./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/phases_true-unreach-call2_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-acceleration/phases_true-unreach-call2_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a156731963582ce9a466285688eba3a68b58029 ........................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 08:24:57,893 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 08:24:57,894 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 08:24:57,900 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 08:24:57,900 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 08:24:57,901 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 08:24:57,902 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 08:24:57,903 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 08:24:57,904 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 08:24:57,905 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 08:24:57,906 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 08:24:57,906 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 08:24:57,906 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 08:24:57,907 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 08:24:57,908 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 08:24:57,908 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 08:24:57,909 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 08:24:57,910 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 08:24:57,911 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 08:24:57,912 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 08:24:57,913 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 08:24:57,914 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 08:24:57,916 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 08:24:57,916 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 08:24:57,916 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 08:24:57,917 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 08:24:57,917 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 08:24:57,918 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 08:24:57,919 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 08:24:57,919 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 08:24:57,919 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 08:24:57,920 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 08:24:57,920 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 08:24:57,920 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 08:24:57,921 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 08:24:57,921 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 08:24:57,922 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 08:24:57,932 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 08:24:57,932 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 08:24:57,933 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 08:24:57,933 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 08:24:57,933 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 08:24:57,933 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 08:24:57,933 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 08:24:57,934 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 08:24:57,934 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 08:24:57,934 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 08:24:57,934 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 08:24:57,934 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 08:24:57,934 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 08:24:57,935 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 08:24:57,935 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 08:24:57,935 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 08:24:57,935 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 08:24:57,936 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 08:24:57,936 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 08:24:57,936 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 08:24:57,936 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 08:24:57,936 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 08:24:57,936 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 08:24:57,936 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 08:24:57,937 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 08:24:57,937 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 08:24:57,937 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 08:24:57,937 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 08:24:57,937 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 08:24:57,937 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 08:24:57,938 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 08:24:57,938 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 08:24:57,938 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 08:24:57,938 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 08:24:57,938 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 08:24:57,938 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 08:24:57,938 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 08:24:57,939 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_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/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 ! call(__VERIFIER_error())) ) 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 -> 4a156731963582ce9a466285688eba3a68b58029 [2018-11-23 08:24:57,963 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 08:24:57,972 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 08:24:57,975 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 08:24:57,976 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 08:24:57,976 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 08:24:57,977 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/bin-2019/utaipan/../../sv-benchmarks/c/loop-acceleration/phases_true-unreach-call2_false-termination.i [2018-11-23 08:24:58,021 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/bin-2019/utaipan/data/e132c455f/3c22eaf6d9d34e8893a17a9a906c6c8d/FLAGfef2d6e13 [2018-11-23 08:24:58,410 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 08:24:58,410 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/sv-benchmarks/c/loop-acceleration/phases_true-unreach-call2_false-termination.i [2018-11-23 08:24:58,414 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/bin-2019/utaipan/data/e132c455f/3c22eaf6d9d34e8893a17a9a906c6c8d/FLAGfef2d6e13 [2018-11-23 08:24:58,421 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/bin-2019/utaipan/data/e132c455f/3c22eaf6d9d34e8893a17a9a906c6c8d [2018-11-23 08:24:58,423 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 08:24:58,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 08:24:58,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 08:24:58,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 08:24:58,428 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 08:24:58,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:24:58" (1/1) ... [2018-11-23 08:24:58,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd21f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:58, skipping insertion in model container [2018-11-23 08:24:58,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:24:58" (1/1) ... [2018-11-23 08:24:58,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 08:24:58,454 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 08:24:58,576 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:24:58,578 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 08:24:58,588 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:24:58,599 INFO L195 MainTranslator]: Completed translation [2018-11-23 08:24:58,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:58 WrapperNode [2018-11-23 08:24:58,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 08:24:58,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 08:24:58,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 08:24:58,600 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 08:24:58,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:58" (1/1) ... [2018-11-23 08:24:58,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:58" (1/1) ... [2018-11-23 08:24:58,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 08:24:58,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 08:24:58,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 08:24:58,617 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 08:24:58,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:58" (1/1) ... [2018-11-23 08:24:58,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:58" (1/1) ... [2018-11-23 08:24:58,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:58" (1/1) ... [2018-11-23 08:24:58,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:58" (1/1) ... [2018-11-23 08:24:58,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:58" (1/1) ... [2018-11-23 08:24:58,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:58" (1/1) ... [2018-11-23 08:24:58,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:58" (1/1) ... [2018-11-23 08:24:58,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 08:24:58,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 08:24:58,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 08:24:58,635 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 08:24:58,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/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 [2018-11-23 08:24:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 08:24:58,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 08:24:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 08:24:58,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 08:24:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 08:24:58,724 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 08:24:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 08:24:58,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 08:24:58,824 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 08:24:58,824 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 08:24:58,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:58 BoogieIcfgContainer [2018-11-23 08:24:58,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 08:24:58,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 08:24:58,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 08:24:58,827 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 08:24:58,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:24:58" (1/3) ... [2018-11-23 08:24:58,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d377cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:24:58, skipping insertion in model container [2018-11-23 08:24:58,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:58" (2/3) ... [2018-11-23 08:24:58,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d377cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:24:58, skipping insertion in model container [2018-11-23 08:24:58,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:58" (3/3) ... [2018-11-23 08:24:58,829 INFO L112 eAbstractionObserver]: Analyzing ICFG phases_true-unreach-call2_false-termination.i [2018-11-23 08:24:58,835 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 08:24:58,839 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 08:24:58,848 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 08:24:58,867 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 08:24:58,867 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 08:24:58,867 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 08:24:58,867 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 08:24:58,868 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 08:24:58,868 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 08:24:58,868 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 08:24:58,868 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 08:24:58,879 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-23 08:24:58,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 08:24:58,882 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:24:58,883 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:24:58,885 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:24:58,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:24:58,888 INFO L82 PathProgramCache]: Analyzing trace with hash -133618162, now seen corresponding path program 1 times [2018-11-23 08:24:58,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:24:58,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:24:58,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:24:58,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:24:58,918 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:24:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:24:58,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:24:58,957 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:24:58,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 08:24:58,957 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:24:58,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 08:24:58,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 08:24:58,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 08:24:58,969 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2018-11-23 08:24:58,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:24:58,982 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2018-11-23 08:24:58,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 08:24:58,983 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-23 08:24:58,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:24:58,988 INFO L225 Difference]: With dead ends: 30 [2018-11-23 08:24:58,988 INFO L226 Difference]: Without dead ends: 13 [2018-11-23 08:24:58,990 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 08:24:59,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-11-23 08:24:59,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-23 08:24:59,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-23 08:24:59,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-11-23 08:24:59,012 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11 [2018-11-23 08:24:59,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:24:59,013 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-11-23 08:24:59,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 08:24:59,013 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-11-23 08:24:59,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 08:24:59,013 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:24:59,014 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:24:59,014 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:24:59,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:24:59,014 INFO L82 PathProgramCache]: Analyzing trace with hash -142853372, now seen corresponding path program 1 times [2018-11-23 08:24:59,014 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:24:59,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:24:59,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:24:59,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:24:59,015 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:24:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:24:59,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:24:59,241 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:24:59,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 08:24:59,242 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:24:59,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 08:24:59,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 08:24:59,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-23 08:24:59,244 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 7 states. [2018-11-23 08:25:01,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:25:01,298 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-23 08:25:01,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 08:25:01,299 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-11-23 08:25:01,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:25:01,301 INFO L225 Difference]: With dead ends: 20 [2018-11-23 08:25:01,301 INFO L226 Difference]: Without dead ends: 15 [2018-11-23 08:25:01,302 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-23 08:25:01,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-23 08:25:01,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2018-11-23 08:25:01,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-23 08:25:01,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-11-23 08:25:01,306 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2018-11-23 08:25:01,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:25:01,306 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-11-23 08:25:01,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 08:25:01,306 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-11-23 08:25:01,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 08:25:01,307 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:25:01,307 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:25:01,308 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:25:01,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:25:01,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1232195137, now seen corresponding path program 1 times [2018-11-23 08:25:01,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:25:01,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:25:01,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:25:01,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:25:01,310 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:25:01,315 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-23 08:25:01,315 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-23 08:25:01,315 INFO L169 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-23 08:25:01,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:25:01,323 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-23 08:25:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:25:01,340 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-11-23 08:25:01,341 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [15], [17], [20], [29], [32], [34], [40], [41], [42], [44] [2018-11-23 08:25:01,360 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 08:25:01,361 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 08:25:01,443 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 08:25:01,443 INFO L272 AbstractInterpreter]: Visited 13 different actions 13 times. Never merged. Never widened. Performed 20 root evaluator evaluations with a maximum evaluation depth of 9. Performed 20 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Found 1 fixpoints after 1 different actions. Largest state had 3 variables. [2018-11-23 08:25:01,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:25:01,448 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 08:25:01,448 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 08:25:01,448 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 08:25:01,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:25:01,462 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 08:25:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:25:01,476 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:25:01,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:25:01,503 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 08:25:02,229 WARN L854 $PredicateComparison]: unable to prove that (forall ((main_~y~0 Int)) (let ((.cse0 (mod main_~y~0 4294967296))) (or (< (mod (* c_main_~x~0 c_main_~x~0) 4294967296) .cse0) (<= .cse0 (mod c_main_~x~0 4294967296))))) is different from true [2018-11-23 08:25:02,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2018-11-23 08:25:02,250 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 08:25:02,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2018-11-23 08:25:02,250 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:25:02,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 08:25:02,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 08:25:02,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=19, Unknown=1, NotChecked=8, Total=42 [2018-11-23 08:25:02,251 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 4 states. [2018-11-23 08:25:02,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:25:02,260 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2018-11-23 08:25:02,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 08:25:02,260 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-11-23 08:25:02,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:25:02,261 INFO L225 Difference]: With dead ends: 16 [2018-11-23 08:25:02,261 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 08:25:02,261 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=14, Invalid=19, Unknown=1, NotChecked=8, Total=42 [2018-11-23 08:25:02,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 08:25:02,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 08:25:02,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 08:25:02,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 08:25:02,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-23 08:25:02,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:25:02,262 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:25:02,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 08:25:02,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 08:25:02,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 08:25:02,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 08:25:02,294 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 08:25:02,294 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 08:25:02,294 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 08:25:02,294 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 08:25:02,294 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 08:25:02,294 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 08:25:02,294 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 22) the Hoare annotation is: true [2018-11-23 08:25:02,294 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 22) no Hoare annotation was computed. [2018-11-23 08:25:02,294 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2018-11-23 08:25:02,294 INFO L448 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-11-23 08:25:02,294 INFO L444 ceAbstractionStarter]: At program point L15-2(lines 14 20) the Hoare annotation is: (and (= main_~x~0 1) (<= (+ (* 4294967296 (div main_~y~0 4294967296)) main_~x~0) (+ main_~y~0 (* 4294967296 (div main_~x~0 4294967296))))) [2018-11-23 08:25:02,294 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 22) no Hoare annotation was computed. [2018-11-23 08:25:02,294 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 20) the Hoare annotation is: (let ((.cse2 (div main_~x~0 4294967296))) (let ((.cse1 (+ main_~y~0 (* 4294967296 .cse2))) (.cse0 (+ (* 4294967296 (div main_~y~0 4294967296)) main_~x~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (< 0 (+ .cse2 1))))) [2018-11-23 08:25:02,295 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-11-23 08:25:02,295 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-11-23 08:25:02,295 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-11-23 08:25:02,295 INFO L448 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-11-23 08:25:02,295 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-11-23 08:25:02,295 INFO L448 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-11-23 08:25:02,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:25:02 BoogieIcfgContainer [2018-11-23 08:25:02,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 08:25:02,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 08:25:02,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 08:25:02,303 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 08:25:02,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:58" (3/4) ... [2018-11-23 08:25:02,305 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 08:25:02,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 08:25:02,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 08:25:02,309 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 08:25:02,311 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-23 08:25:02,311 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 08:25:02,311 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 08:25:02,336 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6a27ccc6-17d1-423b-8b87-e37d3d8ecf39/bin-2019/utaipan/witness.graphml [2018-11-23 08:25:02,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 08:25:02,337 INFO L168 Benchmark]: Toolchain (without parser) took 3913.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 953.8 MB in the beginning and 1.0 GB in the end (delta: -93.8 MB). Peak memory consumption was 55.1 MB. Max. memory is 11.5 GB. [2018-11-23 08:25:02,338 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:25:02,338 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.98 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:25:02,339 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.99 ms. Allocated memory is still 1.0 GB. Free memory is still 943.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:25:02,339 INFO L168 Benchmark]: Boogie Preprocessor took 17.07 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:25:02,340 INFO L168 Benchmark]: RCFGBuilder took 189.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -191.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 08:25:02,340 INFO L168 Benchmark]: TraceAbstraction took 3477.59 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: 80.8 MB). Peak memory consumption was 80.8 MB. Max. memory is 11.5 GB. [2018-11-23 08:25:02,341 INFO L168 Benchmark]: Witness Printer took 34.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 08:25:02,343 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 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.98 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 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 16.99 ms. Allocated memory is still 1.0 GB. Free memory is still 943.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.07 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 189.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -191.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3477.59 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: 80.8 MB). Peak memory consumption was 80.8 MB. Max. memory is 11.5 GB. * Witness Printer took 34.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 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: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x == 1 && 4294967296 * (y / 4294967296) + x <= y + 4294967296 * (x / 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 7 SDslu, 25 SDs, 0 SdLazy, 32 SolverSat, 2 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 12 NumberOfFragments, 62 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 2 QuantifiedInterpolants, 2242 SizeOfPredicates, 1 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...