./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/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 08947af3b6f9b8a272faa540a059213a9b1de888 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/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 08947af3b6f9b8a272faa540a059213a9b1de888 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 09:56:31,256 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 09:56:31,258 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 09:56:31,265 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 09:56:31,265 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 09:56:31,266 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 09:56:31,266 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 09:56:31,268 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 09:56:31,269 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 09:56:31,269 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 09:56:31,270 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 09:56:31,270 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 09:56:31,271 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 09:56:31,272 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 09:56:31,272 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 09:56:31,273 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 09:56:31,274 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 09:56:31,275 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 09:56:31,276 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 09:56:31,277 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 09:56:31,278 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 09:56:31,279 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 09:56:31,280 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 09:56:31,280 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 09:56:31,281 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 09:56:31,281 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 09:56:31,282 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 09:56:31,282 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 09:56:31,283 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 09:56:31,284 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 09:56:31,284 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 09:56:31,284 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 09:56:31,284 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 09:56:31,285 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 09:56:31,285 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 09:56:31,286 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 09:56:31,286 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 09:56:31,296 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 09:56:31,296 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 09:56:31,297 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 09:56:31,297 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 09:56:31,297 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 09:56:31,297 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 09:56:31,297 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 09:56:31,298 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 09:56:31,298 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 09:56:31,298 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 09:56:31,298 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 09:56:31,298 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 09:56:31,299 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 09:56:31,299 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 09:56:31,299 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 09:56:31,299 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 09:56:31,299 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 09:56:31,299 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 09:56:31,299 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 09:56:31,300 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 09:56:31,300 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 09:56:31,300 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 09:56:31,300 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 09:56:31,300 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 09:56:31,300 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 09:56:31,300 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 09:56:31,301 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 09:56:31,301 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 09:56:31,301 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 09:56:31,301 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 09:56:31,301 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 09:56:31,301 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 09:56:31,301 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 09:56:31,302 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 09:56:31,302 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_74d4221b-39bd-4ec1-bbc3-989fece649cb/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 -> 08947af3b6f9b8a272faa540a059213a9b1de888 [2018-11-10 09:56:31,325 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 09:56:31,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 09:56:31,337 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 09:56:31,338 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 09:56:31,338 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 09:56:31,338 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-11-10 09:56:31,378 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/data/36f47ecb7/cb1bcbc1baf64b59a8c42187d76cd43b/FLAG8692a8594 [2018-11-10 09:56:31,730 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 09:56:31,730 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-11-10 09:56:31,736 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/data/36f47ecb7/cb1bcbc1baf64b59a8c42187d76cd43b/FLAG8692a8594 [2018-11-10 09:56:31,744 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/data/36f47ecb7/cb1bcbc1baf64b59a8c42187d76cd43b [2018-11-10 09:56:31,746 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 09:56:31,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 09:56:31,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 09:56:31,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 09:56:31,750 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 09:56:31,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:56:31" (1/1) ... [2018-11-10 09:56:31,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56045772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:31, skipping insertion in model container [2018-11-10 09:56:31,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:56:31" (1/1) ... [2018-11-10 09:56:31,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 09:56:31,776 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 09:56:31,889 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:56:31,891 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 09:56:31,914 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:56:31,929 INFO L193 MainTranslator]: Completed translation [2018-11-10 09:56:31,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:31 WrapperNode [2018-11-10 09:56:31,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 09:56:31,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 09:56:31,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 09:56:31,930 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 09:56:31,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:31" (1/1) ... [2018-11-10 09:56:31,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:31" (1/1) ... [2018-11-10 09:56:31,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 09:56:31,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 09:56:31,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 09:56:31,966 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 09:56:31,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:31" (1/1) ... [2018-11-10 09:56:31,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:31" (1/1) ... [2018-11-10 09:56:31,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:31" (1/1) ... [2018-11-10 09:56:31,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:31" (1/1) ... [2018-11-10 09:56:31,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:31" (1/1) ... [2018-11-10 09:56:31,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:31" (1/1) ... [2018-11-10 09:56:31,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:31" (1/1) ... [2018-11-10 09:56:31,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 09:56:31,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 09:56:31,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 09:56:31,997 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 09:56:31,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 09:56:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure testOne [2018-11-10 09:56:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure testOne [2018-11-10 09:56:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2018-11-10 09:56:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2018-11-10 09:56:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure testThree [2018-11-10 09:56:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure testThree [2018-11-10 09:56:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 09:56:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 09:56:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure testTwo [2018-11-10 09:56:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure testTwo [2018-11-10 09:56:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 09:56:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 09:56:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2018-11-10 09:56:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2018-11-10 09:56:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 09:56:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 09:56:32,460 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 09:56:32,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:56:32 BoogieIcfgContainer [2018-11-10 09:56:32,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 09:56:32,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 09:56:32,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 09:56:32,464 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 09:56:32,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 09:56:31" (1/3) ... [2018-11-10 09:56:32,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fbc6a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:56:32, skipping insertion in model container [2018-11-10 09:56:32,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:31" (2/3) ... [2018-11-10 09:56:32,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fbc6a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:56:32, skipping insertion in model container [2018-11-10 09:56:32,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:56:32" (3/3) ... [2018-11-10 09:56:32,466 INFO L112 eAbstractionObserver]: Analyzing ICFG float22_true-unreach-call_true-termination.i [2018-11-10 09:56:32,472 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 09:56:32,479 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-10 09:56:32,492 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-10 09:56:32,516 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 09:56:32,516 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 09:56:32,516 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 09:56:32,516 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 09:56:32,516 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 09:56:32,517 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 09:56:32,517 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 09:56:32,517 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 09:56:32,528 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-11-10 09:56:32,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 09:56:32,532 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:56:32,532 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:56:32,534 INFO L424 AbstractCegarLoop]: === Iteration 1 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:56:32,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:56:32,537 INFO L82 PathProgramCache]: Analyzing trace with hash -21800832, now seen corresponding path program 1 times [2018-11-10 09:56:32,539 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 09:56:32,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:56:32,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:56:32,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:56:32,575 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 09:56:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 09:56:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 09:56:32,757 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 09:56:32,770 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,770 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,771 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-10 09:56:32,771 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-11-10 09:56:32,771 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:56:32,772 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-10 09:56:32,772 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-11-10 09:56:32,772 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,772 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:56:32,773 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-10 09:56:32,773 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-11-10 09:56:32,773 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,773 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-10 09:56:32,774 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-11-10 09:56:32,774 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:56:32,774 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-10 09:56:32,774 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-11-10 09:56:32,775 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,775 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:56:32,775 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-10 09:56:32,775 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-11-10 09:56:32,776 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,776 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,776 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,777 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled [2018-11-10 09:56:32,777 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled [2018-11-10 09:56:32,777 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled [2018-11-10 09:56:32,777 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,778 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,778 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-10 09:56:32,778 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-11-10 09:56:32,779 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:56:32,779 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-10 09:56:32,779 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-11-10 09:56:32,779 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,780 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:56:32,780 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-10 09:56:32,780 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-11-10 09:56:32,780 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,781 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-10 09:56:32,781 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-11-10 09:56:32,781 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:56:32,781 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-10 09:56:32,781 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-11-10 09:56:32,782 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,782 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:56:32,783 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-10 09:56:32,783 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-11-10 09:56:32,783 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,783 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,784 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,784 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled [2018-11-10 09:56:32,784 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled [2018-11-10 09:56:32,785 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled [2018-11-10 09:56:32,785 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,785 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,786 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,786 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,786 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,787 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:56:32,794 WARN L1239 BoogieBacktranslator]: unknown boogie variable #res.ieee.mantissa [2018-11-10 09:56:32,796 WARN L1239 BoogieBacktranslator]: unknown boogie variable #res.ieee.exponent [2018-11-10 09:56:32,796 WARN L1239 BoogieBacktranslator]: unknown boogie variable #res.ieee.negative [2018-11-10 09:56:32,796 WARN L1239 BoogieBacktranslator]: unknown boogie variable #res.ieee.mantissa [2018-11-10 09:56:32,797 WARN L1239 BoogieBacktranslator]: unknown boogie variable #res.ieee.exponent [2018-11-10 09:56:32,797 WARN L1239 BoogieBacktranslator]: unknown boogie variable #res.ieee.negative [2018-11-10 09:56:32,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 09:56:32 BoogieIcfgContainer [2018-11-10 09:56:32,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 09:56:32,805 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 09:56:32,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 09:56:32,805 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 09:56:32,805 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:56:32" (3/4) ... [2018-11-10 09:56:32,809 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 09:56:32,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 09:56:32,810 INFO L168 Benchmark]: Toolchain (without parser) took 1063.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -123.8 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2018-11-10 09:56:32,811 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 09:56:32,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.18 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 945.7 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-10 09:56:32,813 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.07 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 943.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 09:56:32,814 INFO L168 Benchmark]: Boogie Preprocessor took 31.25 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 09:56:32,814 INFO L168 Benchmark]: RCFGBuilder took 463.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-11-10 09:56:32,815 INFO L168 Benchmark]: TraceAbstraction took 343.27 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: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. [2018-11-10 09:56:32,815 INFO L168 Benchmark]: Witness Printer took 4.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 09:56:32,818 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 182.18 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 945.7 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.07 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 943.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.25 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 463.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 343.27 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: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.negative * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 133]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 119. Possible FailurePath: [L168] CALL testOne() [L128] CALL ieee754_float f1, f2; [L128] RET ieee754_float f1, f2; [L128] RET ieee754_float f1, f2; [L130] CALL, EXPR returnsStructure(0) [L117] CALL ieee754_float c; [L117] RET ieee754_float c; [L119] CALL c.ieee.negative = index & 0x1 [L119] RET c.ieee.negative = index & 0x1 [L120] CALL c.ieee.exponent = 0 [L120] RET c.ieee.exponent = 0 [L121] CALL c.ieee.mantissa = 0 [L121] RET c.ieee.mantissa = 0 [L123] CALL return c; [L123] RET return c; [L123] RET return c; [L123] RET return c; [L123] RET return c; [L123] RET return c; VAL [unknown-#res.ieee.exponent-unknown=0, unknown-#res.ieee.mantissa-unknown=0, unknown-#res.ieee.negative-unknown=0] [L130] EXPR returnsStructure(0) VAL [returnsStructure(0)=0returnsStructure(0)=0returnsStructure(0)=0] [L130] CALL f1 = returnsStructure(0) [L130] RET f1 = returnsStructure(0) [L130] RET f1 = returnsStructure(0) [L130] RET f1 = returnsStructure(0) [L130] RET f1 = returnsStructure(0) [L131] CALL, EXPR returnsStructure(1) [L117] CALL ieee754_float c; [L117] RET ieee754_float c; [L119] CALL c.ieee.negative = index & 0x1 [L119] RET c.ieee.negative = index & 0x1 [L120] CALL c.ieee.exponent = 0 [L120] RET c.ieee.exponent = 0 [L121] CALL c.ieee.mantissa = 0 [L121] RET c.ieee.mantissa = 0 [L123] CALL return c; [L123] RET return c; [L123] RET return c; [L123] RET return c; [L123] RET return c; [L123] RET return c; VAL [unknown-#res.ieee.exponent-unknown=0, unknown-#res.ieee.mantissa-unknown=0, unknown-#res.ieee.negative-unknown=0] [L131] EXPR returnsStructure(1) VAL [returnsStructure(1)=0returnsStructure(1)=0returnsStructure(1)=0] [L131] CALL f2 = returnsStructure(1) [L131] RET f2 = returnsStructure(1) [L131] RET f2 = returnsStructure(1) [L131] RET f2 = returnsStructure(1) [L131] RET f2 = returnsStructure(1) [L133] CALL, EXPR f1.ieee.negative [L133] RET, EXPR f1.ieee.negative [L133] CALL, EXPR f2.ieee.negative [L133] RET, EXPR f2.ieee.negative [L133] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L133] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 59 locations, 4 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 09:56:34,329 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 09:56:34,330 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 09:56:34,340 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 09:56:34,340 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 09:56:34,341 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 09:56:34,342 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 09:56:34,343 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 09:56:34,344 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 09:56:34,345 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 09:56:34,346 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 09:56:34,346 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 09:56:34,347 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 09:56:34,348 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 09:56:34,349 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 09:56:34,350 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 09:56:34,350 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 09:56:34,352 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 09:56:34,353 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 09:56:34,355 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 09:56:34,356 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 09:56:34,357 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 09:56:34,359 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 09:56:34,359 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 09:56:34,359 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 09:56:34,360 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 09:56:34,361 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 09:56:34,362 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 09:56:34,362 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 09:56:34,363 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 09:56:34,363 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 09:56:34,365 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 09:56:34,365 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 09:56:34,365 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 09:56:34,366 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 09:56:34,366 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 09:56:34,367 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 09:56:34,379 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 09:56:34,379 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 09:56:34,380 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 09:56:34,380 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 09:56:34,380 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 09:56:34,381 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 09:56:34,381 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 09:56:34,381 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 09:56:34,381 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 09:56:34,382 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 09:56:34,382 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 09:56:34,382 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 09:56:34,382 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 09:56:34,382 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 09:56:34,382 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 09:56:34,383 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 09:56:34,383 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 09:56:34,383 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 09:56:34,383 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 09:56:34,383 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 09:56:34,385 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 09:56:34,385 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 09:56:34,386 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 09:56:34,386 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 09:56:34,386 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 09:56:34,386 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 09:56:34,386 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 09:56:34,386 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 09:56:34,387 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 09:56:34,387 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 09:56:34,387 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 09:56:34,387 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 09:56:34,387 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_74d4221b-39bd-4ec1-bbc3-989fece649cb/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 -> 08947af3b6f9b8a272faa540a059213a9b1de888 [2018-11-10 09:56:34,422 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 09:56:34,432 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 09:56:34,435 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 09:56:34,437 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 09:56:34,437 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 09:56:34,438 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-11-10 09:56:34,491 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/data/910acf718/042919b8549a4c9686a52036034cfee7/FLAGe043fea21 [2018-11-10 09:56:34,830 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 09:56:34,831 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-11-10 09:56:34,835 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/data/910acf718/042919b8549a4c9686a52036034cfee7/FLAGe043fea21 [2018-11-10 09:56:34,844 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/data/910acf718/042919b8549a4c9686a52036034cfee7 [2018-11-10 09:56:34,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 09:56:34,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 09:56:34,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 09:56:34,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 09:56:34,851 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 09:56:34,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:56:34" (1/1) ... [2018-11-10 09:56:34,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e11607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:34, skipping insertion in model container [2018-11-10 09:56:34,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:56:34" (1/1) ... [2018-11-10 09:56:34,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 09:56:34,877 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 09:56:35,007 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:56:35,011 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 09:56:35,048 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:56:35,071 INFO L193 MainTranslator]: Completed translation [2018-11-10 09:56:35,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:35 WrapperNode [2018-11-10 09:56:35,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 09:56:35,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 09:56:35,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 09:56:35,073 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 09:56:35,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:35" (1/1) ... [2018-11-10 09:56:35,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:35" (1/1) ... [2018-11-10 09:56:35,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 09:56:35,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 09:56:35,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 09:56:35,123 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 09:56:35,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:35" (1/1) ... [2018-11-10 09:56:35,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:35" (1/1) ... [2018-11-10 09:56:35,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:35" (1/1) ... [2018-11-10 09:56:35,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:35" (1/1) ... [2018-11-10 09:56:35,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:35" (1/1) ... [2018-11-10 09:56:35,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:35" (1/1) ... [2018-11-10 09:56:35,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:35" (1/1) ... [2018-11-10 09:56:35,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 09:56:35,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 09:56:35,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 09:56:35,172 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 09:56:35,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 09:56:35,276 INFO L130 BoogieDeclarations]: Found specification of procedure testOne [2018-11-10 09:56:35,276 INFO L138 BoogieDeclarations]: Found implementation of procedure testOne [2018-11-10 09:56:35,276 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2018-11-10 09:56:35,276 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2018-11-10 09:56:35,276 INFO L130 BoogieDeclarations]: Found specification of procedure testThree [2018-11-10 09:56:35,276 INFO L138 BoogieDeclarations]: Found implementation of procedure testThree [2018-11-10 09:56:35,276 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 09:56:35,276 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 09:56:35,276 INFO L130 BoogieDeclarations]: Found specification of procedure testTwo [2018-11-10 09:56:35,277 INFO L138 BoogieDeclarations]: Found implementation of procedure testTwo [2018-11-10 09:56:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 09:56:35,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 09:56:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2018-11-10 09:56:35,277 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2018-11-10 09:56:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 09:56:35,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 09:56:35,432 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 09:56:35,459 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 09:56:35,524 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 09:56:35,530 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 09:56:35,610 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 09:56:35,630 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 09:56:35,640 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 09:56:35,646 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 09:56:35,651 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 09:56:35,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:56:35 BoogieIcfgContainer [2018-11-10 09:56:35,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 09:56:35,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 09:56:35,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 09:56:35,654 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 09:56:35,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 09:56:34" (1/3) ... [2018-11-10 09:56:35,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d56c686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:56:35, skipping insertion in model container [2018-11-10 09:56:35,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:56:35" (2/3) ... [2018-11-10 09:56:35,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d56c686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:56:35, skipping insertion in model container [2018-11-10 09:56:35,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:56:35" (3/3) ... [2018-11-10 09:56:35,656 INFO L112 eAbstractionObserver]: Analyzing ICFG float22_true-unreach-call_true-termination.i [2018-11-10 09:56:35,662 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 09:56:35,667 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-10 09:56:35,679 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-10 09:56:35,700 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 09:56:35,700 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 09:56:35,700 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 09:56:35,700 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 09:56:35,700 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 09:56:35,701 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 09:56:35,701 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 09:56:35,701 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 09:56:35,701 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 09:56:35,716 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-11-10 09:56:35,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 09:56:35,722 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:56:35,722 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:56:35,725 INFO L424 AbstractCegarLoop]: === Iteration 1 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:56:35,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:56:35,730 INFO L82 PathProgramCache]: Analyzing trace with hash -21800832, now seen corresponding path program 1 times [2018-11-10 09:56:35,733 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 09:56:35,734 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 09:56:35,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:56:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:56:35,917 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:56:35,974 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:35,979 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-10 09:56:35,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-10 09:56:35,985 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:35,992 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:35,999 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,000 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-11-10 09:56:36,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2018-11-10 09:56:36,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2018-11-10 09:56:36,038 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2018-11-10 09:56:36,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2018-11-10 09:56:36,058 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,061 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,064 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,066 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,074 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:56:36,075 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:72, output treesize:33 [2018-11-10 09:56:36,099 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:36,100 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:36,101 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:36,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2018-11-10 09:56:36,103 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,125 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:56:36,125 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:34, output treesize:29 [2018-11-10 09:56:36,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 09:56:36,164 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 09:56:36,165 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,168 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,186 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:56:36,187 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:46, output treesize:47 [2018-11-10 09:56:36,247 WARN L854 $PredicateComparison]: unable to prove that (exists ((|returnsStructure_write~intINTTYPE4_#value| (_ BitVec 32)) (|returnsStructure_write~intINTTYPE4_#ptr.base| (_ BitVec 32))) (and (= |c_returnsStructure_#res.f| (let ((.cse0 (select (select |c_#memory_int| |returnsStructure_write~intINTTYPE4_#ptr.base|) (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (= (select |c_old(#valid)| |returnsStructure_write~intINTTYPE4_#ptr.base|) (_ bv0 1)) (= (store |c_old(#memory_int)| |returnsStructure_write~intINTTYPE4_#ptr.base| (store (store (store (select |c_old(#memory_int)| |returnsStructure_write~intINTTYPE4_#ptr.base|) (_ bv0 32) (bvand (bvand |c_returnsStructure_#in~index| (_ bv1 32)) (_ bv1 32))) (_ bv4 32) (_ bv0 32)) (_ bv8 32) |returnsStructure_write~intINTTYPE4_#value|)) |c_#memory_int|))) is different from true [2018-11-10 09:56:36,261 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:36,264 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:36,267 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 09:56:36,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2018-11-10 09:56:36,269 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2018-11-10 09:56:36,348 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-11-10 09:56:36,357 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:36,358 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 25 [2018-11-10 09:56:36,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2018-11-10 09:56:36,372 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,388 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,402 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,422 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,464 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:56:36,465 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:90, output treesize:72 [2018-11-10 09:56:36,568 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 61 [2018-11-10 09:56:36,573 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-10 09:56:36,573 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,590 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:36,592 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 12 [2018-11-10 09:56:36,592 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,599 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,611 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:36,611 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 10 variables, input treesize:106, output treesize:25 [2018-11-10 09:56:36,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-11-10 09:56:36,637 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 09:56:36,847 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-11-10 09:56:36,992 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-11-10 09:56:37,152 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-11-10 09:56:37,285 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-11-10 09:56:42,677 WARN L179 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 50 [2018-11-10 09:56:42,689 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 09:56:42,689 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/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 [2018-11-10 09:56:42,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:56:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:56:42,749 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:56:42,762 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:42,762 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-10 09:56:42,766 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-10 09:56:42,767 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:42,783 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:42,791 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:42,791 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:18 [2018-11-10 09:56:42,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2018-11-10 09:56:42,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2018-11-10 09:56:42,851 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2018-11-10 09:56:42,866 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2018-11-10 09:56:42,867 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:42,874 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:42,877 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:42,880 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:42,888 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:56:42,888 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:72, output treesize:33 [2018-11-10 09:56:42,896 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:42,897 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:42,898 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:42,899 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-10 09:56:42,900 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:42,919 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:56:42,920 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:30 [2018-11-10 09:56:42,987 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 09:56:42,992 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 09:56:42,993 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:42,997 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:43,022 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:56:43,022 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:49, output treesize:50 [2018-11-10 09:56:43,098 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:43,100 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:43,105 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 09:56:43,106 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2018-11-10 09:56:43,107 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:43,168 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:43,172 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 58 [2018-11-10 09:56:43,181 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29 [2018-11-10 09:56:43,192 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:43,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-10 09:56:43,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-11-10 09:56:43,206 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:43,220 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:43,232 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:43,249 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:43,281 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:56:43,282 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:93, output treesize:71 [2018-11-10 09:56:43,399 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:43,401 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:43,402 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 65 [2018-11-10 09:56:43,413 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:43,426 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 35 [2018-11-10 09:56:43,428 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-10 09:56:43,455 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-10 09:56:43,455 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:43,469 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:43,486 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:43,486 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:100, output treesize:25 [2018-11-10 09:56:43,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-11-10 09:56:43,491 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 09:56:43,683 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2018-11-10 09:56:43,909 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-11-10 09:56:44,032 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-11-10 09:56:56,436 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 09:56:56,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2018-11-10 09:56:56,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-10 09:56:56,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-10 09:56:56,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=249, Unknown=7, NotChecked=32, Total=342 [2018-11-10 09:56:56,451 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 15 states. [2018-11-10 09:56:57,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:56:57,524 INFO L93 Difference]: Finished difference Result 104 states and 121 transitions. [2018-11-10 09:56:57,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 09:56:57,526 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 19 [2018-11-10 09:56:57,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:56:57,533 INFO L225 Difference]: With dead ends: 104 [2018-11-10 09:56:57,533 INFO L226 Difference]: Without dead ends: 49 [2018-11-10 09:56:57,536 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=79, Invalid=337, Unknown=8, NotChecked=38, Total=462 [2018-11-10 09:56:57,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-10 09:56:57,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-11-10 09:56:57,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-10 09:56:57,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-11-10 09:56:57,569 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 19 [2018-11-10 09:56:57,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:56:57,571 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-11-10 09:56:57,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-10 09:56:57,571 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-11-10 09:56:57,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 09:56:57,572 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:56:57,573 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:56:57,573 INFO L424 AbstractCegarLoop]: === Iteration 2 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:56:57,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:56:57,573 INFO L82 PathProgramCache]: Analyzing trace with hash -632269727, now seen corresponding path program 1 times [2018-11-10 09:56:57,574 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 09:56:57,574 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 09:56:57,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:56:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:56:57,892 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:56:57,914 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:57,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-10 09:56:57,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-10 09:56:57,917 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:57,921 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:57,929 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:57,929 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-11-10 09:56:57,945 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2018-11-10 09:56:57,947 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2018-11-10 09:56:57,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2018-11-10 09:56:57,976 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2018-11-10 09:56:57,976 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:57,979 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:57,981 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:57,983 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:57,990 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:56:57,991 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:72, output treesize:33 [2018-11-10 09:56:58,012 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:58,013 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:58,015 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:58,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2018-11-10 09:56:58,016 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:58,034 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:56:58,034 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:34, output treesize:28 [2018-11-10 09:56:58,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 09:56:58,065 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 09:56:58,065 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:58,068 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:58,090 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:56:58,090 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:44 [2018-11-10 09:56:58,160 WARN L854 $PredicateComparison]: unable to prove that (exists ((|returnsStructure_write~intINTTYPE4_#value| (_ BitVec 32)) (|returnsStructure_write~intINTTYPE4_#ptr.base| (_ BitVec 32))) (and (= |c_returnsStructure_#res.f| (let ((.cse0 (select (select |c_#memory_int| |returnsStructure_write~intINTTYPE4_#ptr.base|) (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (= (select |c_old(#valid)| |returnsStructure_write~intINTTYPE4_#ptr.base|) (_ bv0 1)) (= (store |c_old(#memory_int)| |returnsStructure_write~intINTTYPE4_#ptr.base| (store (store (store (select |c_old(#memory_int)| |returnsStructure_write~intINTTYPE4_#ptr.base|) (_ bv0 32) (bvand (bvand |c_returnsStructure_#in~index| (_ bv1 32)) (_ bv1 32))) (_ bv4 32) (_ bv0 32)) (_ bv8 32) |returnsStructure_write~intINTTYPE4_#value|)) |c_#memory_int|))) is different from true [2018-11-10 09:56:58,175 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:58,178 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:58,180 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:58,184 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:58,191 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:58,192 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2018-11-10 09:56:58,193 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:58,296 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2018-11-10 09:56:58,302 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-11-10 09:56:58,310 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:58,311 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 25 [2018-11-10 09:56:58,322 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2018-11-10 09:56:58,323 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:58,341 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:58,356 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:58,382 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:58,435 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:56:58,435 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:87, output treesize:72 [2018-11-10 09:56:58,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 61 [2018-11-10 09:56:58,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-10 09:56:58,563 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:58,585 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:56:58,586 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 12 [2018-11-10 09:56:58,586 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 09:56:58,594 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:58,608 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:56:58,608 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 10 variables, input treesize:104, output treesize:25 [2018-11-10 09:56:58,636 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 2 not checked. [2018-11-10 09:56:58,636 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 09:56:58,850 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-11-10 09:56:58,984 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-11-10 09:56:59,169 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-11-10 09:56:59,356 WARN L179 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-11-10 09:57:02,575 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 09:57:02,576 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 09:57:02,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:57:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:57:02,672 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:57:02,685 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:02,685 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-10 09:57:02,688 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-10 09:57:02,688 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:02,693 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:02,698 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:02,698 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-11-10 09:57:02,703 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2018-11-10 09:57:02,705 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2018-11-10 09:57:02,709 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2018-11-10 09:57:02,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2018-11-10 09:57:02,724 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:02,727 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:02,730 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:02,732 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:02,740 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:02,741 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:72, output treesize:33 [2018-11-10 09:57:02,748 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:02,750 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:02,751 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:02,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2018-11-10 09:57:02,753 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:02,772 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:02,772 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:34, output treesize:28 [2018-11-10 09:57:02,777 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 09:57:02,781 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 09:57:02,782 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:02,785 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:02,797 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:02,798 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:44 [2018-11-10 09:57:02,811 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:02,814 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:02,819 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:02,821 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:02,824 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:02,825 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2018-11-10 09:57:02,825 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:02,904 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2018-11-10 09:57:02,912 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-11-10 09:57:02,925 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:02,926 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 25 [2018-11-10 09:57:02,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2018-11-10 09:57:02,944 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:02,967 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:02,984 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:03,005 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:03,047 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:03,047 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:89, output treesize:72 [2018-11-10 09:57:03,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 61 [2018-11-10 09:57:03,149 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-10 09:57:03,149 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:03,169 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:03,170 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 12 [2018-11-10 09:57:03,170 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:03,178 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:03,192 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:03,192 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 10 variables, input treesize:104, output treesize:25 [2018-11-10 09:57:03,196 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 2 not checked. [2018-11-10 09:57:03,196 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 09:57:03,386 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2018-11-10 09:57:03,517 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2018-11-10 09:57:03,677 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-11-10 09:57:03,921 WARN L179 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-11-10 09:57:12,116 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 09:57:12,116 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-11-10 09:57:12,117 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 09:57:12,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 09:57:12,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=145, Unknown=6, NotChecked=24, Total=210 [2018-11-10 09:57:12,118 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 11 states. [2018-11-10 09:57:12,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:57:12,893 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-11-10 09:57:12,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 09:57:12,895 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 35 [2018-11-10 09:57:12,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:57:12,896 INFO L225 Difference]: With dead ends: 49 [2018-11-10 09:57:12,897 INFO L226 Difference]: Without dead ends: 47 [2018-11-10 09:57:12,898 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=55, Invalid=214, Unknown=7, NotChecked=30, Total=306 [2018-11-10 09:57:12,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-10 09:57:12,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-11-10 09:57:12,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-10 09:57:12,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2018-11-10 09:57:12,906 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 35 [2018-11-10 09:57:12,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:57:12,906 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2018-11-10 09:57:12,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 09:57:12,907 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2018-11-10 09:57:12,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-10 09:57:12,908 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:57:12,908 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:57:12,908 INFO L424 AbstractCegarLoop]: === Iteration 3 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:57:12,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:57:12,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1042279782, now seen corresponding path program 1 times [2018-11-10 09:57:12,909 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 09:57:12,909 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-10 09:57:12,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:57:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:57:13,484 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:57:13,489 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2018-11-10 09:57:13,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2018-11-10 09:57:13,496 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2018-11-10 09:57:13,511 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2018-11-10 09:57:13,512 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:13,515 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:13,518 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:13,520 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:13,522 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:13,522 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:60, output treesize:21 [2018-11-10 09:57:13,539 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-10 09:57:13,543 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-10 09:57:13,544 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:13,549 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:13,559 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:13,559 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:16, output treesize:17 [2018-11-10 09:57:13,589 WARN L854 $PredicateComparison]: unable to prove that (exists ((|returnsStructure_write~intINTTYPE4_#ptr.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| |returnsStructure_write~intINTTYPE4_#ptr.base|) (_ bv0 1)) (= (store |c_old(#valid)| |returnsStructure_write~intINTTYPE4_#ptr.base| (_ bv0 1)) |c_#valid|))) is different from true [2018-11-10 09:57:13,597 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:13,598 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:13,599 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:13,600 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2018-11-10 09:57:13,601 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:13,616 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:13,616 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:23 [2018-11-10 09:57:13,653 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 18 [2018-11-10 09:57:13,657 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-10 09:57:13,670 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-11-10 09:57:13,700 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2018-11-10 09:57:13,700 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:13,718 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:13,732 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:13,742 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:13,764 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:13,764 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:54, output treesize:51 [2018-11-10 09:57:13,768 WARN L854 $PredicateComparison]: unable to prove that (exists ((|returnsStructure_write~intINTTYPE4_#ptr.base| (_ BitVec 32))) (let ((.cse1 (select |c_#memory_int| |returnsStructure_write~intINTTYPE4_#ptr.base|))) (let ((.cse0 (select .cse1 (_ bv0 32)))) (and (= |c_returnsStructure_#res.f| (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (= (select |c_old(#valid)| |returnsStructure_write~intINTTYPE4_#ptr.base|) (_ bv0 1)) (= (store |c_old(#valid)| |returnsStructure_write~intINTTYPE4_#ptr.base| (_ bv0 1)) |c_#valid|) (= (_ bv0 32) (select .cse1 (_ bv4 32))) (= (bvand (bvand |c_returnsStructure_#in~index| (_ bv1 32)) (_ bv1 32)) .cse0))))) is different from true [2018-11-10 09:57:13,780 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:13,794 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:13,803 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:13,804 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 09:57:13,805 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 51 [2018-11-10 09:57:13,805 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:13,840 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:13,840 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:65 [2018-11-10 09:57:13,941 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:13,944 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 60 [2018-11-10 09:57:13,948 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 22 [2018-11-10 09:57:13,952 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:13,955 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2018-11-10 09:57:13,961 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:14,006 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 42 [2018-11-10 09:57:14,223 WARN L179 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2018-11-10 09:57:14,230 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:14,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 31 [2018-11-10 09:57:14,258 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 4 xjuncts. [2018-11-10 09:57:14,259 WARN L288 Elim1Store]: Array PQE input equivalent to false [2018-11-10 09:57:14,259 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:14,382 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 14 [2018-11-10 09:57:14,382 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-10 09:57:14,437 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 12 [2018-11-10 09:57:14,438 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-11-10 09:57:14,452 INFO L267 ElimStorePlain]: Start of recursive call 5: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:14,458 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:14,461 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:14,481 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:14,482 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 12 [2018-11-10 09:57:14,482 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:14,491 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:14,495 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:14,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 47 [2018-11-10 09:57:14,507 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-10 09:57:14,507 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:14,525 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:14,526 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 12 [2018-11-10 09:57:14,526 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:14,533 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:14,570 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-10 09:57:14,570 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:92, output treesize:82 [2018-11-10 09:57:14,687 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2018-11-10 09:57:14,689 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2018-11-10 09:57:14,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2018-11-10 09:57:14,712 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2018-11-10 09:57:14,713 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:14,715 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:14,717 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:14,719 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:14,725 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:14,725 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:72, output treesize:33 [2018-11-10 09:57:14,764 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 44 [2018-11-10 09:57:14,765 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:14,803 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:14,803 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:46, output treesize:40 [2018-11-10 09:57:14,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 09:57:14,890 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 09:57:14,890 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:14,893 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:14,910 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:14,910 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:52, output treesize:53 [2018-11-10 09:57:15,004 WARN L854 $PredicateComparison]: unable to prove that (exists ((|returnsField_write~intINTTYPE4_#ptr.base| (_ BitVec 32)) (|returnsField_write~intINTTYPE4_#value| (_ BitVec 32))) (and (= (select |c_old(#valid)| |returnsField_write~intINTTYPE4_#ptr.base|) (_ bv0 1)) (= (store |c_old(#memory_int)| |returnsField_write~intINTTYPE4_#ptr.base| (store (store (store (select |c_old(#memory_int)| |returnsField_write~intINTTYPE4_#ptr.base|) (_ bv0 32) (bvand (bvand |c_returnsField_#in~index| (_ bv1 32)) (_ bv1 32))) (_ bv4 32) (_ bv0 32)) (_ bv8 32) |returnsField_write~intINTTYPE4_#value|)) |c_#memory_int|) (= (let ((.cse0 (select (select |c_#memory_int| |returnsField_write~intINTTYPE4_#ptr.base|) (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) |c_returnsField_#res|))) is different from true [2018-11-10 09:57:15,023 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2018-11-10 09:57:15,024 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:15,136 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:15,141 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 58 [2018-11-10 09:57:15,150 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29 [2018-11-10 09:57:15,163 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:15,164 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-10 09:57:15,182 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-11-10 09:57:15,182 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:15,211 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:15,225 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:15,246 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:15,315 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:15,315 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:96, output treesize:74 [2018-11-10 09:57:15,446 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:15,448 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:15,448 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 65 [2018-11-10 09:57:15,462 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2018-11-10 09:57:15,463 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-10 09:57:15,492 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:15,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 12 [2018-11-10 09:57:15,493 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:15,506 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:15,520 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:15,521 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:89, output treesize:25 [2018-11-10 09:57:15,563 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 8 not checked. [2018-11-10 09:57:15,563 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 09:57:15,771 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2018-11-10 09:57:15,889 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2018-11-10 09:57:16,036 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-11-10 09:57:16,172 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-11-10 09:57:18,467 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 09:57:18,467 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 09:57:18,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:57:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:57:18,585 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:57:18,602 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:18,602 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-10 09:57:18,604 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-10 09:57:18,605 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:18,609 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:18,613 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:18,613 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-11-10 09:57:18,654 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:18,655 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:18,656 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:18,657 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-10 09:57:18,657 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:18,668 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:18,668 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:20 [2018-11-10 09:57:18,719 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:18,721 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:18,722 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:18,724 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:18,728 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:18,729 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 47 [2018-11-10 09:57:18,729 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:18,744 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:18,744 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:31, output treesize:25 [2018-11-10 09:57:18,793 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 72 [2018-11-10 09:57:18,796 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 57 [2018-11-10 09:57:18,800 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:18,802 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 57 [2018-11-10 09:57:18,823 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:18,825 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2018-11-10 09:57:18,826 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:18,831 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:18,834 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:18,836 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:18,843 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:18,843 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:90, output treesize:33 [2018-11-10 09:57:18,850 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:18,852 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:18,856 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:18,857 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:18,861 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:18,862 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 51 [2018-11-10 09:57:18,862 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:18,897 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:18,897 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:35 [2018-11-10 09:57:19,004 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 09:57:19,007 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 09:57:19,007 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:19,010 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:19,026 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:19,026 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:44 [2018-11-10 09:57:19,112 WARN L854 $PredicateComparison]: unable to prove that (exists ((|returnsField_write~intINTTYPE4_#ptr.base| (_ BitVec 32)) (|returnsField_write~intINTTYPE4_#ptr.offset| (_ BitVec 32)) (|returnsField_write~intINTTYPE4_#value| (_ BitVec 32))) (let ((.cse0 (bvadd |returnsField_write~intINTTYPE4_#ptr.offset| (_ bv4294967288 32)))) (and (= (select |c_old(#valid)| |returnsField_write~intINTTYPE4_#ptr.base|) (_ bv0 1)) (= |c_#memory_int| (store |c_old(#memory_int)| |returnsField_write~intINTTYPE4_#ptr.base| (store (store (store (select |c_old(#memory_int)| |returnsField_write~intINTTYPE4_#ptr.base|) .cse0 (bvand (bvand |c_returnsField_#in~index| (_ bv1 32)) (_ bv1 32))) (bvadd |returnsField_write~intINTTYPE4_#ptr.offset| (_ bv4294967292 32)) (_ bv0 32)) |returnsField_write~intINTTYPE4_#ptr.offset| |returnsField_write~intINTTYPE4_#value|))) (= (let ((.cse1 (select (select |c_#memory_int| |returnsField_write~intINTTYPE4_#ptr.base|) .cse0))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) |c_returnsField_#res|)))) is different from true [2018-11-10 09:57:19,121 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:19,123 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:19,127 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:19,128 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:19,130 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:19,131 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2018-11-10 09:57:19,131 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:19,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-11-10 09:57:19,210 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-10 09:57:19,218 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:19,220 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:19,221 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 39 [2018-11-10 09:57:19,231 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:19,233 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:19,240 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 56 [2018-11-10 09:57:19,240 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:19,266 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:19,286 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:19,311 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:19,369 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:19,370 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:101, output treesize:82 [2018-11-10 09:57:19,572 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2018-11-10 09:57:19,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 69 [2018-11-10 09:57:19,591 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:19,592 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:19,594 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 21 [2018-11-10 09:57:19,594 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:19,618 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-10 09:57:19,619 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:19,635 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:19,655 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:19,655 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:103, output treesize:25 [2018-11-10 09:57:19,663 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 2 not checked. [2018-11-10 09:57:19,663 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 09:57:19,879 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-11-10 09:57:19,979 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-11-10 09:57:20,105 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2018-11-10 09:57:20,228 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-11-10 09:57:28,915 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 09:57:28,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13] total 25 [2018-11-10 09:57:28,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-10 09:57:28,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-10 09:57:28,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=564, Unknown=6, NotChecked=204, Total=870 [2018-11-10 09:57:28,916 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand 25 states. [2018-11-10 09:57:30,421 WARN L179 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-11-10 09:57:31,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:57:31,300 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2018-11-10 09:57:31,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-10 09:57:31,301 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 46 [2018-11-10 09:57:31,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:57:31,302 INFO L225 Difference]: With dead ends: 47 [2018-11-10 09:57:31,302 INFO L226 Difference]: Without dead ends: 45 [2018-11-10 09:57:31,303 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=159, Invalid=906, Unknown=7, NotChecked=260, Total=1332 [2018-11-10 09:57:31,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-10 09:57:31,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-10 09:57:31,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-10 09:57:31,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2018-11-10 09:57:31,310 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 46 [2018-11-10 09:57:31,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:57:31,310 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2018-11-10 09:57:31,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-10 09:57:31,310 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2018-11-10 09:57:31,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-10 09:57:31,311 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:57:31,312 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:57:31,312 INFO L424 AbstractCegarLoop]: === Iteration 4 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:57:31,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:57:31,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1886731862, now seen corresponding path program 1 times [2018-11-10 09:57:31,313 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 09:57:31,313 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-10 09:57:31,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:57:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:57:32,117 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:57:32,129 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:32,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-10 09:57:32,132 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-10 09:57:32,133 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,137 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,142 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,142 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-11-10 09:57:32,157 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2018-11-10 09:57:32,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2018-11-10 09:57:32,164 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2018-11-10 09:57:32,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2018-11-10 09:57:32,178 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,180 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,182 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,185 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,192 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:32,192 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:72, output treesize:33 [2018-11-10 09:57:32,224 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:32,226 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:32,228 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:32,229 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-10 09:57:32,229 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,250 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:32,251 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:27 [2018-11-10 09:57:32,279 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 09:57:32,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 09:57:32,282 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,284 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,296 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:32,297 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:45 [2018-11-10 09:57:32,339 WARN L854 $PredicateComparison]: unable to prove that (exists ((|returnsField_write~intINTTYPE4_#ptr.base| (_ BitVec 32)) (|returnsField_write~intINTTYPE4_#value| (_ BitVec 32))) (and (= (select |c_old(#valid)| |returnsField_write~intINTTYPE4_#ptr.base|) (_ bv0 1)) (= (store |c_old(#memory_int)| |returnsField_write~intINTTYPE4_#ptr.base| (store (store (store (select |c_old(#memory_int)| |returnsField_write~intINTTYPE4_#ptr.base|) (_ bv0 32) (bvand (bvand |c_returnsField_#in~index| (_ bv1 32)) (_ bv1 32))) (_ bv4 32) (_ bv0 32)) (_ bv8 32) |returnsField_write~intINTTYPE4_#value|)) |c_#memory_int|) (= (let ((.cse0 (select (select |c_#memory_int| |returnsField_write~intINTTYPE4_#ptr.base|) (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) |c_returnsField_#res|))) is different from true [2018-11-10 09:57:32,351 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:32,358 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:32,359 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 09:57:32,360 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-11-10 09:57:32,360 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,454 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2018-11-10 09:57:32,462 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-11-10 09:57:32,470 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:32,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 25 [2018-11-10 09:57:32,482 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2018-11-10 09:57:32,482 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,498 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,515 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,542 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,609 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:32,609 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:88, output treesize:72 [2018-11-10 09:57:32,743 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 59 [2018-11-10 09:57:32,750 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-10 09:57:32,751 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,778 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:32,779 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 12 [2018-11-10 09:57:32,779 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,788 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,803 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:32,804 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:93, output treesize:25 [2018-11-10 09:57:32,833 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 2 not checked. [2018-11-10 09:57:32,833 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 09:57:33,101 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2018-11-10 09:57:33,279 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-11-10 09:57:33,454 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-11-10 09:57:35,659 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-11-10 09:57:35,673 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 09:57:35,673 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 09:57:35,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:57:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:57:35,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:57:35,854 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:35,855 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-10 09:57:35,860 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-10 09:57:35,860 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:35,871 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:35,876 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:35,876 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-11-10 09:57:35,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 72 [2018-11-10 09:57:35,885 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 57 [2018-11-10 09:57:35,889 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:35,892 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 57 [2018-11-10 09:57:35,911 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:35,913 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2018-11-10 09:57:35,914 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:35,918 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:35,920 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:35,922 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:35,928 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:35,928 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:90, output treesize:33 [2018-11-10 09:57:35,932 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:35,944 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:35,948 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:35,948 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-10 09:57:35,949 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:35,962 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:35,962 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:27 [2018-11-10 09:57:35,967 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 09:57:35,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 09:57:35,969 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:35,972 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:35,985 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:35,986 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:45 [2018-11-10 09:57:35,999 WARN L854 $PredicateComparison]: unable to prove that (exists ((|returnsField_write~intINTTYPE4_#ptr.base| (_ BitVec 32)) (|returnsField_write~intINTTYPE4_#ptr.offset| (_ BitVec 32)) (|returnsField_write~intINTTYPE4_#value| (_ BitVec 32))) (let ((.cse0 (bvadd |returnsField_write~intINTTYPE4_#ptr.offset| (_ bv4294967288 32)))) (and (= (select |c_old(#valid)| |returnsField_write~intINTTYPE4_#ptr.base|) (_ bv0 1)) (= |c_#memory_int| (store |c_old(#memory_int)| |returnsField_write~intINTTYPE4_#ptr.base| (store (store (store (select |c_old(#memory_int)| |returnsField_write~intINTTYPE4_#ptr.base|) .cse0 (bvand (bvand |c_returnsField_#in~index| (_ bv1 32)) (_ bv1 32))) (bvadd |returnsField_write~intINTTYPE4_#ptr.offset| (_ bv4294967292 32)) (_ bv0 32)) |returnsField_write~intINTTYPE4_#ptr.offset| |returnsField_write~intINTTYPE4_#value|))) (= (let ((.cse1 (select (select |c_#memory_int| |returnsField_write~intINTTYPE4_#ptr.base|) .cse0))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) |c_returnsField_#res|)))) is different from true [2018-11-10 09:57:36,011 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:36,012 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:36,013 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 09:57:36,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2018-11-10 09:57:36,015 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:36,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-11-10 09:57:36,099 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-10 09:57:36,105 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:36,107 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:36,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 39 [2018-11-10 09:57:36,116 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:36,118 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:36,123 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 56 [2018-11-10 09:57:36,124 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:36,155 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:36,172 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:36,196 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:36,251 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-10 09:57:36,251 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:100, output treesize:82 [2018-11-10 09:57:36,596 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 71 [2018-11-10 09:57:36,601 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:36,602 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 09:57:36,603 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 21 [2018-11-10 09:57:36,604 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:36,618 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-10 09:57:36,619 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 09:57:36,625 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:36,637 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:57:36,637 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:105, output treesize:25 [2018-11-10 09:57:36,642 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 2 not checked. [2018-11-10 09:57:36,642 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 09:57:37,037 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2018-11-10 09:57:37,158 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-11-10 09:57:43,387 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 09:57:43,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2018-11-10 09:57:43,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-10 09:57:43,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-10 09:57:43,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=172, Unknown=5, NotChecked=54, Total=272 [2018-11-10 09:57:43,389 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand 13 states. [2018-11-10 09:57:44,254 WARN L179 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-11-10 09:57:44,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:57:44,874 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2018-11-10 09:57:44,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 09:57:44,874 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 62 [2018-11-10 09:57:44,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:57:44,875 INFO L225 Difference]: With dead ends: 45 [2018-11-10 09:57:44,875 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 09:57:44,876 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=62, Invalid=246, Unknown=6, NotChecked=66, Total=380 [2018-11-10 09:57:44,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 09:57:44,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 09:57:44,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 09:57:44,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 09:57:44,876 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-11-10 09:57:44,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:57:44,877 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 09:57:44,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-10 09:57:44,877 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 09:57:44,877 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 09:57:44,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 09:57:45,160 INFO L425 ceAbstractionStarter]: For program point L130-1(line 130) no Hoare annotation was computed. [2018-11-10 09:57:45,160 INFO L425 ceAbstractionStarter]: For program point testOneFINAL(lines 127 136) no Hoare annotation was computed. [2018-11-10 09:57:45,160 INFO L425 ceAbstractionStarter]: For program point testOneErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133) no Hoare annotation was computed. [2018-11-10 09:57:45,160 INFO L425 ceAbstractionStarter]: For program point testOneEXIT(lines 127 136) no Hoare annotation was computed. [2018-11-10 09:57:45,160 INFO L421 ceAbstractionStarter]: At program point testOneENTRY(lines 127 136) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-10 09:57:45,160 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-10 09:57:45,160 INFO L425 ceAbstractionStarter]: For program point L133-1(line 133) no Hoare annotation was computed. [2018-11-10 09:57:45,160 INFO L421 ceAbstractionStarter]: At program point L131(line 131) the Hoare annotation is: (and (not (= |testOne_~#f1~0.base| |testOne_~#f2~0.base|)) (exists ((|returnsStructure_write~intINTTYPE4_#ptr.base| (_ BitVec 32))) (= (select |#valid| |returnsStructure_write~intINTTYPE4_#ptr.base|) (_ bv0 1))) (= |testOne_~#f1~0.offset| (_ bv0 32)) (= (bvadd (select |#valid| |testOne_~#f1~0.base|) (_ bv1 1)) (_ bv0 1)) (not (= (_ bv0 1) (select |#valid| |testOne_~#f2~0.base|))) (= (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)) (let ((.cse0 (select (select |#memory_int| |testOne_~#f1~0.base|) |testOne_~#f1~0.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) [2018-11-10 09:57:45,161 INFO L421 ceAbstractionStarter]: At program point L130(line 130) the Hoare annotation is: (and (not (= |testOne_~#f1~0.base| |testOne_~#f2~0.base|)) (= (_ bv1 1) (select |#valid| |testOne_~#f2~0.base|)) (= |testOne_~#f1~0.offset| (_ bv0 32)) (= (bvadd (select |#valid| |testOne_~#f1~0.base|) (_ bv1 1)) (_ bv0 1))) [2018-11-10 09:57:45,161 INFO L425 ceAbstractionStarter]: For program point L131-1(line 131) no Hoare annotation was computed. [2018-11-10 09:57:45,161 INFO L425 ceAbstractionStarter]: For program point L133-3(line 133) no Hoare annotation was computed. [2018-11-10 09:57:45,161 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 09:57:45,161 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-11-10 09:57:45,161 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 09:57:45,161 INFO L421 ceAbstractionStarter]: At program point returnsStructureENTRY(lines 116 124) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-10 09:57:45,161 INFO L425 ceAbstractionStarter]: For program point returnsStructureFINAL(lines 116 124) no Hoare annotation was computed. [2018-11-10 09:57:45,161 INFO L425 ceAbstractionStarter]: For program point returnsStructureEXIT(lines 116 124) no Hoare annotation was computed. [2018-11-10 09:57:45,161 INFO L425 ceAbstractionStarter]: For program point L162-1(line 162) no Hoare annotation was computed. [2018-11-10 09:57:45,162 INFO L421 ceAbstractionStarter]: At program point L160(line 160) the Hoare annotation is: (and (= (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)) (let ((.cse0 (select (select |#memory_int| |testThree_~#f1~2.base|) |testThree_~#f1~2.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (exists ((|returnsField_write~intINTTYPE4_#ptr.base| (_ BitVec 32))) (= (select |#valid| |returnsField_write~intINTTYPE4_#ptr.base|) (_ bv0 1))) (= (_ bv1 1) (select |#valid| |testThree_~#f1~2.base|)) (not (= (_ bv0 1) (select |#valid| |testThree_~#f2~2.base|))) (not (= |testThree_~#f1~2.base| |testThree_~#f2~2.base|))) [2018-11-10 09:57:45,162 INFO L421 ceAbstractionStarter]: At program point L159(line 159) the Hoare annotation is: (and (= (_ bv1 1) (select |#valid| |testThree_~#f1~2.base|)) (= (_ bv1 1) (select |#valid| |testThree_~#f2~2.base|)) (not (= |testThree_~#f1~2.base| |testThree_~#f2~2.base|))) [2018-11-10 09:57:45,162 INFO L425 ceAbstractionStarter]: For program point L160-1(line 160) no Hoare annotation was computed. [2018-11-10 09:57:45,162 INFO L425 ceAbstractionStarter]: For program point L162-3(line 162) no Hoare annotation was computed. [2018-11-10 09:57:45,162 INFO L425 ceAbstractionStarter]: For program point L159-1(line 159) no Hoare annotation was computed. [2018-11-10 09:57:45,162 INFO L425 ceAbstractionStarter]: For program point testThreeFINAL(lines 156 165) no Hoare annotation was computed. [2018-11-10 09:57:45,162 INFO L425 ceAbstractionStarter]: For program point testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION(line 162) no Hoare annotation was computed. [2018-11-10 09:57:45,162 INFO L425 ceAbstractionStarter]: For program point testThreeEXIT(lines 156 165) no Hoare annotation was computed. [2018-11-10 09:57:45,162 INFO L421 ceAbstractionStarter]: At program point testThreeENTRY(lines 156 165) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-10 09:57:45,162 INFO L425 ceAbstractionStarter]: For program point L162(line 162) no Hoare annotation was computed. [2018-11-10 09:57:45,162 INFO L425 ceAbstractionStarter]: For program point returnsFieldEXIT(lines 106 114) no Hoare annotation was computed. [2018-11-10 09:57:45,163 INFO L421 ceAbstractionStarter]: At program point returnsFieldENTRY(lines 106 114) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-10 09:57:45,163 INFO L425 ceAbstractionStarter]: For program point returnsFieldFINAL(lines 106 114) no Hoare annotation was computed. [2018-11-10 09:57:45,163 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 09:57:45,163 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 09:57:45,163 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 09:57:45,163 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 09:57:45,163 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 167 173) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-10 09:57:45,163 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 167 173) no Hoare annotation was computed. [2018-11-10 09:57:45,163 INFO L425 ceAbstractionStarter]: For program point L170(line 170) no Hoare annotation was computed. [2018-11-10 09:57:45,163 INFO L428 ceAbstractionStarter]: At program point L169(line 169) the Hoare annotation is: true [2018-11-10 09:57:45,163 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 167 173) no Hoare annotation was computed. [2018-11-10 09:57:45,163 INFO L428 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: true [2018-11-10 09:57:45,164 INFO L425 ceAbstractionStarter]: For program point testTwoEXIT(lines 139 153) no Hoare annotation was computed. [2018-11-10 09:57:45,164 INFO L425 ceAbstractionStarter]: For program point testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION(line 150) no Hoare annotation was computed. [2018-11-10 09:57:45,164 INFO L425 ceAbstractionStarter]: For program point L147(line 147) no Hoare annotation was computed. [2018-11-10 09:57:45,164 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-10 09:57:45,164 INFO L425 ceAbstractionStarter]: For program point L145-1(line 145) no Hoare annotation was computed. [2018-11-10 09:57:45,164 INFO L421 ceAbstractionStarter]: At program point L143(line 143) the Hoare annotation is: (let ((.cse1 (select |#valid| |testTwo_~#f1~1.base|))) (and (= (let ((.cse0 (select (select |#memory_int| |testTwo_~#f1~1.base|) |testTwo_~#f1~1.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= (_ bv1 1) .cse1) (exists ((|returnsStructure_write~intINTTYPE4_#ptr.base| (_ BitVec 32))) (= (select |#valid| |returnsStructure_write~intINTTYPE4_#ptr.base|) (_ bv0 1))) (= (_ bv0 32) |testTwo_~#f2~1.offset|) (not (= |testTwo_~#f1~1.base| |testTwo_~#f2~1.base|)) (= .cse1 (select |#valid| |testTwo_~#f2~1.base|)) (= (_ bv0 32) |testTwo_~#f1~1.offset|))) [2018-11-10 09:57:45,164 INFO L425 ceAbstractionStarter]: For program point L143-1(line 143) no Hoare annotation was computed. [2018-11-10 09:57:45,164 INFO L421 ceAbstractionStarter]: At program point L145-3(line 145) the Hoare annotation is: (let ((.cse1 (select |#valid| |testTwo_~#f1~1.base|))) (and (= (let ((.cse0 (select (select |#memory_int| |testTwo_~#f1~1.base|) |testTwo_~#f1~1.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= (_ bv1 1) .cse1) (exists ((|returnsStructure_write~intINTTYPE4_#ptr.base| (_ BitVec 32))) (= (select |#valid| |returnsStructure_write~intINTTYPE4_#ptr.base|) (_ bv0 1))) (= (_ bv0 32) |testTwo_~#f2~1.offset|) (not (= |testTwo_~#f1~1.base| |testTwo_~#f2~1.base|)) (= .cse1 (select |#valid| |testTwo_~#f2~1.base|)) (= (_ bv0 32) |testTwo_~#f1~1.offset|))) [2018-11-10 09:57:45,164 INFO L425 ceAbstractionStarter]: For program point testTwoFINAL(lines 139 153) no Hoare annotation was computed. [2018-11-10 09:57:45,165 INFO L425 ceAbstractionStarter]: For program point L150(line 150) no Hoare annotation was computed. [2018-11-10 09:57:45,165 INFO L425 ceAbstractionStarter]: For program point L150-1(line 150) no Hoare annotation was computed. [2018-11-10 09:57:45,165 INFO L421 ceAbstractionStarter]: At program point L148(line 148) the Hoare annotation is: (let ((.cse1 (select |#valid| |testTwo_~#f1~1.base|))) (and (= (let ((.cse0 (select (select |#memory_int| |testTwo_~#f1~1.base|) |testTwo_~#f1~1.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= (_ bv1 1) .cse1) (exists ((|returnsField_write~intINTTYPE4_#ptr.base| (_ BitVec 32))) (= (select |#valid| |returnsField_write~intINTTYPE4_#ptr.base|) (_ bv0 1))) (= (_ bv0 32) |testTwo_~#f2~1.offset|) (not (= |testTwo_~#f1~1.base| |testTwo_~#f2~1.base|)) (= .cse1 (select |#valid| |testTwo_~#f2~1.base|)) (= (_ bv0 32) |testTwo_~#f1~1.offset|))) [2018-11-10 09:57:45,165 INFO L425 ceAbstractionStarter]: For program point L148-1(line 148) no Hoare annotation was computed. [2018-11-10 09:57:45,165 INFO L425 ceAbstractionStarter]: For program point L150-3(line 150) no Hoare annotation was computed. [2018-11-10 09:57:45,165 INFO L421 ceAbstractionStarter]: At program point testTwoENTRY(lines 139 153) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-10 09:57:45,165 INFO L421 ceAbstractionStarter]: At program point L142(line 142) the Hoare annotation is: (and (= (_ bv1 1) (select |#valid| |testTwo_~#f2~1.base|)) (= (_ bv1 1) (select |#valid| |testTwo_~#f1~1.base|)) (= (_ bv0 32) |testTwo_~#f2~1.offset|) (not (= |testTwo_~#f1~1.base| |testTwo_~#f2~1.base|)) (= (_ bv0 32) |testTwo_~#f1~1.offset|)) [2018-11-10 09:57:45,165 INFO L425 ceAbstractionStarter]: For program point L142-1(line 142) no Hoare annotation was computed. [2018-11-10 09:57:45,165 INFO L425 ceAbstractionStarter]: For program point testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2018-11-10 09:57:45,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 09:57:45 BoogieIcfgContainer [2018-11-10 09:57:45,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 09:57:45,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 09:57:45,169 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 09:57:45,169 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 09:57:45,169 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:56:35" (3/4) ... [2018-11-10 09:57:45,173 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 09:57:45,179 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure testOne [2018-11-10 09:57:45,180 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 09:57:45,180 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure returnsStructure [2018-11-10 09:57:45,180 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure testThree [2018-11-10 09:57:45,180 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure returnsField [2018-11-10 09:57:45,180 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 09:57:45,180 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure testTwo [2018-11-10 09:57:45,189 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 143 nodes and edges [2018-11-10 09:57:45,189 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 76 nodes and edges [2018-11-10 09:57:45,190 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2018-11-10 09:57:45,190 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 09:57:45,238 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_74d4221b-39bd-4ec1-bbc3-989fece649cb/bin-2019/utaipan/witness.graphml [2018-11-10 09:57:45,239 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 09:57:45,239 INFO L168 Benchmark]: Toolchain (without parser) took 70392.11 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 306.2 MB). Free memory was 950.6 MB in the beginning and 905.4 MB in the end (delta: 45.2 MB). Peak memory consumption was 351.3 MB. Max. memory is 11.5 GB. [2018-11-10 09:57:45,240 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 09:57:45,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.83 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 934.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 09:57:45,240 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.11 ms. Allocated memory is still 1.0 GB. Free memory is still 934.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 09:57:45,240 INFO L168 Benchmark]: Boogie Preprocessor took 48.74 ms. Allocated memory is still 1.0 GB. Free memory was 934.5 MB in the beginning and 929.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 09:57:45,240 INFO L168 Benchmark]: RCFGBuilder took 479.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 929.1 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-11-10 09:57:45,240 INFO L168 Benchmark]: TraceAbstraction took 69516.53 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 149.4 MB). Free memory was 1.1 GB in the beginning and 905.4 MB in the end (delta: 195.5 MB). Peak memory consumption was 345.0 MB. Max. memory is 11.5 GB. [2018-11-10 09:57:45,241 INFO L168 Benchmark]: Witness Printer took 70.18 ms. Allocated memory is still 1.3 GB. Free memory is still 905.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 09:57:45,242 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 223.83 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 934.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.11 ms. Allocated memory is still 1.0 GB. Free memory is still 934.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.74 ms. Allocated memory is still 1.0 GB. Free memory was 934.5 MB in the beginning and 929.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 479.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 929.1 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 69516.53 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 149.4 MB). Free memory was 1.1 GB in the beginning and 905.4 MB in the end (delta: 195.5 MB). Peak memory consumption was 345.0 MB. Max. memory is 11.5 GB. * Witness Printer took 70.18 ms. Allocated memory is still 1.3 GB. Free memory is still 905.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 133]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 162]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 145]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 150]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 59 locations, 4 error locations. SAFE Result, 69.4s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 5.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 146 SDtfs, 16 SDslu, 847 SDs, 0 SdLazy, 792 SolverSat, 133 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 364 GetRequests, 270 SyntacticMatches, 5 SemanticMatches, 89 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 52.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred 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, 19 LocationsWithAnnotation, 39 PreInvPairs, 43 NumberOfFragments, 361 HoareAnnotationTreeSize, 39 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 37 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 61.0s InterpolantComputationTime, 324 NumberOfCodeBlocks, 324 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 316 ConstructedInterpolants, 74 QuantifiedInterpolants, 155574 SizeOfPredicates, 471 NumberOfNonLiveVariables, 2664 ConjunctsInSsa, 588 ConjunctsInUnsatCore, 8 InterpolantComputations, 0 PerfectInterpolantSequences, 134/156 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...