905a-25f7272353e6/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 -> d38e7f8e829b6fb879eed3e9eda17afd63dbb323 [2018-11-10 12:33:38,512 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:33:38,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:33:38,523 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:33:38,524 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:33:38,524 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:33:38,524 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bef5651e-a11a-4ed1-905a-25f7272353e6/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5_true-termination_true-no-overflow.c [2018-11-10 12:33:38,562 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bef5651e-a11a-4ed1-905a-25f7272353e6/bin-2019/utaipan/data/5b0f8de66/f3c9c8445ab84ba090a172411dffc87e/FLAGbf9108db6 [2018-11-10 12:33:38,961 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:33:38,962 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bef5651e-a11a-4ed1-905a-25f7272353e6/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5_true-termination_true-no-overflow.c [2018-11-10 12:33:38,966 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bef5651e-a11a-4ed1-905a-25f7272353e6/bin-2019/utaipan/data/5b0f8de66/f3c9c8445ab84ba090a172411dffc87e/FLAGbf9108db6 [2018-11-10 12:33:38,975 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bef5651e-a11a-4ed1-905a-25f7272353e6/bin-2019/utaipan/data/5b0f8de66/f3c9c8445ab84ba090a172411dffc87e [2018-11-10 12:33:38,978 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:33:38,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:33:38,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:33:38,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:33:38,983 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:33:38,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:33:38" (1/1) ... [2018-11-10 12:33:38,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb7591c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:38, skipping insertion in model container [2018-11-10 12:33:38,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:33:38" (1/1) ... [2018-11-10 12:33:38,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:33:39,003 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:33:39,097 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:33:39,099 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:33:39,108 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:33:39,116 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:33:39,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:39 WrapperNode [2018-11-10 12:33:39,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:33:39,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:33:39,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:33:39,117 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:33:39,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:39" (1/1) ... [2018-11-10 12:33:39,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:39" (1/1) ... [2018-11-10 12:33:39,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:33:39,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:33:39,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:33:39,128 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:33:39,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:39" (1/1) ... [2018-11-10 12:33:39,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:39" (1/1) ... [2018-11-10 12:33:39,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:39" (1/1) ... [2018-11-10 12:33:39,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:39" (1/1) ... [2018-11-10 12:33:39,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:39" (1/1) ... [2018-11-10 12:33:39,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:39" (1/1) ... [2018-11-10 12:33:39,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:39" (1/1) ... [2018-11-10 12:33:39,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:33:39,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:33:39,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:33:39,141 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:33:39,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bef5651e-a11a-4ed1-905a-25f7272353e6/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:33:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:33:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:33:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:33:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:33:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:33:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:33:39,310 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:33:39,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:33:39 BoogieIcfgContainer [2018-11-10 12:33:39,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:33:39,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:33:39,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:33:39,313 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:33:39,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:33:38" (1/3) ... [2018-11-10 12:33:39,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d741c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:33:39, skipping insertion in model container [2018-11-10 12:33:39,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:39" (2/3) ... [2018-11-10 12:33:39,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d741c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:33:39, skipping insertion in model container [2018-11-10 12:33:39,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:33:39" (3/3) ... [2018-11-10 12:33:39,315 INFO L112 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig5_true-termination_true-no-overflow.c [2018-11-10 12:33:39,321 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:33:39,327 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-10 12:33:39,335 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-10 12:33:39,355 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:33:39,355 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:33:39,356 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:33:39,356 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:33:39,356 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:33:39,356 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:33:39,356 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:33:39,356 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:33:39,366 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-10 12:33:39,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 12:33:39,369 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:33:39,369 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:33:39,371 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:33:39,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:33:39,374 INFO L82 PathProgramCache]: Analyzing trace with hash -895809593, now seen corresponding path program 1 times [2018-11-10 12:33:39,376 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:33:39,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:33:39,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:33:39,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:33:39,404 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:33:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:33:39,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:33:39,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:33:39,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 12:33:39,462 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:33:39,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 12:33:39,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 12:33:39,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:33:39,478 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-11-10 12:33:39,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:33:39,539 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2018-11-10 12:33:39,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 12:33:39,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-10 12:33:39,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:33:39,547 INFO L225 Difference]: With dead ends: 37 [2018-11-10 12:33:39,547 INFO L226 Difference]: Without dead ends: 23 [2018-11-10 12:33:39,549 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:33:39,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-10 12:33:39,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-11-10 12:33:39,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-10 12:33:39,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-11-10 12:33:39,571 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 8 [2018-11-10 12:33:39,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:33:39,571 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-11-10 12:33:39,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 12:33:39,572 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-11-10 12:33:39,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 12:33:39,572 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:33:39,572 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:33:39,573 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:33:39,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:33:39,573 INFO L82 PathProgramCache]: Analyzing trace with hash -2000293559, now seen corresponding path program 1 times [2018-11-10 12:33:39,573 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:33:39,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:33:39,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:33:39,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:33:39,575 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:33:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:33:39,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:33:39,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:33:39,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 12:33:39,617 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:33:39,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 12:33:39,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 12:33:39,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 12:33:39,618 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 4 states. [2018-11-10 12:33:39,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:33:39,670 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-11-10 12:33:39,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 12:33:39,671 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-10 12:33:39,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:33:39,671 INFO L225 Difference]: With dead ends: 22 [2018-11-10 12:33:39,671 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 12:33:39,672 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 12:33:39,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 12:33:39,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-10 12:33:39,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 12:33:39,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-11-10 12:33:39,674 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 9 [2018-11-10 12:33:39,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:33:39,674 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-11-10 12:33:39,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 12:33:39,675 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-11-10 12:33:39,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 12:33:39,675 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:33:39,675 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:33:39,675 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:33:39,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:33:39,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1863240011, now seen corresponding path program 1 times [2018-11-10 12:33:39,676 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:33:39,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:33:39,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:33:39,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:33:39,677 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:33:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:33:39,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:33:39,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:33:39,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 12:33:39,696 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:33:39,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 12:33:39,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 12:33:39,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:33:39,697 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2018-11-10 12:33:39,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:33:39,730 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-11-10 12:33:39,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 12:33:39,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-10 12:33:39,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:33:39,732 INFO L225 Difference]: With dead ends: 26 [2018-11-10 12:33:39,732 INFO L226 Difference]: Without dead ends: 24 [2018-11-10 12:33:39,732 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:33:39,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-10 12:33:39,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-10 12:33:39,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-10 12:33:39,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-11-10 12:33:39,736 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 11 [2018-11-10 12:33:39,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:33:39,737 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-11-10 12:33:39,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 12:33:39,737 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-11-10 12:33:39,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 12:33:39,737 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:33:39,737 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:33:39,738 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:33:39,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:33:39,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1255492539, now seen corresponding path program 1 times [2018-11-10 12:33:39,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:33:39,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:33:39,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:33:39,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:33:39,739 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:33:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:33:39,848 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:33:39,848 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 12:33:39,848 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 12:33:39,849 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-11-10 12:33:39,850 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [14], [15], [16], [18], [20], [22], [24], [26], [32], [33], [34] [2018-11-10 12:33:39,890 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 12:33:39,890 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 12:33:39,979 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-10 12:33:40,106 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 12:33:40,107 INFO L272 AbstractInterpreter]: Visited 14 different actions 41 times. Merged at 8 different actions 24 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 3 variables. [2018-11-10 12:33:40,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:33:40,122 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 12:33:40,192 INFO L219 lantSequenceWeakener]: Could never weaken! [2018-11-10 12:33:40,192 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 12:33:40,240 INFO L415 sIntCurrentIteration]: We unified 15 AI predicates to 15 [2018-11-10 12:33:40,240 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 12:33:40,241 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 12:33:40,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2018-11-10 12:33:40,241 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:33:40,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 12:33:40,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 12:33:40,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 12:33:40,242 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 5 states. [2018-11-10 12:33:40,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:33:40,391 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-11-10 12:33:40,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 12:33:40,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-11-10 12:33:40,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:33:40,392 INFO L225 Difference]: With dead ends: 24 [2018-11-10 12:33:40,392 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 12:33:40,394 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-10 12:33:40,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 12:33:40,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 12:33:40,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 12:33:40,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 12:33:40,395 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-11-10 12:33:40,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:33:40,395 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:33:40,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 12:33:40,395 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 12:33:40,395 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 12:33:40,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 12:33:40,545 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 22 [2018-11-10 12:33:40,549 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 12:33:40,549 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 12:33:40,549 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 12:33:40,549 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 12:33:40,549 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 12:33:40,550 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 12:33:40,550 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 19) no Hoare annotation was computed. [2018-11-10 12:33:40,550 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-11-10 12:33:40,550 INFO L425 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2018-11-10 12:33:40,550 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-10 12:33:40,550 INFO L425 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-11-10 12:33:40,550 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 19) no Hoare annotation was computed. [2018-11-10 12:33:40,550 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2018-11-10 12:33:40,551 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 19) the Hoare annotation is: true [2018-11-10 12:33:40,551 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-11-10 12:33:40,551 INFO L425 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2018-11-10 12:33:40,551 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-11-10 12:33:40,551 INFO L425 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-11-10 12:33:40,551 INFO L425 ceAbstractionStarter]: For program point L16-2(line 16) no Hoare annotation was computed. [2018-11-10 12:33:40,551 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 17) no Hoare annotation was computed. [2018-11-10 12:33:40,551 INFO L425 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2018-11-10 12:33:40,552 INFO L421 ceAbstractionStarter]: At program point L14-3(lines 14 17) the Hoare annotation is: (let ((.cse1 (<= main_~x~0 (+ main_~y~0 2147483645)))) (or (let ((.cse0 (* 2 main_~y~0))) (and (<= .cse0 4) (<= 2 .cse0) (<= 0 (+ (* 2 main_~x~0) 4)) .cse1)) (and (<= main_~y~0 (+ main_~x~0 2147483650)) (<= main_~y~0 2) (<= 2 main_~y~0) .cse1))) [2018-11-10 12:33:40,552 INFO L425 ceAbstractionStarter]: For program point L14-4(lines 14 17) no Hoare annotation was computed. [2018-11-10 12:33:40,552 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2018-11-10 12:33:40,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:33:40 BoogieIcfgContainer [2018-11-10 12:33:40,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:33:40,561 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:33:40,561 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:33:40,561 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:33:40,562 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:33:39" (3/4) ... [2018-11-10 12:33:40,566 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 12:33:40,571 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 12:33:40,572 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 12:33:40,575 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-10 12:33:40,576 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 12:33:40,576 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 12:33:40,609 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bef5651e-a11a-4ed1-905a-25f7272353e6/bin-2019/utaipan/witness.graphml [2018-11-10 12:33:40,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:33:40,609 INFO L168 Benchmark]: Toolchain (without parser) took 1631.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 959.2 MB in the beginning and 1.0 GB in the end (delta: -41.0 MB). Peak memory consumption was 102.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:33:40,610 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:33:40,610 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.18 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 12:33:40,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 10.96 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:33:40,611 INFO L168 Benchmark]: Boogie Preprocessor took 12.34 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:33:40,611 INFO L168 Benchmark]: RCFGBuilder took 170.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -185.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2018-11-10 12:33:40,612 INFO L168 Benchmark]: TraceAbstraction took 1249.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 131.2 MB). Peak memory consumption was 131.2 MB. Max. memory is 11.5 GB. [2018-11-10 12:33:40,612 INFO L168 Benchmark]: Witness Printer took 48.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:33:40,616 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 137.18 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 10.96 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.34 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 170.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -185.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1249.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 131.2 MB). Peak memory consumption was 131.2 MB. Max. memory is 11.5 GB. * Witness Printer took 48.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((2 * y <= 4 && 2 <= 2 * y) && 0 <= 2 * x + 4) && x <= y + 2147483645) || (((y <= x + 2147483650 && y <= 2) && 2 <= y) && x <= y + 2147483645) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 6 error locations. SAFE Result, 1.2s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 SDtfs, 24 SDslu, 35 SDs, 0 SdLazy, 60 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.13333333333333333 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 45 HoareAnnotationTreeSize, 5 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 152 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 2178 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...