./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/bitvector/gcd_3_true-unreach-call_true-no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ea516fba-ed0d-4958-8d86-5b32b5fc1740/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ea516fba-ed0d-4958-8d86-5b32b5fc1740/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ea516fba-ed0d-4958-8d86-5b32b5fc1740/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ea516fba-ed0d-4958-8d86-5b32b5fc1740/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_3_true-unreach-call_true-no-overflow.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ea516fba-ed0d-4958-8d86-5b32b5fc1740/bin-2019/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ea516fba-ed0d-4958-8d86-5b32b5fc1740/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 32bit --witnessprinter.graph.data.programhash 02e9294118e002d2445af62127a7232f85fd6228 ............................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:46:55,683 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:46:55,684 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:46:55,694 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:46:55,695 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:46:55,695 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:46:55,697 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:46:55,698 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:46:55,700 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:46:55,701 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:46:55,702 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:46:55,702 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:46:55,703 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:46:55,705 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:46:55,706 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:46:55,706 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:46:55,707 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:46:55,709 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:46:55,711 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:46:55,712 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:46:55,713 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:46:55,714 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:46:55,717 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:46:55,717 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:46:55,717 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:46:55,718 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:46:55,719 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:46:55,721 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:46:55,721 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:46:55,722 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:46:55,722 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:46:55,723 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:46:55,723 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:46:55,723 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:46:55,725 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:46:55,726 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:46:55,726 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ea516fba-ed0d-4958-8d86-5b32b5fc1740/bin-2019/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2018-10-27 05:46:55,739 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:46:55,739 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:46:55,740 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:46:55,740 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 05:46:55,741 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 05:46:55,741 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 05:46:55,741 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 05:46:55,741 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 05:46:55,741 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 05:46:55,741 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 05:46:55,742 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 05:46:55,742 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:46:55,742 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 05:46:55,743 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:46:55,743 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:46:55,743 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 05:46:55,743 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:46:55,743 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:46:55,743 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:46:55,745 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:46:55,746 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:46:55,746 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 05:46:55,746 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:46:55,746 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:46:55,746 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:46:55,746 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:46:55,747 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:46:55,747 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:46:55,747 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:46:55,747 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:46:55,747 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:46:55,748 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:46:55,748 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 05:46:55,748 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:46:55,748 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:46:55,748 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 05:46:55,748 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_ea516fba-ed0d-4958-8d86-5b32b5fc1740/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02e9294118e002d2445af62127a7232f85fd6228 [2018-10-27 05:46:55,794 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:46:55,810 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:46:55,815 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:46:55,816 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:46:55,817 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:46:55,817 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ea516fba-ed0d-4958-8d86-5b32b5fc1740/bin-2019/utaipan/../../sv-benchmarks/c/bitvector/gcd_3_true-unreach-call_true-no-overflow.i [2018-10-27 05:46:55,864 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ea516fba-ed0d-4958-8d86-5b32b5fc1740/bin-2019/utaipan/data/359df08b6/fdf779eb2c804d9d972c595194fd8aa9/FLAG15840d96c [2018-10-27 05:46:56,232 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:46:56,232 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ea516fba-ed0d-4958-8d86-5b32b5fc1740/sv-benchmarks/c/bitvector/gcd_3_true-unreach-call_true-no-overflow.i [2018-10-27 05:46:56,236 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ea516fba-ed0d-4958-8d86-5b32b5fc1740/bin-2019/utaipan/data/359df08b6/fdf779eb2c804d9d972c595194fd8aa9/FLAG15840d96c [2018-10-27 05:46:56,246 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ea516fba-ed0d-4958-8d86-5b32b5fc1740/bin-2019/utaipan/data/359df08b6/fdf779eb2c804d9d972c595194fd8aa9 [2018-10-27 05:46:56,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:46:56,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:46:56,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:46:56,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:46:56,254 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:46:56,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:46:56" (1/1) ... [2018-10-27 05:46:56,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59845b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:46:56, skipping insertion in model container [2018-10-27 05:46:56,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:46:56" (1/1) ... [2018-10-27 05:46:56,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:46:56,279 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:46:56,397 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:46:56,399 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:46:56,413 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:46:56,425 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:46:56,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:46:56 WrapperNode [2018-10-27 05:46:56,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:46:56,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:46:56,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:46:56,426 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:46:56,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:46:56" (1/1) ... [2018-10-27 05:46:56,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:46:56" (1/1) ... [2018-10-27 05:46:56,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:46:56,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:46:56,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:46:56,443 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:46:56,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:46:56" (1/1) ... [2018-10-27 05:46:56,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:46:56" (1/1) ... [2018-10-27 05:46:56,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:46:56" (1/1) ... [2018-10-27 05:46:56,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:46:56" (1/1) ... [2018-10-27 05:46:56,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:46:56" (1/1) ... [2018-10-27 05:46:56,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:46:56" (1/1) ... [2018-10-27 05:46:56,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:46:56" (1/1) ... [2018-10-27 05:46:56,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:46:56,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:46:56,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:46:56,463 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:46:56,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:46:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea516fba-ed0d-4958-8d86-5b32b5fc1740/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:46:56,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:46:56,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:46:56,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:46:56,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:46:56,574 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:46:56,574 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:46:56,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-27 05:46:56,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-27 05:46:56,574 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2018-10-27 05:46:56,574 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2018-10-27 05:46:56,998 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:46:56,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:46:56 BoogieIcfgContainer [2018-10-27 05:46:56,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:46:56,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:46:56,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:46:57,003 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:46:57,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:46:56" (1/3) ... [2018-10-27 05:46:57,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d4e4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:46:57, skipping insertion in model container [2018-10-27 05:46:57,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:46:56" (2/3) ... [2018-10-27 05:46:57,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d4e4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:46:57, skipping insertion in model container [2018-10-27 05:46:57,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:46:56" (3/3) ... [2018-10-27 05:46:57,006 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3_true-unreach-call_true-no-overflow.i [2018-10-27 05:46:57,019 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:46:57,026 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-10-27 05:46:57,046 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-10-27 05:46:57,078 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:46:57,079 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:46:57,079 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:46:57,079 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:46:57,080 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:46:57,080 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:46:57,080 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:46:57,080 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:46:57,096 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-10-27 05:46:57,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-27 05:46:57,101 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:46:57,102 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:46:57,103 INFO L424 AbstractCegarLoop]: === Iteration 1 === [gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:46:57,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:46:57,108 INFO L82 PathProgramCache]: Analyzing trace with hash -2077107047, now seen corresponding path program 1 times [2018-10-27 05:46:57,110 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:46:57,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:46:57,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:46:57,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:46:57,152 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:46:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:46:57,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:46:57,351 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:46:57,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 05:46:57,351 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:46:57,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 05:46:57,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 05:46:57,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 05:46:57,366 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 5 states. [2018-10-27 05:46:57,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:46:57,483 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2018-10-27 05:46:57,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 05:46:57,484 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-10-27 05:46:57,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:46:57,491 INFO L225 Difference]: With dead ends: 56 [2018-10-27 05:46:57,491 INFO L226 Difference]: Without dead ends: 16 [2018-10-27 05:46:57,494 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 05:46:57,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-10-27 05:46:57,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-10-27 05:46:57,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-10-27 05:46:57,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-10-27 05:46:57,518 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2018-10-27 05:46:57,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:46:57,519 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-10-27 05:46:57,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 05:46:57,519 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-10-27 05:46:57,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:46:57,519 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:46:57,519 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:46:57,520 INFO L424 AbstractCegarLoop]: === Iteration 2 === [gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:46:57,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:46:57,521 INFO L82 PathProgramCache]: Analyzing trace with hash 34197068, now seen corresponding path program 1 times [2018-10-27 05:46:57,521 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:46:57,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:46:57,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:46:57,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:46:57,522 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:46:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:46:57,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:46:57,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:46:57,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 05:46:57,597 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:46:57,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 05:46:57,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 05:46:57,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 05:46:57,599 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 5 states. [2018-10-27 05:46:57,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:46:57,674 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-10-27 05:46:57,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 05:46:57,674 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-10-27 05:46:57,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:46:57,675 INFO L225 Difference]: With dead ends: 16 [2018-10-27 05:46:57,675 INFO L226 Difference]: Without dead ends: 15 [2018-10-27 05:46:57,675 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 05:46:57,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-10-27 05:46:57,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-10-27 05:46:57,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-10-27 05:46:57,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-10-27 05:46:57,677 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2018-10-27 05:46:57,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:46:57,678 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-10-27 05:46:57,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 05:46:57,678 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-10-27 05:46:57,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:46:57,678 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:46:57,678 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:46:57,679 INFO L424 AbstractCegarLoop]: === Iteration 3 === [gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:46:57,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:46:57,679 INFO L82 PathProgramCache]: Analyzing trace with hash 34191046, now seen corresponding path program 1 times [2018-10-27 05:46:57,679 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:46:57,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:46:57,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:46:57,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:46:57,680 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:46:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:46:57,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:46:57,706 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:46:57,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:46:57,706 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:46:57,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:46:57,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:46:57,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:46:57,707 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 3 states. [2018-10-27 05:46:57,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:46:57,757 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-10-27 05:46:57,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:46:57,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-10-27 05:46:57,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:46:57,758 INFO L225 Difference]: With dead ends: 15 [2018-10-27 05:46:57,758 INFO L226 Difference]: Without dead ends: 14 [2018-10-27 05:46:57,758 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:46:57,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-10-27 05:46:57,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-10-27 05:46:57,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-27 05:46:57,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-10-27 05:46:57,760 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2018-10-27 05:46:57,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:46:57,760 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-10-27 05:46:57,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:46:57,760 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-10-27 05:46:57,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:46:57,761 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:46:57,761 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:46:57,761 INFO L424 AbstractCegarLoop]: === Iteration 4 === [gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:46:57,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:46:57,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1060109181, now seen corresponding path program 1 times [2018-10-27 05:46:57,762 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:46:57,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:46:57,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:46:57,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:46:57,762 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:46:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:46:57,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:46:57,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:46:57,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:46:57,817 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:46:57,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:46:57,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:46:57,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:46:57,818 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 3 states. [2018-10-27 05:46:57,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:46:57,832 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-10-27 05:46:57,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:46:57,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-27 05:46:57,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:46:57,833 INFO L225 Difference]: With dead ends: 14 [2018-10-27 05:46:57,833 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 05:46:57,833 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:46:57,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 05:46:57,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 05:46:57,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 05:46:57,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 05:46:57,834 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-10-27 05:46:57,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:46:57,834 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 05:46:57,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:46:57,834 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 05:46:57,835 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 05:46:57,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 05:46:57,871 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-27 05:46:57,872 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:46:57,872 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:46:57,872 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 05:46:57,872 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 05:46:57,872 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 05:46:57,872 INFO L425 ceAbstractionStarter]: For program point L34-1(lines 34 36) no Hoare annotation was computed. [2018-10-27 05:46:57,872 INFO L421 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: (and (<= 0 (+ main_~x~0 128)) (<= 0 (+ main_~y~0 128))) [2018-10-27 05:46:57,872 INFO L425 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2018-10-27 05:46:57,872 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 26 39) the Hoare annotation is: true [2018-10-27 05:46:57,873 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 26 39) no Hoare annotation was computed. [2018-10-27 05:46:57,873 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 26 39) no Hoare annotation was computed. [2018-10-27 05:46:57,873 INFO L421 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (<= 0 (+ main_~x~0 128)) [2018-10-27 05:46:57,873 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 36) no Hoare annotation was computed. [2018-10-27 05:46:57,873 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-10-27 05:46:57,873 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-10-27 05:46:57,873 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-10-27 05:46:57,873 INFO L425 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-10-27 05:46:57,873 INFO L425 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-10-27 05:46:57,873 INFO L425 ceAbstractionStarter]: For program point gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-10-27 05:46:57,874 INFO L425 ceAbstractionStarter]: For program point gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-10-27 05:46:57,874 INFO L425 ceAbstractionStarter]: For program point gcd_testEXIT(lines 10 23) no Hoare annotation was computed. [2018-10-27 05:46:57,874 INFO L425 ceAbstractionStarter]: For program point L17(lines 17 21) no Hoare annotation was computed. [2018-10-27 05:46:57,874 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-10-27 05:46:57,874 INFO L425 ceAbstractionStarter]: For program point L17-2(lines 11 23) no Hoare annotation was computed. [2018-10-27 05:46:57,874 INFO L425 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-10-27 05:46:57,874 INFO L425 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2018-10-27 05:46:57,874 INFO L428 ceAbstractionStarter]: At program point gcd_testENTRY(lines 10 23) the Hoare annotation is: true [2018-10-27 05:46:57,874 INFO L425 ceAbstractionStarter]: For program point gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-10-27 05:46:57,875 INFO L425 ceAbstractionStarter]: For program point gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-10-27 05:46:57,875 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-10-27 05:46:57,875 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-10-27 05:46:57,875 INFO L425 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2018-10-27 05:46:57,875 INFO L425 ceAbstractionStarter]: For program point L14-4(lines 11 23) no Hoare annotation was computed. [2018-10-27 05:46:57,875 INFO L425 ceAbstractionStarter]: For program point gcd_testFINAL(lines 10 23) no Hoare annotation was computed. [2018-10-27 05:46:57,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:46:57 BoogieIcfgContainer [2018-10-27 05:46:57,878 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 05:46:57,878 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:46:57,878 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:46:57,878 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:46:57,879 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:46:56" (3/4) ... [2018-10-27 05:46:57,882 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 05:46:57,887 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 05:46:57,888 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 05:46:57,888 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-27 05:46:57,888 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure gcd_test [2018-10-27 05:46:57,891 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-10-27 05:46:57,892 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 05:46:57,892 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 05:46:57,928 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ea516fba-ed0d-4958-8d86-5b32b5fc1740/bin-2019/utaipan/witness.graphml [2018-10-27 05:46:57,929 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:46:57,929 INFO L168 Benchmark]: Toolchain (without parser) took 1680.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 954.5 MB in the beginning and 1.1 GB in the end (delta: -138.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. [2018-10-27 05:46:57,931 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:46:57,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.11 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:46:57,931 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.17 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:46:57,931 INFO L168 Benchmark]: Boogie Preprocessor took 19.15 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:46:57,932 INFO L168 Benchmark]: RCFGBuilder took 536.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -210.7 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2018-10-27 05:46:57,932 INFO L168 Benchmark]: TraceAbstraction took 878.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 55.6 MB). Peak memory consumption was 55.6 MB. Max. memory is 11.5 GB. [2018-10-27 05:46:57,933 INFO L168 Benchmark]: Witness Printer took 50.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-10-27 05:46:57,935 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.11 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.17 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.15 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 536.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -210.7 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 878.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 55.6 MB). Peak memory consumption was 55.6 MB. Max. memory is 11.5 GB. * Witness Printer took 50.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: 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: 14]: 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 35 locations, 4 error locations. SAFE Result, 0.8s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 61 SDtfs, 53 SDslu, 97 SDs, 0 SdLazy, 42 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 9 PreInvPairs, 10 NumberOfFragments, 22 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 786 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...