./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_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_3acb6c6a-bc24-47c2-bf91-e6be5a6c9474/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3acb6c6a-bc24-47c2-bf91-e6be5a6c9474/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3acb6c6a-bc24-47c2-bf91-e6be5a6c9474/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3acb6c6a-bc24-47c2-bf91-e6be5a6c9474/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3acb6c6a-bc24-47c2-bf91-e6be5a6c9474/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3acb6c6a-bc24-47c2-bf91-e6be5a6c9474/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 e334e85dd18553afecc96b27cf49a003304cbca8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 13:14:48,629 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:14:48,630 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:14:48,636 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:14:48,636 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:14:48,637 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:14:48,637 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:14:48,638 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:14:48,639 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:14:48,640 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:14:48,640 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:14:48,641 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:14:48,641 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:14:48,642 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:14:48,643 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:14:48,643 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:14:48,644 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:14:48,645 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:14:48,646 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:14:48,647 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:14:48,648 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:14:48,649 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:14:48,650 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:14:48,650 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:14:48,651 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:14:48,651 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:14:48,652 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:14:48,653 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:14:48,653 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:14:48,654 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:14:48,654 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:14:48,654 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:14:48,655 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:14:48,655 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:14:48,655 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:14:48,656 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:14:48,656 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3acb6c6a-bc24-47c2-bf91-e6be5a6c9474/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 13:14:48,666 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:14:48,666 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:14:48,667 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:14:48,667 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:14:48,667 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:14:48,667 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:14:48,667 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 13:14:48,668 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:14:48,668 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 13:14:48,668 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 13:14:48,668 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:14:48,668 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:14:48,668 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 13:14:48,668 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:14:48,669 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:14:48,669 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:14:48,669 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:14:48,669 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:14:48,669 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 13:14:48,669 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:14:48,669 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:14:48,669 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:14:48,670 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:14:48,670 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:14:48,670 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:14:48,670 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:14:48,670 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:14:48,670 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:14:48,670 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:14:48,670 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 13:14:48,670 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:14:48,671 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:14:48,671 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 13:14:48,671 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_3acb6c6a-bc24-47c2-bf91-e6be5a6c9474/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 -> e334e85dd18553afecc96b27cf49a003304cbca8 [2018-11-10 13:14:48,695 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:14:48,704 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:14:48,706 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:14:48,707 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:14:48,707 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:14:48,708 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3acb6c6a-bc24-47c2-bf91-e6be5a6c9474/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c [2018-11-10 13:14:48,744 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3acb6c6a-bc24-47c2-bf91-e6be5a6c9474/bin-2019/utaipan/data/35e407643/22be59ecaed14f15bffebd22c10ed91a/FLAG5941abef3 [2018-11-10 13:14:49,043 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:14:49,043 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3acb6c6a-bc24-47c2-bf91-e6be5a6c9474/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c [2018-11-10 13:14:49,048 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3acb6c6a-bc24-47c2-bf91-e6be5a6c9474/bin-2019/utaipan/data/35e407643/22be59ecaed14f15bffebd22c10ed91a/FLAG5941abef3 [2018-11-10 13:14:49,056 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3acb6c6a-bc24-47c2-bf91-e6be5a6c9474/bin-2019/utaipan/data/35e407643/22be59ecaed14f15bffebd22c10ed91a [2018-11-10 13:14:49,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:14:49,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:14:49,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:14:49,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:14:49,064 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:14:49,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:14:49" (1/1) ... [2018-11-10 13:14:49,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc2202b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:14:49, skipping insertion in model container [2018-11-10 13:14:49,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:14:49" (1/1) ... [2018-11-10 13:14:49,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:14:49,093 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:14:49,210 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:14:49,213 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:14:49,225 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:14:49,235 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:14:49,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:14:49 WrapperNode [2018-11-10 13:14:49,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:14:49,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:14:49,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:14:49,236 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:14:49,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:14:49" (1/1) ... [2018-11-10 13:14:49,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:14:49" (1/1) ... [2018-11-10 13:14:49,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:14:49,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:14:49,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:14:49,249 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:14:49,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:14:49" (1/1) ... [2018-11-10 13:14:49,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:14:49" (1/1) ... [2018-11-10 13:14:49,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:14:49" (1/1) ... [2018-11-10 13:14:49,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:14:49" (1/1) ... [2018-11-10 13:14:49,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:14:49" (1/1) ... [2018-11-10 13:14:49,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:14:49" (1/1) ... [2018-11-10 13:14:49,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:14:49" (1/1) ... [2018-11-10 13:14:49,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:14:49,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:14:49,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:14:49,261 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:14:49,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:14:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3acb6c6a-bc24-47c2-bf91-e6be5a6c9474/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 13:14:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:14:49,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:14:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:14:49,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:14:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:14:49,329 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:14:49,436 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:14:49,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:14:49 BoogieIcfgContainer [2018-11-10 13:14:49,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:14:49,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:14:49,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:14:49,440 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:14:49,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:14:49" (1/3) ... [2018-11-10 13:14:49,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fedd964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:14:49, skipping insertion in model container [2018-11-10 13:14:49,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:14:49" (2/3) ... [2018-11-10 13:14:49,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fedd964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:14:49, skipping insertion in model container [2018-11-10 13:14:49,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:14:49" (3/3) ... [2018-11-10 13:14:49,443 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c [2018-11-10 13:14:49,449 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:14:49,453 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-10 13:14:49,461 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-10 13:14:49,483 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:14:49,484 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:14:49,484 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:14:49,484 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:14:49,484 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:14:49,484 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:14:49,484 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:14:49,484 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:14:49,495 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-10 13:14:49,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 13:14:49,499 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:14:49,500 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:14:49,502 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:14:49,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:14:49,506 INFO L82 PathProgramCache]: Analyzing trace with hash 409964900, now seen corresponding path program 1 times [2018-11-10 13:14:49,508 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:14:49,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:14:49,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:14:49,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:14:49,550 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:14:49,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:14:49,601 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 13:14:49,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:14:49,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:14:49,602 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:14:49,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 13:14:49,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 13:14:49,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 13:14:49,614 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2018-11-10 13:14:49,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:14:49,659 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2018-11-10 13:14:49,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 13:14:49,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 13:14:49,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:14:49,667 INFO L225 Difference]: With dead ends: 36 [2018-11-10 13:14:49,667 INFO L226 Difference]: Without dead ends: 22 [2018-11-10 13:14:49,669 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 13:14:49,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-10 13:14:49,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2018-11-10 13:14:49,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-10 13:14:49,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-10 13:14:49,690 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 10 [2018-11-10 13:14:49,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:14:49,690 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-10 13:14:49,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 13:14:49,690 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-10 13:14:49,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 13:14:49,690 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:14:49,690 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:14:49,691 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:14:49,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:14:49,691 INFO L82 PathProgramCache]: Analyzing trace with hash -175989934, now seen corresponding path program 1 times [2018-11-10 13:14:49,691 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:14:49,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:14:49,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:14:49,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:14:49,693 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:14:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:14:49,717 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 13:14:49,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:14:49,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:14:49,718 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:14:49,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 13:14:49,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 13:14:49,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 13:14:49,720 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 3 states. [2018-11-10 13:14:49,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:14:49,746 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-11-10 13:14:49,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 13:14:49,747 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-10 13:14:49,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:14:49,747 INFO L225 Difference]: With dead ends: 21 [2018-11-10 13:14:49,747 INFO L226 Difference]: Without dead ends: 20 [2018-11-10 13:14:49,748 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 13:14:49,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-10 13:14:49,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-10 13:14:49,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 13:14:49,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-10 13:14:49,751 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 11 [2018-11-10 13:14:49,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:14:49,751 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-10 13:14:49,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 13:14:49,751 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-10 13:14:49,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 13:14:49,751 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:14:49,751 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:14:49,752 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:14:49,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:14:49,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1160720602, now seen corresponding path program 1 times [2018-11-10 13:14:49,752 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:14:49,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:14:49,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:14:49,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:14:49,753 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:14:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:14:49,787 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 13:14:49,787 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:14:49,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 13:14:49,788 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:14:49,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:14:49,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:14:49,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:14:49,788 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 4 states. [2018-11-10 13:14:49,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:14:49,809 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-10 13:14:49,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:14:49,809 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-10 13:14:49,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:14:49,810 INFO L225 Difference]: With dead ends: 20 [2018-11-10 13:14:49,810 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 13:14:49,810 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 13:14:49,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 13:14:49,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-10 13:14:49,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 13:14:49,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-10 13:14:49,813 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12 [2018-11-10 13:14:49,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:14:49,814 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-10 13:14:49,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:14:49,814 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-10 13:14:49,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 13:14:49,814 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:14:49,814 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:14:49,815 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:14:49,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:14:49,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1622600236, now seen corresponding path program 1 times [2018-11-10 13:14:49,815 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:14:49,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:14:49,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:14:49,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:14:49,817 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:14:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:14:49,832 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 13:14:49,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:14:49,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:14:49,832 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:14:49,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 13:14:49,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 13:14:49,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 13:14:49,833 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-11-10 13:14:49,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:14:49,840 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-11-10 13:14:49,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 13:14:49,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-10 13:14:49,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:14:49,841 INFO L225 Difference]: With dead ends: 21 [2018-11-10 13:14:49,841 INFO L226 Difference]: Without dead ends: 20 [2018-11-10 13:14:49,842 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 13:14:49,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-10 13:14:49,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2018-11-10 13:14:49,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-10 13:14:49,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-10 13:14:49,844 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 13 [2018-11-10 13:14:49,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:14:49,844 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-10 13:14:49,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 13:14:49,844 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-10 13:14:49,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 13:14:49,844 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:14:49,844 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:14:49,845 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:14:49,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:14:49,845 INFO L82 PathProgramCache]: Analyzing trace with hash 108357052, now seen corresponding path program 1 times [2018-11-10 13:14:49,845 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:14:49,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:14:49,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:14:49,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:14:49,846 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:14:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:14:49,870 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:14:49,870 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 13:14:49,870 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 13:14:49,871 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-11-10 13:14:49,872 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [17], [20], [21], [22], [24], [26], [28], [40], [41], [42] [2018-11-10 13:14:49,901 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 13:14:49,901 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 13:14:50,035 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 13:14:50,037 INFO L272 AbstractInterpreter]: Visited 14 different actions 70 times. Merged at 7 different actions 49 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 6 variables. [2018-11-10 13:14:50,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:14:50,042 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 13:14:50,098 INFO L227 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 31.82% of their original sizes. [2018-11-10 13:14:50,098 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 13:14:50,203 INFO L415 sIntCurrentIteration]: We unified 16 AI predicates to 16 [2018-11-10 13:14:50,204 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 13:14:50,204 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 13:14:50,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [3] total 10 [2018-11-10 13:14:50,204 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:14:50,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 13:14:50,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 13:14:50,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-10 13:14:50,205 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 9 states. [2018-11-10 13:14:50,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:14:50,422 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2018-11-10 13:14:50,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 13:14:50,422 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2018-11-10 13:14:50,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:14:50,423 INFO L225 Difference]: With dead ends: 32 [2018-11-10 13:14:50,423 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 13:14:50,423 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-11-10 13:14:50,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 13:14:50,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 13:14:50,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 13:14:50,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 13:14:50,424 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-11-10 13:14:50,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:14:50,425 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:14:50,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 13:14:50,426 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 13:14:50,426 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 13:14:50,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 13:14:50,458 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-10 13:14:50,580 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 13:14:50,580 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:14:50,580 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:14:50,580 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 13:14:50,580 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:14:50,580 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:14:50,580 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-10 13:14:50,581 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 30) no Hoare annotation was computed. [2018-11-10 13:14:50,581 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-10 13:14:50,581 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-10 13:14:50,581 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 26) no Hoare annotation was computed. [2018-11-10 13:14:50,581 INFO L421 ceAbstractionStarter]: At program point L21-2(lines 20 27) the Hoare annotation is: (let ((.cse0 (* 2 main_~m~0)) (.cse1 (* 2 main_~n~0))) (and (<= 0 main_~v2~0) (<= (+ main_~v1~0 main_~v2~0) 2147483647) (<= .cse0 4294967294) (<= main_~v2~0 main_~m~0) (<= 0 (* 2 main_~v1~0)) (<= .cse1 4294967294) (<= 2 .cse0) (<= 0 (+ .cse1 4294967296)))) [2018-11-10 13:14:50,581 INFO L425 ceAbstractionStarter]: For program point L17(lines 17 28) no Hoare annotation was computed. [2018-11-10 13:14:50,581 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 28) no Hoare annotation was computed. [2018-11-10 13:14:50,582 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 30) no Hoare annotation was computed. [2018-11-10 13:14:50,582 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-10 13:14:50,582 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 30) the Hoare annotation is: true [2018-11-10 13:14:50,582 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-10 13:14:50,582 INFO L425 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-10 13:14:50,582 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 27) no Hoare annotation was computed. [2018-11-10 13:14:50,582 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-10 13:14:50,582 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-10 13:14:50,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:14:50 BoogieIcfgContainer [2018-11-10 13:14:50,588 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:14:50,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:14:50,589 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:14:50,589 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:14:50,589 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:14:49" (3/4) ... [2018-11-10 13:14:50,592 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 13:14:50,595 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 13:14:50,596 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 13:14:50,598 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 13:14:50,598 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 13:14:50,598 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 13:14:50,598 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 13:14:50,621 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3acb6c6a-bc24-47c2-bf91-e6be5a6c9474/bin-2019/utaipan/witness.graphml [2018-11-10 13:14:50,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:14:50,622 INFO L168 Benchmark]: Toolchain (without parser) took 1562.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 959.2 MB in the beginning and 977.9 MB in the end (delta: -18.7 MB). Peak memory consumption was 118.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:14:50,623 INFO L168 Benchmark]: CDTParser took 0.16 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 13:14:50,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.54 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 947.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:14:50,623 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.73 ms. Allocated memory is still 1.0 GB. Free memory is still 947.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:14:50,624 INFO L168 Benchmark]: Boogie Preprocessor took 12.44 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:14:50,624 INFO L168 Benchmark]: RCFGBuilder took 175.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -183.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:14:50,624 INFO L168 Benchmark]: TraceAbstraction took 1151.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.3 MB in the end (delta: 144.5 MB). Peak memory consumption was 144.5 MB. Max. memory is 11.5 GB. [2018-11-10 13:14:50,625 INFO L168 Benchmark]: Witness Printer took 32.82 ms. Allocated memory is still 1.2 GB. Free memory was 980.6 MB in the beginning and 977.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:14:50,627 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.54 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 947.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.73 ms. Allocated memory is still 1.0 GB. Free memory is still 947.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.44 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 175.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -183.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1151.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.3 MB in the end (delta: 144.5 MB). Peak memory consumption was 144.5 MB. Max. memory is 11.5 GB. * Witness Printer took 32.82 ms. Allocated memory is still 1.2 GB. Free memory was 980.6 MB in the beginning and 977.9 MB 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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: 23]: 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: 20]: Loop Invariant Derived loop invariant: ((((((0 <= v2 && v1 + v2 <= 2147483647) && 2 * m <= 4294967294) && v2 <= m) && 0 <= 2 * v1) && 2 * n <= 4294967294) && 2 <= 2 * m) && 0 <= 2 * n + 4294967296 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 4 error locations. SAFE Result, 1.1s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 66 SDtfs, 48 SDslu, 59 SDs, 0 SdLazy, 45 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9791666666666666 AbsIntWeakeningRatio, 0.375 AbsIntAvgWeakeningVarsNumRemoved, 11.25 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 43 HoareAnnotationTreeSize, 5 FomulaSimplifications, 186 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 243 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 1500 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...