./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/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_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/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_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/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_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/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 0.1.23-635dfa2 [2018-12-09 09:56:59,075 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 09:56:59,076 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 09:56:59,082 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 09:56:59,082 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 09:56:59,083 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 09:56:59,084 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 09:56:59,084 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 09:56:59,085 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 09:56:59,086 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 09:56:59,086 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 09:56:59,086 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 09:56:59,087 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 09:56:59,087 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 09:56:59,088 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 09:56:59,088 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 09:56:59,089 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 09:56:59,089 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 09:56:59,090 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 09:56:59,091 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 09:56:59,092 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 09:56:59,092 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 09:56:59,093 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 09:56:59,094 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 09:56:59,094 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 09:56:59,094 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 09:56:59,095 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 09:56:59,095 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 09:56:59,096 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 09:56:59,096 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 09:56:59,096 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 09:56:59,097 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 09:56:59,097 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 09:56:59,097 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 09:56:59,097 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 09:56:59,098 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 09:56:59,098 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 09:56:59,105 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 09:56:59,105 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 09:56:59,106 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 09:56:59,106 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 09:56:59,106 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 09:56:59,106 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 09:56:59,106 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 09:56:59,106 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 09:56:59,106 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 09:56:59,106 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 09:56:59,106 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 09:56:59,106 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 09:56:59,107 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 09:56:59,107 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 09:56:59,107 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 09:56:59,107 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 09:56:59,107 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 09:56:59,107 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 09:56:59,107 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 09:56:59,107 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 09:56:59,108 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 09:56:59,108 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 09:56:59,108 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 09:56:59,108 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 09:56:59,108 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 09:56:59,108 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 09:56:59,108 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 09:56:59,108 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 09:56:59,108 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 09:56:59,108 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 09:56:59,109 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 09:56:59,109 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 09:56:59,109 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 09:56:59,109 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 09:56:59,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 09:56:59,109 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 09:56:59,109 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_093f2cfa-a363-418d-bcf8-81ec93118b53/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 [2018-12-09 09:56:59,126 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 09:56:59,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 09:56:59,135 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 09:56:59,136 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 09:56:59,136 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 09:56:59,136 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-12-09 09:56:59,170 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/data/9687e5965/d4312c60c412470fbce1979383d0ed0d/FLAG1b94edc71 [2018-12-09 09:56:59,609 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 09:56:59,609 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-12-09 09:56:59,613 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/data/9687e5965/d4312c60c412470fbce1979383d0ed0d/FLAG1b94edc71 [2018-12-09 09:56:59,621 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/data/9687e5965/d4312c60c412470fbce1979383d0ed0d [2018-12-09 09:56:59,623 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 09:56:59,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 09:56:59,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 09:56:59,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 09:56:59,627 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 09:56:59,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:56:59" (1/1) ... [2018-12-09 09:56:59,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f93a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:56:59, skipping insertion in model container [2018-12-09 09:56:59,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:56:59" (1/1) ... [2018-12-09 09:56:59,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 09:56:59,646 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 09:56:59,737 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 09:56:59,739 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 09:56:59,756 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 09:56:59,768 INFO L195 MainTranslator]: Completed translation [2018-12-09 09:56:59,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:56:59 WrapperNode [2018-12-09 09:56:59,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 09:56:59,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 09:56:59,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 09:56:59,770 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 09:56:59,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:56:59" (1/1) ... [2018-12-09 09:56:59,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:56:59" (1/1) ... [2018-12-09 09:56:59,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 09:56:59,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 09:56:59,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 09:56:59,785 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 09:56:59,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:56:59" (1/1) ... [2018-12-09 09:56:59,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:56:59" (1/1) ... [2018-12-09 09:56:59,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:56:59" (1/1) ... [2018-12-09 09:56:59,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:56:59" (1/1) ... [2018-12-09 09:56:59,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:56:59" (1/1) ... [2018-12-09 09:56:59,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:56:59" (1/1) ... [2018-12-09 09:56:59,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:56:59" (1/1) ... [2018-12-09 09:56:59,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 09:56:59,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 09:56:59,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 09:56:59,834 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 09:56:59,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:56:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/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 [2018-12-09 09:56:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure testOne [2018-12-09 09:56:59,865 INFO L138 BoogieDeclarations]: Found implementation of procedure testOne [2018-12-09 09:56:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure testThree [2018-12-09 09:56:59,865 INFO L138 BoogieDeclarations]: Found implementation of procedure testThree [2018-12-09 09:56:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2018-12-09 09:56:59,865 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2018-12-09 09:56:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 09:56:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 09:56:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure testTwo [2018-12-09 09:56:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure testTwo [2018-12-09 09:56:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 09:56:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 09:56:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 09:56:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 09:56:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 09:56:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 09:56:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2018-12-09 09:56:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2018-12-09 09:56:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 09:56:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 09:56:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 09:56:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 09:57:00,035 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 09:57:00,035 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 09:57:00,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:57:00 BoogieIcfgContainer [2018-12-09 09:57:00,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 09:57:00,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 09:57:00,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 09:57:00,038 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 09:57:00,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 09:56:59" (1/3) ... [2018-12-09 09:57:00,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1060ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:57:00, skipping insertion in model container [2018-12-09 09:57:00,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:56:59" (2/3) ... [2018-12-09 09:57:00,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1060ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:57:00, skipping insertion in model container [2018-12-09 09:57:00,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:57:00" (3/3) ... [2018-12-09 09:57:00,040 INFO L112 eAbstractionObserver]: Analyzing ICFG float22_true-unreach-call_true-termination.i [2018-12-09 09:57:00,046 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 09:57:00,051 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-09 09:57:00,060 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-09 09:57:00,078 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 09:57:00,078 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 09:57:00,078 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 09:57:00,078 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 09:57:00,078 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 09:57:00,078 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 09:57:00,078 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 09:57:00,078 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 09:57:00,089 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-12-09 09:57:00,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 09:57:00,092 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:57:00,092 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:57:00,093 INFO L423 AbstractCegarLoop]: === Iteration 1 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:57:00,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:57:00,097 INFO L82 PathProgramCache]: Analyzing trace with hash 355812978, now seen corresponding path program 1 times [2018-12-09 09:57:00,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:57:00,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:57:00,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:57:00,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:57:00,125 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:57:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:57:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:57:00,224 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 09:57:00,232 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-09 09:57:00,232 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-12-09 09:57:00,233 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-09 09:57:00,233 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-12-09 09:57:00,233 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-09 09:57:00,233 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-12-09 09:57:00,233 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-09 09:57:00,233 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-12-09 09:57:00,233 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-09 09:57:00,234 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-12-09 09:57:00,234 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-09 09:57:00,234 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-12-09 09:57:00,234 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled [2018-12-09 09:57:00,234 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled [2018-12-09 09:57:00,234 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled [2018-12-09 09:57:00,234 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-09 09:57:00,235 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-12-09 09:57:00,235 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-09 09:57:00,235 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-12-09 09:57:00,235 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-09 09:57:00,235 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-12-09 09:57:00,235 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-09 09:57:00,235 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-12-09 09:57:00,235 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-09 09:57:00,236 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-12-09 09:57:00,236 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-09 09:57:00,236 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-12-09 09:57:00,236 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled [2018-12-09 09:57:00,236 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled [2018-12-09 09:57:00,236 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled [2018-12-09 09:57:00,241 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.negative [2018-12-09 09:57:00,241 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.mantissa [2018-12-09 09:57:00,242 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.exponent [2018-12-09 09:57:00,242 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res!f [2018-12-09 09:57:00,242 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res!f [2018-12-09 09:57:00,242 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.negative [2018-12-09 09:57:00,242 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.mantissa [2018-12-09 09:57:00,242 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.exponent [2018-12-09 09:57:00,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 09:57:00 BoogieIcfgContainer [2018-12-09 09:57:00,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 09:57:00,248 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 09:57:00,248 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 09:57:00,248 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 09:57:00,249 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:57:00" (3/4) ... [2018-12-09 09:57:00,251 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 09:57:00,251 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 09:57:00,251 INFO L168 Benchmark]: Toolchain (without parser) took 628.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -115.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2018-12-09 09:57:00,253 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 09:57:00,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.40 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 941.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-09 09:57:00,253 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.28 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 09:57:00,254 INFO L168 Benchmark]: Boogie Preprocessor took 48.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -194.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-09 09:57:00,254 INFO L168 Benchmark]: RCFGBuilder took 201.88 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-09 09:57:00,254 INFO L168 Benchmark]: TraceAbstraction took 211.67 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: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 11.5 GB. [2018-12-09 09:57:00,255 INFO L168 Benchmark]: Witness Printer took 2.97 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. [2018-12-09 09:57:00,256 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.40 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 941.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.28 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -194.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 201.88 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 211.67 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: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.97 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 #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 #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 #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 #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 #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 #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 #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 #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 #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 #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 #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 #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 #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 #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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - 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!f - GenericResult: Unfinished Backtranslation unknown boogie variable #res!f - 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 * 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] ieee754_float f1, f2; VAL [f1={21:0}, f2={27:0}] [L130] CALL, EXPR returnsStructure(0) VAL [\old(index)=0] [L117] ieee754_float c; [L119] c.ieee.negative = index & 0x1 [L120] c.ieee.exponent = 0 [L121] c.ieee.mantissa = 0 [L123] return c; [L123] return c; VAL [\old(index)=0, index=0, unknown-#res!f-unknown=25, unknown-#res.ieee.exponent-unknown=0, unknown-#res.ieee.mantissa-unknown=0, unknown-#res.ieee.negative-unknown=0] [L130] RET, EXPR returnsStructure(0) VAL [f1={21:0}, f2={27:0}, returnsStructure(0)=0returnsStructure(0)=0returnsStructure(0)=25returnsStructure(0)=0] [L130] f1 = returnsStructure(0) [L131] CALL, EXPR returnsStructure(1) VAL [\old(index)=1] [L117] ieee754_float c; [L119] c.ieee.negative = index & 0x1 [L120] c.ieee.exponent = 0 [L121] c.ieee.mantissa = 0 [L123] return c; [L123] return c; VAL [\old(index)=1, index=1, unknown-#res!f-unknown=19, unknown-#res.ieee.exponent-unknown=0, unknown-#res.ieee.mantissa-unknown=0, unknown-#res.ieee.negative-unknown=0] [L131] RET, EXPR returnsStructure(1) VAL [f1={21:0}, f2={27:0}, returnsStructure(1)=0returnsStructure(1)=0returnsStructure(1)=0returnsStructure(1)=19] [L131] f2 = returnsStructure(1) [L133] EXPR f1.ieee.negative [L133] EXPR f2.ieee.negative VAL [f1={21:0}, f1.ieee.negative=0, f2={27:0}, f2.ieee.negative=0] [L133] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L133] __VERIFIER_error() VAL [f1={21:0}, f2={27:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 59 locations, 4 error locations. UNSAFE Result, 0.1s 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 0.1.23-635dfa2 [2018-12-09 09:57:01,610 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 09:57:01,611 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 09:57:01,618 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 09:57:01,618 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 09:57:01,618 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 09:57:01,619 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 09:57:01,620 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 09:57:01,621 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 09:57:01,622 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 09:57:01,622 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 09:57:01,622 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 09:57:01,622 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 09:57:01,623 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 09:57:01,623 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 09:57:01,624 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 09:57:01,624 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 09:57:01,625 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 09:57:01,626 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 09:57:01,627 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 09:57:01,627 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 09:57:01,628 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 09:57:01,629 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 09:57:01,629 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 09:57:01,629 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 09:57:01,629 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 09:57:01,630 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 09:57:01,630 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 09:57:01,630 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 09:57:01,631 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 09:57:01,631 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 09:57:01,632 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 09:57:01,632 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 09:57:01,632 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 09:57:01,633 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 09:57:01,633 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 09:57:01,633 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 09:57:01,643 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 09:57:01,643 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 09:57:01,644 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 09:57:01,644 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 09:57:01,644 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 09:57:01,644 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 09:57:01,645 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 09:57:01,645 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 09:57:01,645 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 09:57:01,645 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 09:57:01,646 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 09:57:01,646 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 09:57:01,646 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 09:57:01,646 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 09:57:01,646 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 09:57:01,646 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 09:57:01,646 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 09:57:01,646 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 09:57:01,647 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 09:57:01,647 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 09:57:01,647 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 09:57:01,647 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 09:57:01,647 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 09:57:01,647 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 09:57:01,647 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 09:57:01,648 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 09:57:01,648 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 09:57:01,648 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 09:57:01,648 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 09:57:01,648 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 09:57:01,648 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 09:57:01,648 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 09:57:01,648 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 09:57:01,649 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 09:57:01,649 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 09:57:01,649 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_093f2cfa-a363-418d-bcf8-81ec93118b53/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 [2018-12-09 09:57:01,672 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 09:57:01,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 09:57:01,683 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 09:57:01,684 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 09:57:01,684 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 09:57:01,684 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-12-09 09:57:01,723 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/data/2884be07f/a52b4124b41d4c7191663179cbd633ac/FLAG1fa557aec [2018-12-09 09:57:02,184 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 09:57:02,184 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-12-09 09:57:02,189 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/data/2884be07f/a52b4124b41d4c7191663179cbd633ac/FLAG1fa557aec [2018-12-09 09:57:02,197 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/data/2884be07f/a52b4124b41d4c7191663179cbd633ac [2018-12-09 09:57:02,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 09:57:02,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 09:57:02,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 09:57:02,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 09:57:02,203 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 09:57:02,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:57:02" (1/1) ... [2018-12-09 09:57:02,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6341db38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:57:02, skipping insertion in model container [2018-12-09 09:57:02,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:57:02" (1/1) ... [2018-12-09 09:57:02,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 09:57:02,225 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 09:57:02,339 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 09:57:02,344 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 09:57:02,366 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 09:57:02,384 INFO L195 MainTranslator]: Completed translation [2018-12-09 09:57:02,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:57:02 WrapperNode [2018-12-09 09:57:02,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 09:57:02,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 09:57:02,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 09:57:02,386 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 09:57:02,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:57:02" (1/1) ... [2018-12-09 09:57:02,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:57:02" (1/1) ... [2018-12-09 09:57:02,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 09:57:02,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 09:57:02,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 09:57:02,404 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 09:57:02,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:57:02" (1/1) ... [2018-12-09 09:57:02,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:57:02" (1/1) ... [2018-12-09 09:57:02,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:57:02" (1/1) ... [2018-12-09 09:57:02,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:57:02" (1/1) ... [2018-12-09 09:57:02,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:57:02" (1/1) ... [2018-12-09 09:57:02,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:57:02" (1/1) ... [2018-12-09 09:57:02,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:57:02" (1/1) ... [2018-12-09 09:57:02,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 09:57:02,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 09:57:02,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 09:57:02,427 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 09:57:02,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:57:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/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 [2018-12-09 09:57:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure testOne [2018-12-09 09:57:02,490 INFO L138 BoogieDeclarations]: Found implementation of procedure testOne [2018-12-09 09:57:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure testThree [2018-12-09 09:57:02,490 INFO L138 BoogieDeclarations]: Found implementation of procedure testThree [2018-12-09 09:57:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2018-12-09 09:57:02,490 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2018-12-09 09:57:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 09:57:02,490 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 09:57:02,491 INFO L130 BoogieDeclarations]: Found specification of procedure testTwo [2018-12-09 09:57:02,491 INFO L138 BoogieDeclarations]: Found implementation of procedure testTwo [2018-12-09 09:57:02,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 09:57:02,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 09:57:02,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 09:57:02,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 09:57:02,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 09:57:02,491 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2018-12-09 09:57:02,491 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2018-12-09 09:57:02,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 09:57:02,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 09:57:02,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 09:57:02,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 09:57:02,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 09:57:02,584 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 09:57:02,593 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 09:57:02,602 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 09:57:02,606 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 09:57:02,637 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 09:57:02,646 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 09:57:02,652 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 09:57:02,655 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 09:57:02,672 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 09:57:02,673 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 09:57:02,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:57:02 BoogieIcfgContainer [2018-12-09 09:57:02,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 09:57:02,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 09:57:02,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 09:57:02,675 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 09:57:02,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 09:57:02" (1/3) ... [2018-12-09 09:57:02,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11768577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:57:02, skipping insertion in model container [2018-12-09 09:57:02,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:57:02" (2/3) ... [2018-12-09 09:57:02,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11768577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:57:02, skipping insertion in model container [2018-12-09 09:57:02,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:57:02" (3/3) ... [2018-12-09 09:57:02,677 INFO L112 eAbstractionObserver]: Analyzing ICFG float22_true-unreach-call_true-termination.i [2018-12-09 09:57:02,683 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 09:57:02,687 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-09 09:57:02,697 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-09 09:57:02,714 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 09:57:02,715 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 09:57:02,715 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 09:57:02,715 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 09:57:02,715 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 09:57:02,715 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 09:57:02,715 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 09:57:02,715 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 09:57:02,716 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 09:57:02,725 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-12-09 09:57:02,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 09:57:02,729 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:57:02,729 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:57:02,731 INFO L423 AbstractCegarLoop]: === Iteration 1 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:57:02,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:57:02,734 INFO L82 PathProgramCache]: Analyzing trace with hash 355812978, now seen corresponding path program 1 times [2018-12-09 09:57:02,736 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 09:57:02,737 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/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 [2018-12-09 09:57:02,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:57:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:57:02,834 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:57:02,873 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:02,877 INFO L478 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 [2018-12-09 09:57:02,882 INFO L478 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 [2018-12-09 09:57:02,883 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:02,888 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:02,893 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:02,894 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-12-09 09:57:02,919 INFO L478 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 19 treesize of output 16 [2018-12-09 09:57:02,922 INFO L478 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 16 treesize of output 19 [2018-12-09 09:57:02,929 INFO L478 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 19 treesize of output 21 [2018-12-09 09:57:02,938 INFO L478 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 21 treesize of output 24 [2018-12-09 09:57:02,938 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:02,947 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:02,955 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:02,965 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:02,988 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 09:57:02,988 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-12-09 09:57:03,042 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:03,043 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:03,045 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:03,046 INFO L478 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 [2018-12-09 09:57:03,047 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:03,072 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. [2018-12-09 09:57:03,073 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:65 [2018-12-09 09:57:03,119 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:03,148 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 74 [2018-12-09 09:57:03,162 INFO L478 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 21 treesize of output 24 [2018-12-09 09:57:03,178 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:03,181 INFO L478 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 24 treesize of output 32 [2018-12-09 09:57:03,193 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:03,195 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:03,196 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:03,207 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-12-09 09:57:03,224 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:03,226 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:03,228 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:03,246 INFO L478 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 28 treesize of output 46 [2018-12-09 09:57:03,247 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:03,272 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:03,291 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:03,312 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:03,348 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:03,392 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 09:57:03,392 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:95, output treesize:83 [2018-12-09 09:57:05,704 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:05,708 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:05,714 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 09:57:05,715 INFO L478 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 [2018-12-09 09:57:05,716 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:05,826 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:05,885 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-12-09 09:57:05,897 INFO L478 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 102 treesize of output 101 [2018-12-09 09:57:05,907 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:05,908 INFO L478 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 [2018-12-09 09:57:05,915 INFO L478 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 [2018-12-09 09:57:05,915 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:05,931 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:05,957 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:06,054 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:06,056 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-12-09 09:57:06,063 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-12-09 09:57:06,071 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:06,072 INFO L478 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 34 [2018-12-09 09:57:06,072 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:06,085 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:06,102 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:06,148 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-09 09:57:06,228 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-09 09:57:06,228 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:126, output treesize:203 [2018-12-09 09:57:07,830 INFO L478 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 82 treesize of output 66 [2018-12-09 09:57:07,835 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:07,836 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 39 treesize of output 12 [2018-12-09 09:57:07,837 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:07,851 INFO L478 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 [2018-12-09 09:57:07,851 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:07,858 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:07,872 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:07,872 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:113, output treesize:25 [2018-12-09 09:57:08,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:57:08,093 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 09:57:13,872 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:57:13,872 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/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 [2018-12-09 09:57:13,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:57:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:57:13,901 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:57:13,917 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:13,917 INFO L478 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 [2018-12-09 09:57:13,920 INFO L478 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 [2018-12-09 09:57:13,921 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:13,929 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:13,934 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:13,935 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:18 [2018-12-09 09:57:13,983 INFO L478 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 19 treesize of output 16 [2018-12-09 09:57:13,986 INFO L478 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 16 treesize of output 19 [2018-12-09 09:57:13,991 INFO L478 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 19 treesize of output 21 [2018-12-09 09:57:13,997 INFO L478 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 21 treesize of output 24 [2018-12-09 09:57:13,998 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:14,006 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:14,013 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:14,020 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:14,036 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 09:57:14,036 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-12-09 09:57:14,077 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:14,079 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:14,081 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:14,082 INFO L478 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 [2018-12-09 09:57:14,082 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:14,105 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. [2018-12-09 09:57:14,105 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:71, output treesize:66 [2018-12-09 09:57:14,186 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:14,204 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 74 [2018-12-09 09:57:14,213 INFO L478 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 21 treesize of output 24 [2018-12-09 09:57:14,224 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:14,228 INFO L478 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 24 treesize of output 32 [2018-12-09 09:57:14,239 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:14,241 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:14,243 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:14,253 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-12-09 09:57:14,264 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:14,266 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:14,267 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:14,282 INFO L478 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 28 treesize of output 46 [2018-12-09 09:57:14,282 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:14,306 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:14,325 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:14,343 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:14,374 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:14,424 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 09:57:14,424 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:98, output treesize:86 [2018-12-09 09:57:17,638 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:17,643 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:17,652 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 09:57:17,653 INFO L478 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 [2018-12-09 09:57:17,653 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:17,784 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:17,816 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-12-09 09:57:17,825 INFO L478 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 102 treesize of output 101 [2018-12-09 09:57:17,834 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:17,835 INFO L478 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 [2018-12-09 09:57:17,844 INFO L478 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 [2018-12-09 09:57:17,845 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:17,861 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:17,893 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:18,021 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:18,022 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-12-09 09:57:18,029 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-12-09 09:57:18,034 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:18,035 INFO L478 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 34 [2018-12-09 09:57:18,036 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:18,048 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:18,066 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:18,107 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-09 09:57:18,191 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-09 09:57:18,191 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:129, output treesize:209 [2018-12-09 09:57:18,732 INFO L478 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 80 treesize of output 64 [2018-12-09 09:57:18,736 INFO L478 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 [2018-12-09 09:57:18,736 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:18,754 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:18,754 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 37 treesize of output 12 [2018-12-09 09:57:18,755 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:18,761 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:18,773 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:18,773 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 8 variables, input treesize:109, output treesize:25 [2018-12-09 09:57:18,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:57:18,776 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 09:57:24,118 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 09:57:24,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2018-12-09 09:57:24,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 09:57:24,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 09:57:24,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=317, Unknown=4, NotChecked=0, Total=380 [2018-12-09 09:57:24,130 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 15 states. [2018-12-09 09:57:33,972 WARN L180 SmtUtils]: Spent 6.03 s on a formula simplification that was a NOOP. DAG size: 50 [2018-12-09 09:57:41,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:57:41,973 INFO L93 Difference]: Finished difference Result 104 states and 121 transitions. [2018-12-09 09:57:41,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 09:57:41,975 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 19 [2018-12-09 09:57:41,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:57:41,980 INFO L225 Difference]: With dead ends: 104 [2018-12-09 09:57:41,980 INFO L226 Difference]: Without dead ends: 49 [2018-12-09 09:57:41,982 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 24.8s TimeCoverageRelationStatistics Valid=80, Invalid=422, Unknown=4, NotChecked=0, Total=506 [2018-12-09 09:57:41,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-12-09 09:57:42,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-12-09 09:57:42,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-12-09 09:57:42,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-12-09 09:57:42,006 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 19 [2018-12-09 09:57:42,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:57:42,007 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-12-09 09:57:42,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 09:57:42,007 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-12-09 09:57:42,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-09 09:57:42,008 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:57:42,008 INFO L402 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] [2018-12-09 09:57:42,008 INFO L423 AbstractCegarLoop]: === Iteration 2 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:57:42,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:57:42,008 INFO L82 PathProgramCache]: Analyzing trace with hash -787169268, now seen corresponding path program 1 times [2018-12-09 09:57:42,009 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 09:57:42,009 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/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 [2018-12-09 09:57:42,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:57:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:57:42,153 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:57:42,157 INFO L478 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 54 treesize of output 48 [2018-12-09 09:57:42,159 INFO L478 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 48 treesize of output 41 [2018-12-09 09:57:42,163 INFO L478 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 41 treesize of output 37 [2018-12-09 09:57:42,174 INFO L478 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 28 treesize of output 15 [2018-12-09 09:57:42,175 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,176 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,178 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,180 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,181 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,182 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:54, output treesize:15 [2018-12-09 09:57:42,199 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:42,199 INFO L478 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 [2018-12-09 09:57:42,201 INFO L478 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 [2018-12-09 09:57:42,201 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,205 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,209 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,209 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-12-09 09:57:42,229 INFO L478 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 19 treesize of output 16 [2018-12-09 09:57:42,232 INFO L478 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 16 treesize of output 19 [2018-12-09 09:57:42,237 INFO L478 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 19 treesize of output 21 [2018-12-09 09:57:42,243 INFO L478 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 21 treesize of output 24 [2018-12-09 09:57:42,243 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,250 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,258 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,265 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,281 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 09:57:42,281 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-12-09 09:57:42,350 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:42,351 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:42,352 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:42,353 INFO L478 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 [2018-12-09 09:57:42,353 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,374 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. [2018-12-09 09:57:42,374 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:64 [2018-12-09 09:57:42,405 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:42,420 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 74 [2018-12-09 09:57:42,429 INFO L478 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 21 treesize of output 24 [2018-12-09 09:57:42,441 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:42,445 INFO L478 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 24 treesize of output 32 [2018-12-09 09:57:42,454 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:42,456 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:42,457 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:42,465 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-12-09 09:57:42,477 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:42,478 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:42,480 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:42,495 INFO L478 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 28 treesize of output 46 [2018-12-09 09:57:42,495 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,519 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,538 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,558 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,590 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:42,636 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 09:57:42,636 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:92, output treesize:80 [2018-12-09 09:57:49,202 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-12-09 09:57:49,216 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:49,219 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:49,222 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:49,224 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:49,227 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:49,228 INFO L478 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 [2018-12-09 09:57:49,228 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:49,351 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:49,413 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-12-09 09:57:49,426 INFO L478 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 102 treesize of output 101 [2018-12-09 09:57:49,438 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:49,439 INFO L478 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 [2018-12-09 09:57:49,448 INFO L478 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 [2018-12-09 09:57:49,448 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:49,466 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:49,495 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:49,611 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:49,612 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-12-09 09:57:49,619 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-12-09 09:57:49,625 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:49,626 INFO L478 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 34 [2018-12-09 09:57:49,626 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:49,637 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:49,653 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:49,702 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-09 09:57:49,785 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-09 09:57:49,785 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:123, output treesize:205 [2018-12-09 09:57:49,940 INFO L478 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 80 treesize of output 64 [2018-12-09 09:57:49,945 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:49,946 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 37 treesize of output 12 [2018-12-09 09:57:49,946 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:49,960 INFO L478 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 [2018-12-09 09:57:49,960 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:49,968 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:49,980 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:49,980 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:115, output treesize:25 [2018-12-09 09:57:50,012 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 09:57:50,012 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 09:57:54,911 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:57:54,911 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/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 [2018-12-09 09:57:54,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:57:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:57:54,956 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:57:54,965 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:54,965 INFO L478 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 [2018-12-09 09:57:54,968 INFO L478 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 [2018-12-09 09:57:54,968 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:54,972 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:54,976 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:54,976 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-12-09 09:57:54,986 INFO L478 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 19 treesize of output 16 [2018-12-09 09:57:54,989 INFO L478 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 16 treesize of output 19 [2018-12-09 09:57:54,994 INFO L478 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 19 treesize of output 21 [2018-12-09 09:57:55,000 INFO L478 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 21 treesize of output 24 [2018-12-09 09:57:55,000 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:55,008 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:55,015 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:55,023 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:55,042 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 09:57:55,042 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-12-09 09:57:57,152 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:57,153 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:57,154 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:57,155 INFO L478 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 [2018-12-09 09:57:57,155 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:57,178 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. [2018-12-09 09:57:57,179 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:64 [2018-12-09 09:57:57,187 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:57,205 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 74 [2018-12-09 09:57:57,215 INFO L478 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 21 treesize of output 24 [2018-12-09 09:57:57,226 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:57,230 INFO L478 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 24 treesize of output 32 [2018-12-09 09:57:57,241 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:57,244 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:57,246 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:57,255 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-12-09 09:57:57,267 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:57,269 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:57,271 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:57:57,293 INFO L478 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 28 treesize of output 46 [2018-12-09 09:57:57,294 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 09:57:57,323 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:57,344 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:57,364 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:57,396 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:57:57,440 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 09:57:57,440 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:92, output treesize:80 [2018-12-09 09:58:04,204 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:04,207 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:04,209 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:04,212 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:04,215 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:04,216 INFO L478 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 [2018-12-09 09:58:04,216 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:04,330 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:04,393 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-12-09 09:58:04,408 INFO L478 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 102 treesize of output 101 [2018-12-09 09:58:04,418 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:04,419 INFO L478 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 [2018-12-09 09:58:04,428 INFO L478 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 [2018-12-09 09:58:04,428 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:04,450 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:04,479 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:04,612 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:04,613 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-12-09 09:58:04,619 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-12-09 09:58:04,626 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:04,627 INFO L478 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 34 [2018-12-09 09:58:04,627 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:04,638 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:04,656 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:04,702 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-09 09:58:04,777 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-09 09:58:04,777 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:125, output treesize:205 [2018-12-09 09:58:04,901 INFO L478 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 80 treesize of output 64 [2018-12-09 09:58:04,906 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:04,907 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 37 treesize of output 12 [2018-12-09 09:58:04,907 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:04,920 INFO L478 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 [2018-12-09 09:58:04,921 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:04,927 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:04,940 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:04,941 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:115, output treesize:25 [2018-12-09 09:58:04,944 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 09:58:04,944 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 09:58:11,505 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 09:58:11,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 13 [2018-12-09 09:58:11,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-09 09:58:11,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-09 09:58:11,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=225, Unknown=6, NotChecked=0, Total=272 [2018-12-09 09:58:11,506 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 13 states. [2018-12-09 09:58:16,009 WARN L180 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 50 [2018-12-09 09:58:18,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:58:18,479 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-12-09 09:58:18,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 09:58:18,480 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 35 [2018-12-09 09:58:18,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:58:18,481 INFO L225 Difference]: With dead ends: 49 [2018-12-09 09:58:18,481 INFO L226 Difference]: Without dead ends: 47 [2018-12-09 09:58:18,481 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 57 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 31.3s TimeCoverageRelationStatistics Valid=59, Invalid=315, Unknown=6, NotChecked=0, Total=380 [2018-12-09 09:58:18,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-09 09:58:18,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-12-09 09:58:18,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-09 09:58:18,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2018-12-09 09:58:18,486 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 35 [2018-12-09 09:58:18,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:58:18,486 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2018-12-09 09:58:18,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-09 09:58:18,487 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2018-12-09 09:58:18,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 09:58:18,487 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:58:18,488 INFO L402 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] [2018-12-09 09:58:18,488 INFO L423 AbstractCegarLoop]: === Iteration 3 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:58:18,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:58:18,488 INFO L82 PathProgramCache]: Analyzing trace with hash -2050564504, now seen corresponding path program 1 times [2018-12-09 09:58:18,488 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 09:58:18,488 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/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 [2018-12-09 09:58:18,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:58:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:58:18,718 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:58:18,722 INFO L478 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 [2018-12-09 09:58:18,725 INFO L478 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 [2018-12-09 09:58:18,726 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:18,731 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:18,736 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:18,736 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:16, output treesize:17 [2018-12-09 09:58:19,412 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_returnsStructure_~#c~1.base_40| (_ BitVec 32))) (and (= |c_#valid| (store |c_old(#valid)| |v_returnsStructure_~#c~1.base_40| (_ bv0 1))) (= (_ bv0 1) (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_40|)))) is different from true [2018-12-09 09:58:19,419 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:19,420 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:19,423 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:19,423 INFO L478 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 [2018-12-09 09:58:19,424 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:19,435 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. [2018-12-09 09:58:19,435 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:23 [2018-12-09 09:58:21,450 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_returnsStructure_~#c~1.base_41| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_41|)) (= (store |c_old(#valid)| |v_returnsStructure_~#c~1.base_41| (_ bv0 1)) |c_#valid|))) is different from true [2018-12-09 09:58:21,457 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:21,458 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:21,461 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:21,462 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 09:58:21,462 INFO L478 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 [2018-12-09 09:58:21,462 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:21,479 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. [2018-12-09 09:58:21,480 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:30 [2018-12-09 09:58:21,498 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2018-12-09 09:58:21,501 INFO L478 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 15 treesize of output 10 [2018-12-09 09:58:21,501 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:21,516 INFO L478 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 0 case distinctions, treesize of input 11 treesize of output 7 [2018-12-09 09:58:21,517 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:21,528 INFO L478 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 10 treesize of output 4 [2018-12-09 09:58:21,528 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:21,533 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-09 09:58:21,547 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-09 09:58:21,547 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:37, output treesize:54 [2018-12-09 09:58:21,613 INFO L478 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 19 treesize of output 16 [2018-12-09 09:58:21,616 INFO L478 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 16 treesize of output 19 [2018-12-09 09:58:21,622 INFO L478 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 19 treesize of output 21 [2018-12-09 09:58:21,627 INFO L478 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 21 treesize of output 24 [2018-12-09 09:58:21,628 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:21,635 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:21,644 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:21,652 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:21,666 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 09:58:21,666 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-12-09 09:58:21,725 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:21,726 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:21,730 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:21,730 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 09:58:21,731 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 55 [2018-12-09 09:58:21,731 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:21,767 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. [2018-12-09 09:58:21,768 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:80, output treesize:76 [2018-12-09 09:58:21,829 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:21,836 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 61 [2018-12-09 09:58:21,843 INFO L478 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 [2018-12-09 09:58:21,844 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:21,857 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:21,882 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. [2018-12-09 09:58:21,882 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:88, output treesize:89 [2018-12-09 09:58:26,284 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 29 [2018-12-09 09:58:26,296 INFO L478 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 [2018-12-09 09:58:26,297 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:26,426 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:26,429 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:26,457 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 116 [2018-12-09 09:58:26,472 INFO L478 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 117 treesize of output 113 [2018-12-09 09:58:26,482 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:26,483 INFO L478 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 41 treesize of output 43 [2018-12-09 09:58:26,492 INFO L478 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 43 treesize of output 46 [2018-12-09 09:58:26,492 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:26,511 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:26,534 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:26,635 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:26,636 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-12-09 09:58:26,641 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-12-09 09:58:26,647 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:26,647 INFO L478 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 34 [2018-12-09 09:58:26,648 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:26,659 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:26,678 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:26,731 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-09 09:58:26,815 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-09 09:58:26,815 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:132, output treesize:213 [2018-12-09 09:58:29,009 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:29,011 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:29,011 INFO L478 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 82 treesize of output 70 [2018-12-09 09:58:29,026 INFO L478 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 [2018-12-09 09:58:29,027 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-12-09 09:58:29,056 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:29,056 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 39 treesize of output 12 [2018-12-09 09:58:29,057 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:29,065 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:29,078 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:29,078 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:102, output treesize:25 [2018-12-09 09:58:29,134 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 2 not checked. [2018-12-09 09:58:29,134 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 09:58:29,778 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:58:29,778 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/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 [2018-12-09 09:58:29,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:58:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:58:29,829 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:58:29,840 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:29,841 INFO L478 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 [2018-12-09 09:58:29,843 INFO L478 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 [2018-12-09 09:58:29,843 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:29,847 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:29,853 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:29,853 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:18 [2018-12-09 09:58:31,886 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_returnsStructure_~#c~1.base_44| (_ BitVec 32))) (and (= |c_#valid| (store |c_old(#valid)| |v_returnsStructure_~#c~1.base_44| (_ bv0 1))) (= (_ bv0 1) (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_44|)))) is different from true [2018-12-09 09:58:31,893 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:31,895 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:31,896 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:31,897 INFO L478 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 [2018-12-09 09:58:31,897 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:31,908 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. [2018-12-09 09:58:31,908 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:23 [2018-12-09 09:58:31,954 INFO L478 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 19 treesize of output 16 [2018-12-09 09:58:31,957 INFO L478 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 16 treesize of output 19 [2018-12-09 09:58:31,965 INFO L478 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 19 treesize of output 21 [2018-12-09 09:58:31,974 INFO L478 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 21 treesize of output 24 [2018-12-09 09:58:31,974 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:31,983 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:31,991 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:31,998 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:32,012 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 09:58:32,012 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:51 [2018-12-09 09:58:32,128 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:32,129 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:32,137 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:32,154 INFO L478 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 4 case distinctions, treesize of input 22 treesize of output 41 [2018-12-09 09:58:32,155 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 4 xjuncts. [2018-12-09 09:58:32,245 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-12-09 09:58:32,245 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:71, output treesize:211 [2018-12-09 09:58:32,749 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2018-12-09 09:58:33,028 WARN L180 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 92 [2018-12-09 09:58:33,032 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 78 treesize of output 64 [2018-12-09 09:58:33,037 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:33,038 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2018-12-09 09:58:33,038 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:33,059 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:33,158 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:33,160 INFO L478 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 80 treesize of output 70 [2018-12-09 09:58:33,167 INFO L478 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 [2018-12-09 09:58:33,167 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:33,193 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:33,193 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 39 treesize of output 12 [2018-12-09 09:58:33,193 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:33,204 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:33,276 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:33,278 INFO L478 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 80 treesize of output 70 [2018-12-09 09:58:33,286 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:33,286 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 39 treesize of output 12 [2018-12-09 09:58:33,286 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:33,304 INFO L478 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 [2018-12-09 09:58:33,304 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:33,316 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:33,365 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2018-12-09 09:58:33,365 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 15 variables, input treesize:300, output treesize:112 [2018-12-09 09:58:33,589 INFO L478 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 19 treesize of output 16 [2018-12-09 09:58:33,594 INFO L478 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 16 treesize of output 19 [2018-12-09 09:58:33,599 INFO L478 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 19 treesize of output 21 [2018-12-09 09:58:33,609 INFO L478 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 21 treesize of output 24 [2018-12-09 09:58:33,610 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:33,620 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:33,627 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:33,635 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:33,651 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 09:58:33,651 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-12-09 09:58:35,691 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:35,692 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:35,694 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:35,697 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:35,698 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 88 [2018-12-09 09:58:35,698 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:35,808 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:35,809 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:35,812 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:35,813 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:35,815 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:35,815 INFO L478 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 76 treesize of output 92 [2018-12-09 09:58:35,816 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:35,883 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-12-09 09:58:35,884 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:153, output treesize:142 [2018-12-09 09:58:36,061 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:36,069 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 87 treesize of output 88 [2018-12-09 09:58:36,073 INFO L478 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 [2018-12-09 09:58:36,073 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:36,109 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:36,210 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:36,222 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 84 [2018-12-09 09:58:36,233 INFO L478 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 [2018-12-09 09:58:36,233 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:36,262 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:36,319 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-09 09:58:36,319 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:171, output treesize:173 [2018-12-09 09:58:41,873 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:41,876 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:41,879 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:41,880 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 09:58:41,880 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 122 [2018-12-09 09:58:41,881 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:42,214 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:42,220 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:42,224 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:42,231 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:42,233 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:42,233 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 122 [2018-12-09 09:58:42,234 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:42,610 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:42,619 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:42,669 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 152 [2018-12-09 09:58:42,679 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:42,681 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:42,681 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 09:58:42,684 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:42,685 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 142 [2018-12-09 09:58:42,693 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2018-12-09 09:58:42,760 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:42,761 INFO L478 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 35 treesize of output 44 [2018-12-09 09:58:42,762 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:42,780 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:42,821 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:43,139 INFO L478 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 115 treesize of output 117 [2018-12-09 09:58:43,146 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:43,146 INFO L478 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 [2018-12-09 09:58:43,154 INFO L478 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 [2018-12-09 09:58:43,155 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:43,169 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:43,213 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:43,334 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-09 09:58:43,740 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:43,743 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:43,816 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 152 [2018-12-09 09:58:43,832 INFO L478 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 153 treesize of output 149 [2018-12-09 09:58:43,844 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:43,845 INFO L478 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 41 treesize of output 43 [2018-12-09 09:58:43,852 INFO L478 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 43 treesize of output 46 [2018-12-09 09:58:43,852 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:43,876 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:43,925 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:44,141 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:44,141 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 92 [2018-12-09 09:58:44,152 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-12-09 09:58:44,166 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:44,167 INFO L478 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 34 [2018-12-09 09:58:44,167 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:44,192 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:44,221 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:44,316 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-09 09:58:44,559 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-1 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 4 xjuncts. [2018-12-09 09:58:44,559 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 9 variables, input treesize:259, output treesize:393 [2018-12-09 09:58:46,892 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:46,893 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:46,894 INFO L478 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 80 treesize of output 68 [2018-12-09 09:58:46,904 INFO L478 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 [2018-12-09 09:58:46,905 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-12-09 09:58:46,930 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:58:46,930 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 37 treesize of output 12 [2018-12-09 09:58:46,931 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 09:58:46,938 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:46,948 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:58:46,948 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:94, output treesize:25 [2018-12-09 09:58:46,956 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 2 not checked. [2018-12-09 09:58:46,956 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 09:58:51,340 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 09:58:51,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 26 [2018-12-09 09:58:51,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-12-09 09:58:51,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-12-09 09:58:51,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=564, Unknown=6, NotChecked=150, Total=812 [2018-12-09 09:58:51,341 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand 26 states. [2018-12-09 09:59:02,199 WARN L180 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 51 DAG size of output: 36 [2018-12-09 09:59:14,494 WARN L180 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 50 [2018-12-09 09:59:27,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:59:27,097 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2018-12-09 09:59:27,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 09:59:27,098 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 46 [2018-12-09 09:59:27,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:59:27,098 INFO L225 Difference]: With dead ends: 47 [2018-12-09 09:59:27,099 INFO L226 Difference]: Without dead ends: 45 [2018-12-09 09:59:27,099 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 34.8s TimeCoverageRelationStatistics Valid=156, Invalid=906, Unknown=6, NotChecked=192, Total=1260 [2018-12-09 09:59:27,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-09 09:59:27,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-12-09 09:59:27,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-09 09:59:27,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2018-12-09 09:59:27,103 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 46 [2018-12-09 09:59:27,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:59:27,104 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2018-12-09 09:59:27,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-12-09 09:59:27,104 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2018-12-09 09:59:27,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-12-09 09:59:27,104 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:59:27,104 INFO L402 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] [2018-12-09 09:59:27,105 INFO L423 AbstractCegarLoop]: === Iteration 4 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:59:27,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:59:27,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1306260443, now seen corresponding path program 1 times [2018-12-09 09:59:27,105 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 09:59:27,105 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/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 [2018-12-09 09:59:27,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:59:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:59:27,387 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:59:27,397 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:27,398 INFO L478 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 [2018-12-09 09:59:27,400 INFO L478 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 [2018-12-09 09:59:27,400 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:27,407 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:27,414 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:27,414 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-12-09 09:59:27,430 INFO L478 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 19 treesize of output 16 [2018-12-09 09:59:27,433 INFO L478 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 16 treesize of output 19 [2018-12-09 09:59:27,439 INFO L478 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 19 treesize of output 21 [2018-12-09 09:59:27,447 INFO L478 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 21 treesize of output 24 [2018-12-09 09:59:27,448 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:27,455 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:27,462 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:27,469 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:27,486 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 09:59:27,486 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-12-09 09:59:27,508 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:27,509 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:27,510 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:27,511 INFO L478 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 [2018-12-09 09:59:27,511 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:27,533 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. [2018-12-09 09:59:27,533 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:63 [2018-12-09 09:59:27,562 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:27,570 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 61 [2018-12-09 09:59:27,577 INFO L478 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 [2018-12-09 09:59:27,577 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:27,591 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:27,612 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. [2018-12-09 09:59:27,612 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:80, output treesize:81 [2018-12-09 09:59:30,384 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:30,387 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:30,387 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 09:59:30,388 INFO L478 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 [2018-12-09 09:59:30,388 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:30,510 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:30,577 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-12-09 09:59:30,590 INFO L478 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 102 treesize of output 101 [2018-12-09 09:59:30,600 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:30,600 INFO L478 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 [2018-12-09 09:59:30,607 INFO L478 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 [2018-12-09 09:59:30,607 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:30,624 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:30,652 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:30,795 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:30,796 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-12-09 09:59:30,804 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-12-09 09:59:30,810 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:30,811 INFO L478 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 34 [2018-12-09 09:59:30,811 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:30,823 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:30,840 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:30,891 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-09 09:59:30,976 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-09 09:59:30,976 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:124, output treesize:203 [2018-12-09 09:59:31,839 INFO L478 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 80 treesize of output 64 [2018-12-09 09:59:31,844 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:31,845 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 37 treesize of output 12 [2018-12-09 09:59:31,845 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:31,861 INFO L478 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 [2018-12-09 09:59:31,861 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:31,868 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:31,881 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:31,881 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:100, output treesize:25 [2018-12-09 09:59:31,922 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-09 09:59:31,922 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 09:59:34,458 WARN L832 $PredicateComparison]: unable to prove that (forall ((|v_returnsField_~#c~0.base_26| (_ BitVec 32)) (|testThree_~#f2~2.offset| (_ BitVec 32)) (|v_q#valueAsBitvector_24| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsField_~#c~0.base_26|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsField_~#c~0.base_26| .cse1))) (store .cse0 |c_testThree_~#f2~2.base| (store (select .cse0 |c_testThree_~#f2~2.base|) |testThree_~#f2~2.offset| |v_q#valueAsBitvector_24|))) |c_testThree_~#f1~2.base|) |c_testThree_~#f1~2.offset|) |v_q#valueAsBitvector_24|)) (not (= (_ bv0 1) (select |c_#valid| |v_returnsField_~#c~0.base_26|))) (not (= (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp ((_ extract 31 31) |v_q#valueAsBitvector_24|) ((_ extract 30 23) |v_q#valueAsBitvector_24|) ((_ extract 22 0) |v_q#valueAsBitvector_24|))))))) is different from false [2018-12-09 09:59:34,473 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:59:34,474 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/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 [2018-12-09 09:59:34,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:59:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:59:34,529 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:59:34,538 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:34,539 INFO L478 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 [2018-12-09 09:59:34,541 INFO L478 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 [2018-12-09 09:59:34,542 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:34,545 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:34,549 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:34,549 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-12-09 09:59:34,557 INFO L478 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 19 treesize of output 16 [2018-12-09 09:59:34,560 INFO L478 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 16 treesize of output 19 [2018-12-09 09:59:34,565 INFO L478 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 19 treesize of output 21 [2018-12-09 09:59:34,571 INFO L478 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 21 treesize of output 24 [2018-12-09 09:59:34,572 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:34,579 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:34,588 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:34,595 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:34,613 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 09:59:34,613 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-12-09 09:59:34,722 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:34,723 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:34,725 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:34,725 INFO L478 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 [2018-12-09 09:59:34,725 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:34,746 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. [2018-12-09 09:59:34,746 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:63 [2018-12-09 09:59:34,751 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:34,758 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 61 [2018-12-09 09:59:34,764 INFO L478 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 [2018-12-09 09:59:34,765 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:34,778 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:34,797 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. [2018-12-09 09:59:34,798 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:80, output treesize:81 [2018-12-09 09:59:38,851 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:38,853 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:38,854 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 09:59:38,855 INFO L478 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 [2018-12-09 09:59:38,855 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:38,970 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:38,997 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-12-09 09:59:39,007 INFO L478 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 102 treesize of output 101 [2018-12-09 09:59:39,016 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:39,017 INFO L478 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 [2018-12-09 09:59:39,024 INFO L478 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 [2018-12-09 09:59:39,024 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:39,039 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:39,066 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:39,186 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:39,187 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-12-09 09:59:39,193 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-12-09 09:59:39,201 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:39,202 INFO L478 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 34 [2018-12-09 09:59:39,202 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:39,216 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:39,234 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:39,296 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-09 09:59:39,371 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-09 09:59:39,372 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:126, output treesize:203 [2018-12-09 09:59:39,725 INFO L478 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 82 treesize of output 66 [2018-12-09 09:59:39,729 INFO L478 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 [2018-12-09 09:59:39,730 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:39,750 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 09:59:39,751 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 39 treesize of output 12 [2018-12-09 09:59:39,751 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 09:59:39,758 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:39,771 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 09:59:39,771 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:100, output treesize:25 [2018-12-09 09:59:39,776 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-09 09:59:39,776 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 09:59:44,227 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 09:59:44,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-12-09 09:59:44,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 09:59:44,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 09:59:44,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=4, NotChecked=24, Total=210 [2018-12-09 09:59:44,228 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand 11 states. [2018-12-09 09:59:51,016 WARN L180 SmtUtils]: Spent 3.88 s on a formula simplification that was a NOOP. DAG size: 50 [2018-12-09 09:59:56,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:59:56,499 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2018-12-09 09:59:56,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 09:59:56,499 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 62 [2018-12-09 09:59:56,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:59:56,499 INFO L225 Difference]: With dead ends: 45 [2018-12-09 09:59:56,499 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 09:59:56,500 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 113 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=4, NotChecked=30, Total=306 [2018-12-09 09:59:56,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 09:59:56,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 09:59:56,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 09:59:56,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 09:59:56,500 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-12-09 09:59:56,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:59:56,500 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 09:59:56,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 09:59:56,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 09:59:56,501 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 09:59:56,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 09:59:56,703 INFO L448 ceAbstractionStarter]: For program point L130-1(line 130) no Hoare annotation was computed. [2018-12-09 09:59:56,703 INFO L448 ceAbstractionStarter]: For program point testOneFINAL(lines 127 136) no Hoare annotation was computed. [2018-12-09 09:59:56,703 INFO L448 ceAbstractionStarter]: For program point testOneEXIT(lines 127 136) no Hoare annotation was computed. [2018-12-09 09:59:56,704 INFO L444 ceAbstractionStarter]: At program point testOneENTRY(lines 127 136) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-12-09 09:59:56,704 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-12-09 09:59:56,704 INFO L448 ceAbstractionStarter]: For program point testOneErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133) no Hoare annotation was computed. [2018-12-09 09:59:56,704 INFO L448 ceAbstractionStarter]: For program point L133-1(line 133) no Hoare annotation was computed. [2018-12-09 09:59:56,704 INFO L444 ceAbstractionStarter]: At program point L131(line 131) the Hoare annotation is: (and (exists ((|v_returnsStructure_~#c~1.base_4| (_ BitVec 32))) (let ((.cse0 (select |#memory_int| |v_returnsStructure_~#c~1.base_4|))) (let ((.cse1 (select .cse0 (_ bv0 32)))) (and (= (_ bv0 32) (select .cse0 (_ bv8 32))) (= (_ bv0 1) (select |#valid| |v_returnsStructure_~#c~1.base_4|)) (= (_ bv0 32) (select .cse0 (_ bv4 32))) (= (_ bv0 32) .cse1) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (let ((.cse2 (select (select |#memory_int| |testOne_~#f1~0.base|) |testOne_~#f1~0.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))))) (not (= |testOne_~#f1~0.base| |testOne_~#f2~0.base|)) (= |testOne_~#f2~0.offset| (_ bv0 32)) (= (bvadd (select |#valid| |testOne_~#f1~0.base|) (_ bv1 1)) (_ bv0 1)) (not (= (_ bv0 1) (select |#valid| |testOne_~#f2~0.base|)))) [2018-12-09 09:59:56,704 INFO L444 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_~#f2~0.offset| (_ bv0 32)) (= (bvadd (select |#valid| |testOne_~#f1~0.base|) (_ bv1 1)) (_ bv0 1))) [2018-12-09 09:59:56,704 INFO L448 ceAbstractionStarter]: For program point L131-1(line 131) no Hoare annotation was computed. [2018-12-09 09:59:56,704 INFO L448 ceAbstractionStarter]: For program point L133-3(line 133) no Hoare annotation was computed. [2018-12-09 09:59:56,704 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 09:59:56,704 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-12-09 09:59:56,704 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 09:59:56,704 INFO L448 ceAbstractionStarter]: For program point L162-1(line 162) no Hoare annotation was computed. [2018-12-09 09:59:56,704 INFO L444 ceAbstractionStarter]: At program point L160(line 160) the Hoare annotation is: (and (exists ((|v_returnsField_~#c~0.base_20| (_ BitVec 32))) (let ((.cse0 (select |#memory_int| |v_returnsField_~#c~0.base_20|))) (let ((.cse1 (select .cse0 (_ bv0 32)))) (and (= (_ bv0 1) (select |#valid| |v_returnsField_~#c~0.base_20|)) (= (select .cse0 (_ bv4 32)) (_ bv0 32)) (= (select .cse0 (_ bv8 32)) (_ bv0 32)) (= (_ bv0 32) .cse1) (= (let ((.cse2 (select (select |#memory_int| |testThree_~#f1~2.base|) |testThree_~#f1~2.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))))) (= (_ 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|))) [2018-12-09 09:59:56,704 INFO L444 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|))) [2018-12-09 09:59:56,704 INFO L448 ceAbstractionStarter]: For program point L160-1(line 160) no Hoare annotation was computed. [2018-12-09 09:59:56,704 INFO L448 ceAbstractionStarter]: For program point L162-3(line 162) no Hoare annotation was computed. [2018-12-09 09:59:56,705 INFO L448 ceAbstractionStarter]: For program point L159-1(line 159) no Hoare annotation was computed. [2018-12-09 09:59:56,705 INFO L448 ceAbstractionStarter]: For program point testThreeFINAL(lines 156 165) no Hoare annotation was computed. [2018-12-09 09:59:56,705 INFO L448 ceAbstractionStarter]: For program point testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION(line 162) no Hoare annotation was computed. [2018-12-09 09:59:56,705 INFO L448 ceAbstractionStarter]: For program point testThreeEXIT(lines 156 165) no Hoare annotation was computed. [2018-12-09 09:59:56,705 INFO L444 ceAbstractionStarter]: At program point testThreeENTRY(lines 156 165) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-12-09 09:59:56,705 INFO L448 ceAbstractionStarter]: For program point L162(line 162) no Hoare annotation was computed. [2018-12-09 09:59:56,705 INFO L444 ceAbstractionStarter]: At program point returnsStructureENTRY(lines 116 124) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-12-09 09:59:56,705 INFO L448 ceAbstractionStarter]: For program point returnsStructureFINAL(lines 116 124) no Hoare annotation was computed. [2018-12-09 09:59:56,705 INFO L448 ceAbstractionStarter]: For program point returnsStructureEXIT(lines 116 124) no Hoare annotation was computed. [2018-12-09 09:59:56,705 INFO L448 ceAbstractionStarter]: For program point returnsFieldEXIT(lines 106 114) no Hoare annotation was computed. [2018-12-09 09:59:56,705 INFO L444 ceAbstractionStarter]: At program point returnsFieldENTRY(lines 106 114) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-12-09 09:59:56,705 INFO L448 ceAbstractionStarter]: For program point returnsFieldFINAL(lines 106 114) no Hoare annotation was computed. [2018-12-09 09:59:56,705 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 09:59:56,705 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 09:59:56,705 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 09:59:56,705 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 09:59:56,705 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 167 173) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-12-09 09:59:56,705 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 167 173) no Hoare annotation was computed. [2018-12-09 09:59:56,705 INFO L448 ceAbstractionStarter]: For program point L170(line 170) no Hoare annotation was computed. [2018-12-09 09:59:56,705 INFO L451 ceAbstractionStarter]: At program point L169(line 169) the Hoare annotation is: true [2018-12-09 09:59:56,705 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 167 173) no Hoare annotation was computed. [2018-12-09 09:59:56,705 INFO L451 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: true [2018-12-09 09:59:56,705 INFO L448 ceAbstractionStarter]: For program point testTwoEXIT(lines 139 153) no Hoare annotation was computed. [2018-12-09 09:59:56,706 INFO L448 ceAbstractionStarter]: For program point L147(line 147) no Hoare annotation was computed. [2018-12-09 09:59:56,706 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-12-09 09:59:56,706 INFO L448 ceAbstractionStarter]: For program point L145-1(line 145) no Hoare annotation was computed. [2018-12-09 09:59:56,706 INFO L444 ceAbstractionStarter]: At program point L143(line 143) the Hoare annotation is: (and (= (_ bv1 1) (select |#valid| |testTwo_~#f2~1.base|)) (not (= (_ bv0 1) (select |#valid| |testTwo_~#f1~1.base|))) (= (_ bv0 32) |testTwo_~#f2~1.offset|) (exists ((|v_returnsStructure_~#c~1.base_21| (_ BitVec 32))) (let ((.cse0 (select |#memory_int| |v_returnsStructure_~#c~1.base_21|))) (let ((.cse1 (select .cse0 (_ bv0 32)))) (and (= (select .cse0 (_ bv8 32)) (_ bv0 32)) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (let ((.cse2 (select (select |#memory_int| |testTwo_~#f1~1.base|) |testTwo_~#f1~1.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))) (= (select .cse0 (_ bv4 32)) (_ bv0 32)) (= (_ bv0 1) (select |#valid| |v_returnsStructure_~#c~1.base_21|)) (= .cse1 (_ bv0 32)))))) (not (= |testTwo_~#f1~1.base| |testTwo_~#f2~1.base|)) (= (_ bv0 32) |testTwo_~#f1~1.offset|)) [2018-12-09 09:59:56,706 INFO L448 ceAbstractionStarter]: For program point L143-1(line 143) no Hoare annotation was computed. [2018-12-09 09:59:56,706 INFO L444 ceAbstractionStarter]: At program point L145-3(line 145) the Hoare annotation is: (and (= (_ bv1 1) (select |#valid| |testTwo_~#f2~1.base|)) (not (= (_ bv0 1) (select |#valid| |testTwo_~#f1~1.base|))) (= (_ bv0 32) |testTwo_~#f2~1.offset|) (not (= |testTwo_~#f1~1.base| |testTwo_~#f2~1.base|)) (exists ((|v_returnsStructure_~#c~1.base_40| (_ BitVec 32))) (= (select |#valid| |v_returnsStructure_~#c~1.base_40|) (_ bv0 1))) (= (_ bv0 32) |testTwo_~#f1~1.offset|)) [2018-12-09 09:59:56,706 INFO L448 ceAbstractionStarter]: For program point testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION(line 150) no Hoare annotation was computed. [2018-12-09 09:59:56,706 INFO L448 ceAbstractionStarter]: For program point testTwoFINAL(lines 139 153) no Hoare annotation was computed. [2018-12-09 09:59:56,706 INFO L448 ceAbstractionStarter]: For program point testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2018-12-09 09:59:56,706 INFO L448 ceAbstractionStarter]: For program point L150(line 150) no Hoare annotation was computed. [2018-12-09 09:59:56,706 INFO L448 ceAbstractionStarter]: For program point L150-1(line 150) no Hoare annotation was computed. [2018-12-09 09:59:56,706 INFO L444 ceAbstractionStarter]: At program point L148(line 148) the Hoare annotation is: (let ((.cse3 (select |#valid| |testTwo_~#f1~1.base|))) (and (exists ((|v_returnsField_~#c~0.base_4| (_ BitVec 32))) (let ((.cse0 (select |#memory_int| |v_returnsField_~#c~0.base_4|))) (let ((.cse1 (select .cse0 (_ bv0 32)))) (and (= (select |#valid| |v_returnsField_~#c~0.base_4|) (_ bv0 1)) (= (select .cse0 (_ bv4 32)) (_ bv0 32)) (= (select .cse0 (_ bv8 32)) (_ bv0 32)) (= .cse1 (_ bv0 32)) (= (let ((.cse2 (select (select |#memory_int| |testTwo_~#f1~1.base|) |testTwo_~#f1~1.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))))) (= (_ bv1 1) .cse3) (= (_ bv0 32) |testTwo_~#f2~1.offset|) (not (= |testTwo_~#f1~1.base| |testTwo_~#f2~1.base|)) (= .cse3 (select |#valid| |testTwo_~#f2~1.base|)) (= (_ bv0 32) |testTwo_~#f1~1.offset|))) [2018-12-09 09:59:56,706 INFO L448 ceAbstractionStarter]: For program point L148-1(line 148) no Hoare annotation was computed. [2018-12-09 09:59:56,706 INFO L448 ceAbstractionStarter]: For program point L150-3(line 150) no Hoare annotation was computed. [2018-12-09 09:59:56,706 INFO L444 ceAbstractionStarter]: At program point testTwoENTRY(lines 139 153) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-12-09 09:59:56,706 INFO L444 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|)) [2018-12-09 09:59:56,706 INFO L448 ceAbstractionStarter]: For program point L142-1(line 142) no Hoare annotation was computed. [2018-12-09 09:59:56,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 09:59:56 BoogieIcfgContainer [2018-12-09 09:59:56,708 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 09:59:56,708 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 09:59:56,709 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 09:59:56,709 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 09:59:56,709 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:57:02" (3/4) ... [2018-12-09 09:59:56,711 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 09:59:56,715 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure testOne [2018-12-09 09:59:56,715 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 09:59:56,716 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure testThree [2018-12-09 09:59:56,716 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure returnsStructure [2018-12-09 09:59:56,716 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure returnsField [2018-12-09 09:59:56,716 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 09:59:56,716 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure testTwo [2018-12-09 09:59:56,719 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2018-12-09 09:59:56,719 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-09 09:59:56,719 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 09:59:56,720 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 09:59:56,745 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_093f2cfa-a363-418d-bcf8-81ec93118b53/bin-2019/utaipan/witness.graphml [2018-12-09 09:59:56,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 09:59:56,746 INFO L168 Benchmark]: Toolchain (without parser) took 174546.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.8 MB). Free memory was 944.7 MB in the beginning and 947.3 MB in the end (delta: -2.5 MB). Peak memory consumption was 176.2 MB. Max. memory is 11.5 GB. [2018-12-09 09:59:56,746 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 09:59:56,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.21 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 09:59:56,746 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.74 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 09:59:56,746 INFO L168 Benchmark]: Boogie Preprocessor took 23.24 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 09:59:56,746 INFO L168 Benchmark]: RCFGBuilder took 246.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-12-09 09:59:56,747 INFO L168 Benchmark]: TraceAbstraction took 174034.82 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 37.2 MB). Free memory was 1.1 GB in the beginning and 954.5 MB in the end (delta: 150.9 MB). Peak memory consumption was 188.1 MB. Max. memory is 11.5 GB. [2018-12-09 09:59:56,747 INFO L168 Benchmark]: Witness Printer took 36.66 ms. Allocated memory is still 1.2 GB. Free memory was 954.5 MB in the beginning and 947.3 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2018-12-09 09:59:56,747 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 185.21 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 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 17.74 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.24 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 246.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 174034.82 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 37.2 MB). Free memory was 1.1 GB in the beginning and 954.5 MB in the end (delta: 150.9 MB). Peak memory consumption was 188.1 MB. Max. memory is 11.5 GB. * Witness Printer took 36.66 ms. Allocated memory is still 1.2 GB. Free memory was 954.5 MB in the beginning and 947.3 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. 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, 173.9s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 72.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 146 SDtfs, 17 SDslu, 942 SDs, 0 SdLazy, 982 SolverSat, 132 SolverUnsat, 19 SolverUnknown, 0 SolverNotchecked, 49.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 364 GetRequests, 260 SyntacticMatches, 15 SemanticMatches, 89 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 109.8s 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, 483 HoareAnnotationTreeSize, 39 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 31 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 99.8s InterpolantComputationTime, 324 NumberOfCodeBlocks, 324 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 316 ConstructedInterpolants, 74 QuantifiedInterpolants, 209127 SizeOfPredicates, 85 NumberOfNonLiveVariables, 1388 ConjunctsInSsa, 288 ConjunctsInUnsatCore, 8 InterpolantComputations, 0 PerfectInterpolantSequences, 136/156 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...