./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer --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 Automizer --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_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer --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 Automizer --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 0.1.23-5842f4b [2018-11-18 08:39:11,235 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:39:11,236 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:39:11,243 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:39:11,243 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:39:11,244 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:39:11,244 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:39:11,245 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:39:11,246 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:39:11,247 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:39:11,247 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:39:11,247 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:39:11,248 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:39:11,249 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:39:11,249 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:39:11,250 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:39:11,250 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:39:11,252 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:39:11,253 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:39:11,254 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:39:11,255 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:39:11,255 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:39:11,257 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:39:11,257 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:39:11,257 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:39:11,258 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:39:11,258 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:39:11,259 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:39:11,259 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:39:11,260 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:39:11,260 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:39:11,261 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:39:11,261 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:39:11,261 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:39:11,262 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:39:11,262 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:39:11,262 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 08:39:11,269 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:39:11,269 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:39:11,270 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 08:39:11,270 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 08:39:11,271 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:39:11,271 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:39:11,271 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:39:11,271 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:39:11,271 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:39:11,271 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:39:11,272 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:39:11,272 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:39:11,272 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 08:39:11,272 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 08:39:11,272 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 08:39:11,272 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:39:11,273 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:39:11,273 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:39:11,273 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 08:39:11,273 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:39:11,273 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:39:11,273 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 08:39:11,273 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 08:39:11,274 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 08:39:11,274 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:39:11,274 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 08:39:11,274 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 08:39:11,274 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 08:39:11,274 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 08:39:11,275 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 08:39:11,275 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_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08947af3b6f9b8a272faa540a059213a9b1de888 [2018-11-18 08:39:11,296 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:39:11,304 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:39:11,307 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:39:11,308 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:39:11,308 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:39:11,308 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-11-18 08:39:11,343 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/data/f8ef4760f/99100ea1f3d149548285ebe1391e7f1f/FLAGd3f18e73c [2018-11-18 08:39:11,729 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:39:11,729 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-11-18 08:39:11,733 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/data/f8ef4760f/99100ea1f3d149548285ebe1391e7f1f/FLAGd3f18e73c [2018-11-18 08:39:11,741 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/data/f8ef4760f/99100ea1f3d149548285ebe1391e7f1f [2018-11-18 08:39:11,743 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:39:11,744 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 08:39:11,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:39:11,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:39:11,747 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:39:11,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:39:11" (1/1) ... [2018-11-18 08:39:11,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a8985a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:11, skipping insertion in model container [2018-11-18 08:39:11,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:39:11" (1/1) ... [2018-11-18 08:39:11,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:39:11,770 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:39:11,873 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:39:11,875 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:39:11,891 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:39:11,903 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:39:11,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:11 WrapperNode [2018-11-18 08:39:11,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:39:11,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:39:11,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:39:11,904 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:39:11,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:11" (1/1) ... [2018-11-18 08:39:11,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:11" (1/1) ... [2018-11-18 08:39:11,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:11" (1/1) ... [2018-11-18 08:39:11,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:11" (1/1) ... [2018-11-18 08:39:11,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:11" (1/1) ... [2018-11-18 08:39:11,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:11" (1/1) ... [2018-11-18 08:39:11,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:11" (1/1) ... [2018-11-18 08:39:11,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:39:11,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:39:11,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:39:11,975 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:39:11,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 08:39:12,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 08:39:12,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:39:12,023 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2018-11-18 08:39:12,023 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2018-11-18 08:39:12,023 INFO L138 BoogieDeclarations]: Found implementation of procedure testOne [2018-11-18 08:39:12,023 INFO L138 BoogieDeclarations]: Found implementation of procedure testTwo [2018-11-18 08:39:12,023 INFO L138 BoogieDeclarations]: Found implementation of procedure testThree [2018-11-18 08:39:12,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 08:39:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 08:39:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2018-11-18 08:39:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 08:39:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 08:39:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 08:39:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 08:39:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2018-11-18 08:39:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 08:39:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure testOne [2018-11-18 08:39:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 08:39:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure testTwo [2018-11-18 08:39:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure testThree [2018-11-18 08:39:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 08:39:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 08:39:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:39:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 08:39:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 08:39:12,263 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:39:12,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:39:12 BoogieIcfgContainer [2018-11-18 08:39:12,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:39:12,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 08:39:12,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 08:39:12,266 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 08:39:12,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:39:11" (1/3) ... [2018-11-18 08:39:12,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630814df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:39:12, skipping insertion in model container [2018-11-18 08:39:12,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:11" (2/3) ... [2018-11-18 08:39:12,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630814df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:39:12, skipping insertion in model container [2018-11-18 08:39:12,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:39:12" (3/3) ... [2018-11-18 08:39:12,271 INFO L112 eAbstractionObserver]: Analyzing ICFG float22_true-unreach-call_true-termination.i [2018-11-18 08:39:12,279 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 08:39:12,286 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 08:39:12,299 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 08:39:12,324 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:39:12,324 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 08:39:12,325 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 08:39:12,325 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 08:39:12,325 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:39:12,325 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:39:12,325 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 08:39:12,325 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:39:12,325 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 08:39:12,340 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-11-18 08:39:12,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 08:39:12,345 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:39:12,346 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:39:12,347 INFO L423 AbstractCegarLoop]: === Iteration 1 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:39:12,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:39:12,352 INFO L82 PathProgramCache]: Analyzing trace with hash -250275214, now seen corresponding path program 1 times [2018-11-18 08:39:12,353 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:39:12,354 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:39:12,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:39:12,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:39:12,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:39:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:39:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:39:12,504 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 08:39:12,513 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-18 08:39:12,514 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-11-18 08:39:12,514 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-18 08:39:12,514 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-11-18 08:39:12,514 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-18 08:39:12,514 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-11-18 08:39:12,515 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-18 08:39:12,515 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-11-18 08:39:12,515 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-18 08:39:12,515 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-11-18 08:39:12,515 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-18 08:39:12,516 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-11-18 08:39:12,516 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled [2018-11-18 08:39:12,516 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled [2018-11-18 08:39:12,516 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled [2018-11-18 08:39:12,517 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-18 08:39:12,517 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-11-18 08:39:12,517 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-18 08:39:12,517 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-11-18 08:39:12,517 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-18 08:39:12,518 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-11-18 08:39:12,518 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-18 08:39:12,518 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-11-18 08:39:12,518 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-18 08:39:12,518 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-11-18 08:39:12,519 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-18 08:39:12,519 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-11-18 08:39:12,519 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled [2018-11-18 08:39:12,519 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled [2018-11-18 08:39:12,519 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled [2018-11-18 08:39:12,524 WARN L1239 BoogieBacktranslator]: unknown boogie variable #res.ieee.mantissa [2018-11-18 08:39:12,524 WARN L1239 BoogieBacktranslator]: unknown boogie variable #res.ieee.exponent [2018-11-18 08:39:12,524 WARN L1239 BoogieBacktranslator]: unknown boogie variable #res.ieee.negative [2018-11-18 08:39:12,524 WARN L1239 BoogieBacktranslator]: unknown boogie variable #res!f [2018-11-18 08:39:12,525 WARN L1239 BoogieBacktranslator]: unknown boogie variable #res!f [2018-11-18 08:39:12,525 WARN L1239 BoogieBacktranslator]: unknown boogie variable #res.ieee.mantissa [2018-11-18 08:39:12,525 WARN L1239 BoogieBacktranslator]: unknown boogie variable #res.ieee.exponent [2018-11-18 08:39:12,525 WARN L1239 BoogieBacktranslator]: unknown boogie variable #res.ieee.negative [2018-11-18 08:39:12,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:39:12 BoogieIcfgContainer [2018-11-18 08:39:12,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 08:39:12,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:39:12,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:39:12,533 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:39:12,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:39:12" (3/4) ... [2018-11-18 08:39:12,536 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 08:39:12,536 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:39:12,537 INFO L168 Benchmark]: Toolchain (without parser) took 793.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -103.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-11-18 08:39:12,539 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:39:12,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.42 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-18 08:39:12,539 INFO L168 Benchmark]: Boogie Preprocessor took 70.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2018-11-18 08:39:12,540 INFO L168 Benchmark]: RCFGBuilder took 288.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-11-18 08:39:12,540 INFO L168 Benchmark]: TraceAbstraction took 268.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-18 08:39:12,540 INFO L168 Benchmark]: Witness Printer took 3.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:39:12,542 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 159.42 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 288.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 268.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.73 ms. Allocated memory is still 1.1 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.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 #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 #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.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 #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 #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.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable #res!f - GenericResult: Unfinished Backtranslation unknown boogie variable #res!f - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.negative * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 133]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 119. Possible FailurePath: [L168] CALL testOne() [L128] FCALL ieee754_float f1, f2; VAL [f1={19:0}, f2={15:0}] [L130] CALL, EXPR returnsStructure(0) VAL [\old(index)=0] [L117] FCALL ieee754_float c; [L119] FCALL c.ieee.negative = index & 0x1 [L120] FCALL c.ieee.exponent = 0 [L121] FCALL c.ieee.mantissa = 0 [L123] FCALL return c; [L123] RET return c; VAL [\old(index)=0, index=0, unknown-#res!f-unknown=16, unknown-#res.ieee.exponent-unknown=0, unknown-#res.ieee.mantissa-unknown=0, unknown-#res.ieee.negative-unknown=0] [L130] EXPR returnsStructure(0) VAL [f1={19:0}, f2={15:0}, returnsStructure(0)=0returnsStructure(0)=0returnsStructure(0)=0returnsStructure(0)=16] [L130] FCALL f1 = returnsStructure(0) [L131] CALL, EXPR returnsStructure(1) VAL [\old(index)=1] [L117] FCALL ieee754_float c; [L119] FCALL c.ieee.negative = index & 0x1 [L120] FCALL c.ieee.exponent = 0 [L121] FCALL c.ieee.mantissa = 0 [L123] FCALL return c; [L123] RET return c; VAL [\old(index)=1, index=1, unknown-#res!f-unknown=14, unknown-#res.ieee.exponent-unknown=0, unknown-#res.ieee.mantissa-unknown=0, unknown-#res.ieee.negative-unknown=0] [L131] EXPR returnsStructure(1) VAL [f1={19:0}, f2={15:0}, returnsStructure(1)=0returnsStructure(1)=0returnsStructure(1)=0returnsStructure(1)=14] [L131] FCALL f2 = returnsStructure(1) [L133] EXPR, FCALL f1.ieee.negative [L133] EXPR, FCALL f2.ieee.negative VAL [f1={19:0}, f1.ieee.negative=0, f2={15:0}, f2.ieee.negative=0] [L133] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L133] __VERIFIER_error() VAL [f1={19:0}, f2={15:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 59 locations, 4 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 08:39:13,977 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:39:13,978 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:39:13,985 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:39:13,985 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:39:13,986 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:39:13,987 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:39:13,988 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:39:13,989 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:39:13,989 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:39:13,990 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:39:13,990 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:39:13,991 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:39:13,992 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:39:13,992 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:39:13,993 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:39:13,993 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:39:13,995 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:39:13,996 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:39:13,997 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:39:13,997 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:39:13,998 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:39:14,000 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:39:14,000 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:39:14,000 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:39:14,001 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:39:14,002 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:39:14,002 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:39:14,003 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:39:14,003 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:39:14,003 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:39:14,004 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:39:14,004 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:39:14,004 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:39:14,005 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:39:14,005 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:39:14,006 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 08:39:14,016 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:39:14,016 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:39:14,016 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 08:39:14,016 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 08:39:14,017 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:39:14,017 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:39:14,017 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:39:14,017 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:39:14,017 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:39:14,017 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:39:14,018 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:39:14,018 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 08:39:14,018 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 08:39:14,018 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 08:39:14,018 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 08:39:14,018 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 08:39:14,018 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:39:14,018 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:39:14,018 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:39:14,019 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 08:39:14,019 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:39:14,019 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:39:14,019 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 08:39:14,019 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 08:39:14,019 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 08:39:14,019 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:39:14,020 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 08:39:14,020 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 08:39:14,020 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 08:39:14,020 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 08:39:14,020 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 08:39:14,020 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 08:39:14,020 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_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08947af3b6f9b8a272faa540a059213a9b1de888 [2018-11-18 08:39:14,047 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:39:14,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:39:14,057 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:39:14,058 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:39:14,058 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:39:14,058 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-11-18 08:39:14,093 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/data/58197b267/fdfbb2b6f84c461c87c323543fee149b/FLAG946b6b3d9 [2018-11-18 08:39:14,482 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:39:14,482 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-11-18 08:39:14,487 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/data/58197b267/fdfbb2b6f84c461c87c323543fee149b/FLAG946b6b3d9 [2018-11-18 08:39:14,496 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/data/58197b267/fdfbb2b6f84c461c87c323543fee149b [2018-11-18 08:39:14,498 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:39:14,498 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 08:39:14,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:39:14,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:39:14,501 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:39:14,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:39:14" (1/1) ... [2018-11-18 08:39:14,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b0c534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:14, skipping insertion in model container [2018-11-18 08:39:14,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:39:14" (1/1) ... [2018-11-18 08:39:14,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:39:14,524 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:39:14,645 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:39:14,649 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:39:14,673 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:39:14,689 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:39:14,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:14 WrapperNode [2018-11-18 08:39:14,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:39:14,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:39:14,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:39:14,690 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:39:14,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:14" (1/1) ... [2018-11-18 08:39:14,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:14" (1/1) ... [2018-11-18 08:39:14,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:14" (1/1) ... [2018-11-18 08:39:14,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:14" (1/1) ... [2018-11-18 08:39:14,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:14" (1/1) ... [2018-11-18 08:39:14,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:14" (1/1) ... [2018-11-18 08:39:14,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:14" (1/1) ... [2018-11-18 08:39:14,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:39:14,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:39:14,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:39:14,728 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:39:14,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 08:39:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 08:39:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:39:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2018-11-18 08:39:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2018-11-18 08:39:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure testOne [2018-11-18 08:39:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure testTwo [2018-11-18 08:39:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure testThree [2018-11-18 08:39:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 08:39:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 08:39:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2018-11-18 08:39:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 08:39:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 08:39:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 08:39:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 08:39:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2018-11-18 08:39:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 08:39:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure testOne [2018-11-18 08:39:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 08:39:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure testTwo [2018-11-18 08:39:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure testThree [2018-11-18 08:39:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 08:39:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 08:39:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:39:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 08:39:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-18 08:39:14,905 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 08:39:14,922 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 08:39:14,972 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 08:39:14,978 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 08:39:14,999 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 08:39:15,009 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 08:39:15,015 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 08:39:15,021 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 08:39:15,048 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:39:15,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:39:15 BoogieIcfgContainer [2018-11-18 08:39:15,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:39:15,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 08:39:15,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 08:39:15,051 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 08:39:15,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:39:14" (1/3) ... [2018-11-18 08:39:15,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a64a130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:39:15, skipping insertion in model container [2018-11-18 08:39:15,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:14" (2/3) ... [2018-11-18 08:39:15,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a64a130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:39:15, skipping insertion in model container [2018-11-18 08:39:15,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:39:15" (3/3) ... [2018-11-18 08:39:15,053 INFO L112 eAbstractionObserver]: Analyzing ICFG float22_true-unreach-call_true-termination.i [2018-11-18 08:39:15,059 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 08:39:15,063 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 08:39:15,072 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 08:39:15,090 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:39:15,090 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 08:39:15,090 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 08:39:15,090 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 08:39:15,091 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:39:15,091 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:39:15,091 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 08:39:15,091 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:39:15,091 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 08:39:15,102 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-11-18 08:39:15,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 08:39:15,106 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:39:15,106 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:39:15,108 INFO L423 AbstractCegarLoop]: === Iteration 1 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:39:15,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:39:15,112 INFO L82 PathProgramCache]: Analyzing trace with hash -250275214, now seen corresponding path program 1 times [2018-11-18 08:39:15,114 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:39:15,115 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 08:39:15,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:39:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:39:15,215 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:39:15,271 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:15,275 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-18 08:39:15,283 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-18 08:39:15,284 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:15,290 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:15,301 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:15,301 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-11-18 08:39:15,343 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-18 08:39:15,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-18 08:39:15,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-18 08:39:15,365 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 08:39:15,365 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:15,373 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:15,387 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:15,398 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:15,423 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. [2018-11-18 08:39:15,423 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-11-18 08:39:15,534 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:15,536 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:15,538 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:15,540 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2018-11-18 08:39:15,540 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:15,571 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 08:39:15,571 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:65 [2018-11-18 08:39:15,609 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:15,631 INFO L477 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 [2018-11-18 08:39:15,641 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 08:39:15,652 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:15,655 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2018-11-18 08:39:15,667 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:15,669 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:15,670 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:15,678 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-11-18 08:39:15,696 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:15,699 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:15,701 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:15,720 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 46 [2018-11-18 08:39:15,720 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:15,746 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:15,767 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:15,786 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:15,824 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:15,864 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. [2018-11-18 08:39:15,865 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:95, output treesize:83 [2018-11-18 08:39:19,138 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:19,140 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:19,143 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 08:39:19,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2018-11-18 08:39:19,145 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:19,250 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:19,323 INFO L477 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 [2018-11-18 08:39:19,336 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-11-18 08:39:19,344 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:19,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-18 08:39:19,354 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-11-18 08:39:19,355 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:19,374 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:19,398 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:19,491 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:19,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-18 08:39:19,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-18 08:39:19,513 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:19,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-11-18 08:39:19,515 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:19,529 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:19,545 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:19,591 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:39:19,673 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. [2018-11-18 08:39:19,673 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:126, output treesize:203 [2018-11-18 08:39:19,859 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 66 [2018-11-18 08:39:19,864 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:19,865 INFO L477 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 [2018-11-18 08:39:19,866 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:19,881 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-18 08:39:19,882 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:19,888 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:19,899 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:19,900 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:113, output treesize:25 [2018-11-18 08:39:20,017 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:39:20,017 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:39:20,621 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:39:20,622 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:39:20,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:39:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:39:20,652 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:39:20,665 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:20,666 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-18 08:39:20,682 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-18 08:39:20,683 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:20,690 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:20,697 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:20,697 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:18 [2018-11-18 08:39:20,741 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-18 08:39:20,743 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-18 08:39:20,748 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-18 08:39:20,753 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 08:39:20,754 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:20,761 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:20,768 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:20,775 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:20,790 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. [2018-11-18 08:39:20,790 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-11-18 08:39:20,818 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:20,819 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:20,820 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:20,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-18 08:39:20,822 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:20,843 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 08:39:20,843 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:71, output treesize:66 [2018-11-18 08:39:20,969 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:20,985 INFO L477 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 [2018-11-18 08:39:20,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 08:39:21,006 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:21,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2018-11-18 08:39:21,020 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:21,022 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:21,024 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:21,034 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-11-18 08:39:21,045 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:21,046 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:21,048 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:21,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 46 [2018-11-18 08:39:21,061 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:21,085 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:21,102 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:21,122 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:21,154 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:21,197 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. [2018-11-18 08:39:21,198 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:98, output treesize:86 [2018-11-18 08:39:23,642 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:23,645 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:23,649 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 08:39:23,650 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2018-11-18 08:39:23,651 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:23,772 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:23,794 INFO L477 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 [2018-11-18 08:39:23,805 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-11-18 08:39:23,813 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:23,814 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-18 08:39:23,826 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-11-18 08:39:23,827 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:23,852 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:23,885 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:24,030 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:24,031 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-18 08:39:24,036 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-18 08:39:24,042 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:24,043 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-11-18 08:39:24,043 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:24,059 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:24,073 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:24,121 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:39:24,192 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. [2018-11-18 08:39:24,192 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:129, output treesize:209 [2018-11-18 08:39:24,425 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2018-11-18 08:39:24,429 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-18 08:39:24,429 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:24,449 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:24,450 INFO L477 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 [2018-11-18 08:39:24,450 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:24,458 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:24,472 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:24,473 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 8 variables, input treesize:109, output treesize:25 [2018-11-18 08:39:24,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:39:24,475 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:39:32,678 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:39:32,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2018-11-18 08:39:32,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 08:39:32,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 08:39:32,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=317, Unknown=4, NotChecked=0, Total=380 [2018-11-18 08:39:32,690 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 15 states. [2018-11-18 08:39:37,897 WARN L854 $PredicateComparison]: unable to prove that (and (exists ((|v_returnsStructure_~#c~1.base_5| (_ BitVec 32))) (and (= (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_5|) (_ bv0 1)) (= |c_returnsStructure_#res.f| (let ((.cse0 (select (select |c_#memory_int| |v_returnsStructure_~#c~1.base_5|) (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (= (store |c_old(#memory_int)| |v_returnsStructure_~#c~1.base_5| (store (store (store (select |c_old(#memory_int)| |v_returnsStructure_~#c~1.base_5|) (_ bv0 32) (bvand (_ bv1 32) |c_returnsStructure_#in~index|)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32))) |c_#memory_int|))) (exists ((|v_returnsStructure_~#c~1.base_4| (_ BitVec 32))) (let ((.cse1 (select |c_#memory_int| |v_returnsStructure_~#c~1.base_4|))) (let ((.cse2 (select .cse1 (_ bv0 32)))) (and (= |c_#valid| (store |c_old(#valid)| |v_returnsStructure_~#c~1.base_4| (_ bv0 1))) (= (_ bv0 32) (select .cse1 (_ bv8 32))) (= |c_returnsStructure_#res.f| (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (= (bvand (_ bv1 32) |c_returnsStructure_#in~index|) .cse2) (= (_ bv0 32) (select .cse1 (_ bv4 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_4|))))))) is different from true [2018-11-18 08:39:41,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:39:41,851 INFO L93 Difference]: Finished difference Result 104 states and 121 transitions. [2018-11-18 08:39:41,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 08:39:41,852 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 19 [2018-11-18 08:39:41,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:39:41,858 INFO L225 Difference]: With dead ends: 104 [2018-11-18 08:39:41,858 INFO L226 Difference]: Without dead ends: 49 [2018-11-18 08:39:41,860 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=61, Invalid=318, Unknown=5, NotChecked=36, Total=420 [2018-11-18 08:39:41,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-18 08:39:41,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-11-18 08:39:41,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-18 08:39:41,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-11-18 08:39:41,886 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 19 [2018-11-18 08:39:41,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:39:41,887 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-11-18 08:39:41,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 08:39:41,888 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-11-18 08:39:41,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 08:39:41,889 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:39:41,889 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:39:41,890 INFO L423 AbstractCegarLoop]: === Iteration 2 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:39:41,890 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:39:41,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1767086068, now seen corresponding path program 1 times [2018-11-18 08:39:41,891 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:39:41,891 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 08:39:41,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:39:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:39:42,037 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:39:42,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 48 [2018-11-18 08:39:42,042 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2018-11-18 08:39:42,048 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2018-11-18 08:39:42,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2018-11-18 08:39:42,059 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:42,064 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:42,065 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:42,066 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:42,068 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:42,068 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:54, output treesize:15 [2018-11-18 08:39:42,083 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:42,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-18 08:39:42,088 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-18 08:39:42,089 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:42,094 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:42,097 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:42,098 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-11-18 08:39:42,122 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-18 08:39:42,124 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-18 08:39:42,128 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-18 08:39:42,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 08:39:42,134 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:42,141 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:42,148 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:42,155 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:42,169 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. [2018-11-18 08:39:42,169 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-11-18 08:39:44,211 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:44,212 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:44,213 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:44,214 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2018-11-18 08:39:44,214 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:44,233 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 08:39:44,234 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:64 [2018-11-18 08:39:44,267 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:44,286 INFO L477 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 [2018-11-18 08:39:44,295 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 08:39:44,305 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:44,309 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2018-11-18 08:39:44,318 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:44,320 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:44,321 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:44,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-11-18 08:39:44,338 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:44,340 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:44,341 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:44,354 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 46 [2018-11-18 08:39:44,354 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:44,375 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:44,392 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:44,409 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:44,436 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:44,475 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. [2018-11-18 08:39:44,475 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:92, output treesize:80 [2018-11-18 08:39:49,974 WARN L180 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-11-18 08:39:49,986 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:49,989 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:49,991 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:49,993 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:49,996 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:49,996 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2018-11-18 08:39:49,997 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:50,096 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:50,149 INFO L477 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 [2018-11-18 08:39:50,162 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-11-18 08:39:50,173 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:50,174 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-18 08:39:50,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-11-18 08:39:50,180 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:50,194 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:50,227 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:50,361 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:50,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-18 08:39:50,368 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-18 08:39:50,375 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:50,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-11-18 08:39:50,376 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:50,386 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:50,401 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:50,442 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:39:50,510 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. [2018-11-18 08:39:50,511 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:123, output treesize:205 [2018-11-18 08:39:50,650 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2018-11-18 08:39:50,655 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:50,655 INFO L477 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 [2018-11-18 08:39:50,655 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:50,668 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-18 08:39:50,668 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:50,674 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:50,684 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:50,684 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:115, output treesize:25 [2018-11-18 08:39:50,715 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 08:39:50,715 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:39:53,244 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:39:53,244 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:39:53,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:39:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:39:53,286 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:39:53,296 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:53,296 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-18 08:39:53,298 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-18 08:39:53,298 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:53,302 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:53,306 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:53,306 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-11-18 08:39:53,315 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-18 08:39:53,317 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-18 08:39:53,322 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-18 08:39:53,327 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 08:39:53,327 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:53,336 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:53,344 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:53,353 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:53,367 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. [2018-11-18 08:39:53,367 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-11-18 08:39:57,405 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:57,406 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:57,408 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:57,408 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2018-11-18 08:39:57,409 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:57,441 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 08:39:57,441 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:64 [2018-11-18 08:39:57,449 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:57,463 INFO L477 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 [2018-11-18 08:39:57,472 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 08:39:57,481 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:57,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2018-11-18 08:39:57,494 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:57,496 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:57,498 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:57,507 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-11-18 08:39:57,517 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:57,520 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:57,522 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:39:57,537 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 46 [2018-11-18 08:39:57,538 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:39:57,560 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:57,578 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:57,596 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:57,623 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:39:57,663 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. [2018-11-18 08:39:57,663 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:92, output treesize:80 [2018-11-18 08:40:02,613 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:02,616 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:02,617 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:02,619 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:02,622 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:02,623 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2018-11-18 08:40:02,623 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:02,725 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:02,782 INFO L477 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 [2018-11-18 08:40:02,793 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-11-18 08:40:02,805 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:02,806 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-18 08:40:02,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-11-18 08:40:02,814 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:02,834 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:02,867 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:03,026 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:03,027 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-18 08:40:03,034 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-18 08:40:03,048 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:03,049 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-11-18 08:40:03,050 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:03,062 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:03,082 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:03,141 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:40:03,237 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. [2018-11-18 08:40:03,237 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:125, output treesize:205 [2018-11-18 08:40:03,359 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2018-11-18 08:40:03,365 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:03,366 INFO L477 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 [2018-11-18 08:40:03,366 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:03,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-18 08:40:03,379 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:03,385 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:03,396 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:03,396 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:115, output treesize:25 [2018-11-18 08:40:03,399 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 08:40:03,399 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:40:09,929 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:40:09,929 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 13 [2018-11-18 08:40:09,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 08:40:09,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 08:40:09,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=225, Unknown=6, NotChecked=0, Total=272 [2018-11-18 08:40:09,930 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 13 states. [2018-11-18 08:40:14,354 WARN L180 SmtUtils]: Spent 4.06 s on a formula simplification that was a NOOP. DAG size: 50 [2018-11-18 08:40:18,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:40:18,865 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-11-18 08:40:18,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 08:40:18,865 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 35 [2018-11-18 08:40:18,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:40:18,866 INFO L225 Difference]: With dead ends: 49 [2018-11-18 08:40:18,866 INFO L226 Difference]: Without dead ends: 47 [2018-11-18 08:40:18,867 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 57 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 29.8s TimeCoverageRelationStatistics Valid=59, Invalid=315, Unknown=6, NotChecked=0, Total=380 [2018-11-18 08:40:18,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-18 08:40:18,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-11-18 08:40:18,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-18 08:40:18,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2018-11-18 08:40:18,872 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 35 [2018-11-18 08:40:18,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:40:18,872 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2018-11-18 08:40:18,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 08:40:18,872 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2018-11-18 08:40:18,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 08:40:18,873 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:40:18,873 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:40:18,874 INFO L423 AbstractCegarLoop]: === Iteration 3 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:40:18,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:40:18,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1068091800, now seen corresponding path program 1 times [2018-11-18 08:40:18,874 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:40:18,874 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 08:40:18,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:40:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:40:19,097 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:40:19,100 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 08:40:19,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-18 08:40:19,103 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:19,106 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:19,112 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:19,112 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:16, output treesize:17 [2018-11-18 08:40:21,127 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 [2018-11-18 08:40:21,131 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:21,132 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:21,134 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:21,135 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2018-11-18 08:40:21,135 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:21,145 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 08:40:21,145 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:23 [2018-11-18 08:40:21,975 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 [2018-11-18 08:40:21,981 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:21,982 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:21,984 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:21,985 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 08:40:21,985 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 51 [2018-11-18 08:40:21,985 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:22,006 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 08:40:22,006 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:30 [2018-11-18 08:40:22,024 INFO L477 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 [2018-11-18 08:40:22,026 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2018-11-18 08:40:22,027 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:22,040 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-18 08:40:22,041 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:22,051 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2018-11-18 08:40:22,052 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:22,056 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:40:22,069 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. [2018-11-18 08:40:22,069 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:37, output treesize:54 [2018-11-18 08:40:22,131 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-18 08:40:22,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-18 08:40:22,138 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-18 08:40:22,143 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 08:40:22,144 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:22,150 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:22,157 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:22,164 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:22,176 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. [2018-11-18 08:40:22,176 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-11-18 08:40:22,217 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:22,218 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:22,221 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:22,221 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 08:40:22,222 INFO L477 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 [2018-11-18 08:40:22,222 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:22,256 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 08:40:22,256 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:80, output treesize:76 [2018-11-18 08:40:22,314 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:22,322 INFO L477 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 [2018-11-18 08:40:22,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 08:40:22,329 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:22,342 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:22,363 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 08:40:22,364 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:88, output treesize:89 [2018-11-18 08:40:25,065 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2018-11-18 08:40:25,065 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:25,174 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:25,177 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:25,204 INFO L477 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 [2018-11-18 08:40:25,214 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 113 [2018-11-18 08:40:25,224 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:25,225 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2018-11-18 08:40:25,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 46 [2018-11-18 08:40:25,237 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:25,254 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:25,278 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:25,390 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:25,391 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-18 08:40:25,398 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-18 08:40:25,404 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:25,404 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-11-18 08:40:25,405 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:25,415 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:25,430 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:25,470 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:40:25,546 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. [2018-11-18 08:40:25,546 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:132, output treesize:213 [2018-11-18 08:40:27,560 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:27,561 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:27,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2018-11-18 08:40:27,573 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2018-11-18 08:40:27,574 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 08:40:27,604 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:27,605 INFO L477 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 [2018-11-18 08:40:27,605 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:27,616 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:27,627 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:27,627 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:102, output treesize:25 [2018-11-18 08:40:27,753 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 2 not checked. [2018-11-18 08:40:27,753 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:40:30,830 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:40:30,830 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:40:30,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:40:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:40:30,889 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:40:30,901 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:30,902 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-18 08:40:30,904 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-18 08:40:30,904 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:30,908 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:30,913 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:30,913 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:18 [2018-11-18 08:40:32,946 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 [2018-11-18 08:40:32,950 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:32,951 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:32,952 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:32,953 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-18 08:40:32,953 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:32,963 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 08:40:32,963 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:23 [2018-11-18 08:40:33,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-18 08:40:33,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-18 08:40:33,023 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-18 08:40:33,031 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 08:40:33,031 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:33,038 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:33,045 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:33,051 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:33,063 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. [2018-11-18 08:40:33,063 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:51 [2018-11-18 08:40:33,823 WARN L180 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-11-18 08:40:33,829 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:33,830 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:33,836 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:33,851 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 41 [2018-11-18 08:40:33,852 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 4 xjuncts. [2018-11-18 08:40:33,927 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. [2018-11-18 08:40:33,927 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:71, output treesize:211 [2018-11-18 08:40:34,201 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2018-11-18 08:40:34,495 WARN L180 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 92 [2018-11-18 08:40:34,497 INFO L477 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 [2018-11-18 08:40:34,501 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:34,502 INFO L477 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 [2018-11-18 08:40:34,502 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:34,520 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:34,612 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:34,614 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 70 [2018-11-18 08:40:34,621 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 08:40:34,622 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:34,644 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:34,644 INFO L477 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 [2018-11-18 08:40:34,645 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:34,655 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:34,724 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:34,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 70 [2018-11-18 08:40:34,734 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:34,735 INFO L477 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 [2018-11-18 08:40:34,735 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:34,753 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 08:40:34,753 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:34,764 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:34,811 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. [2018-11-18 08:40:34,811 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 15 variables, input treesize:300, output treesize:112 [2018-11-18 08:40:35,023 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-18 08:40:35,026 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-18 08:40:35,031 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-18 08:40:35,040 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 08:40:35,040 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:35,047 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:35,053 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:35,059 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:35,073 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. [2018-11-18 08:40:35,073 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-11-18 08:40:35,103 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:35,104 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:35,107 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:35,110 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:35,111 INFO L477 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 [2018-11-18 08:40:35,112 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:35,212 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:35,213 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:35,216 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:35,217 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:35,218 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:35,222 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 92 [2018-11-18 08:40:35,222 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:35,283 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. [2018-11-18 08:40:35,284 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:153, output treesize:142 [2018-11-18 08:40:35,498 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2018-11-18 08:40:35,505 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:35,512 INFO L477 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 [2018-11-18 08:40:35,517 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 08:40:35,517 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:35,560 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:35,652 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:35,660 INFO L477 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 [2018-11-18 08:40:35,672 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 08:40:35,672 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:35,722 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:35,798 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. [2018-11-18 08:40:35,799 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:171, output treesize:173 [2018-11-18 08:40:39,889 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:39,892 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:39,894 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:39,895 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 08:40:39,895 INFO L477 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 [2018-11-18 08:40:39,896 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:40,245 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:40,251 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:40,255 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:40,260 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:40,263 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:40,263 INFO L477 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 [2018-11-18 08:40:40,264 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:40,668 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:40,673 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:40,717 INFO L477 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 [2018-11-18 08:40:40,726 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:40,727 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:40,728 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 08:40:40,730 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:40,730 INFO L477 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 [2018-11-18 08:40:40,737 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2018-11-18 08:40:40,793 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:40,794 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 44 [2018-11-18 08:40:40,795 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:40,807 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:40,851 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:41,142 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 117 [2018-11-18 08:40:41,148 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:41,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 25 [2018-11-18 08:40:41,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2018-11-18 08:40:41,157 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:41,173 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:41,216 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:41,321 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:40:41,709 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:41,712 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:41,788 INFO L477 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 [2018-11-18 08:40:41,803 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 149 [2018-11-18 08:40:41,813 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:41,814 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2018-11-18 08:40:41,824 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 46 [2018-11-18 08:40:41,824 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:41,841 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:41,887 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:42,087 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:42,088 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 92 [2018-11-18 08:40:42,098 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-18 08:40:42,103 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:42,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-11-18 08:40:42,104 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:42,120 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:42,149 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:42,234 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:40:42,478 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. [2018-11-18 08:40:42,479 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 9 variables, input treesize:259, output treesize:393 [2018-11-18 08:40:44,760 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:44,761 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:44,762 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 68 [2018-11-18 08:40:44,771 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2018-11-18 08:40:44,771 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 08:40:44,794 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:40:44,795 INFO L477 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 [2018-11-18 08:40:44,795 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 08:40:44,802 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:44,810 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:40:44,810 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:94, output treesize:25 [2018-11-18 08:40:44,819 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 2 not checked. [2018-11-18 08:40:44,820 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:40:49,845 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:40:49,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 26 [2018-11-18 08:40:49,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-11-18 08:40:49,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-11-18 08:40:49,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=564, Unknown=6, NotChecked=150, Total=812 [2018-11-18 08:40:49,846 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand 26 states. [2018-11-18 08:40:54,097 WARN L180 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 51 DAG size of output: 36 [2018-11-18 08:41:03,813 WARN L180 SmtUtils]: Spent 4.05 s on a formula simplification that was a NOOP. DAG size: 50 [2018-11-18 08:41:13,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:41:13,677 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2018-11-18 08:41:13,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 08:41:13,679 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 46 [2018-11-18 08:41:13,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:41:13,680 INFO L225 Difference]: With dead ends: 47 [2018-11-18 08:41:13,680 INFO L226 Difference]: Without dead ends: 45 [2018-11-18 08:41:13,681 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 32.3s TimeCoverageRelationStatistics Valid=156, Invalid=906, Unknown=6, NotChecked=192, Total=1260 [2018-11-18 08:41:13,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-18 08:41:13,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-18 08:41:13,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-18 08:41:13,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2018-11-18 08:41:13,688 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 46 [2018-11-18 08:41:13,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:41:13,688 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2018-11-18 08:41:13,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-11-18 08:41:13,688 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2018-11-18 08:41:13,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 08:41:13,690 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:41:13,691 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:41:13,691 INFO L423 AbstractCegarLoop]: === Iteration 4 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:41:13,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:41:13,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1685865891, now seen corresponding path program 1 times [2018-11-18 08:41:13,692 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:41:13,692 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-18 08:41:13,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:41:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:41:13,966 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:41:13,975 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:13,976 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-18 08:41:13,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-18 08:41:13,978 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:13,981 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:13,992 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:13,992 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-11-18 08:41:14,008 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-18 08:41:14,012 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-18 08:41:14,020 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-18 08:41:14,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 08:41:14,029 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:14,036 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:14,044 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:14,051 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:14,065 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. [2018-11-18 08:41:14,065 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-11-18 08:41:14,095 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:14,098 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:14,114 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:14,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-18 08:41:14,115 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:14,145 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 08:41:14,146 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:63 [2018-11-18 08:41:14,170 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:14,177 INFO L477 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 [2018-11-18 08:41:14,184 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 08:41:14,184 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:14,197 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:14,215 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 08:41:14,215 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:80, output treesize:81 [2018-11-18 08:41:19,767 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-11-18 08:41:19,781 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:19,784 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:19,785 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 08:41:19,785 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-11-18 08:41:19,785 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:19,895 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:19,965 INFO L477 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 [2018-11-18 08:41:19,973 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-11-18 08:41:19,984 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:19,985 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-18 08:41:19,991 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-11-18 08:41:19,991 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:20,004 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:20,025 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:20,139 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:20,140 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-18 08:41:20,145 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-18 08:41:20,149 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:20,150 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-11-18 08:41:20,150 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:20,159 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:20,174 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:20,218 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:41:20,288 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. [2018-11-18 08:41:20,288 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:124, output treesize:203 [2018-11-18 08:41:20,744 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2018-11-18 08:41:20,748 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:20,748 INFO L477 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 [2018-11-18 08:41:20,748 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:20,760 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-18 08:41:20,760 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:20,766 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:20,776 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:20,776 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:100, output treesize:25 [2018-11-18 08:41:20,833 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-18 08:41:20,833 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:41:29,525 WARN L180 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 41 [2018-11-18 08:41:29,534 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:41:29,534 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:41:29,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:41:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:41:29,590 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:41:29,600 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:29,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-18 08:41:29,603 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-18 08:41:29,603 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:29,606 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:29,610 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:29,610 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-11-18 08:41:29,621 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-18 08:41:29,624 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-18 08:41:29,628 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-18 08:41:29,633 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 08:41:29,633 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:29,642 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:29,648 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:29,654 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:29,669 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. [2018-11-18 08:41:29,669 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-11-18 08:41:29,710 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:29,711 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:29,712 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:29,712 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-18 08:41:29,713 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:29,732 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 08:41:29,732 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:63 [2018-11-18 08:41:29,737 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:29,743 INFO L477 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 [2018-11-18 08:41:29,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 08:41:29,749 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:29,762 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:29,780 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 08:41:29,780 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:80, output treesize:81 [2018-11-18 08:41:34,725 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:34,728 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:34,728 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 08:41:34,729 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2018-11-18 08:41:34,729 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:34,824 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:34,849 INFO L477 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 [2018-11-18 08:41:34,856 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-11-18 08:41:34,863 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:34,864 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-18 08:41:34,870 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-11-18 08:41:34,871 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:34,884 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:34,912 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:35,008 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:35,009 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-18 08:41:35,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-18 08:41:35,021 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:35,021 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-11-18 08:41:35,022 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:35,035 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:35,051 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:35,094 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:41:35,178 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. [2018-11-18 08:41:35,178 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:126, output treesize:203 [2018-11-18 08:41:35,648 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 66 [2018-11-18 08:41:35,652 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-18 08:41:35,652 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:35,668 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:41:35,669 INFO L477 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 [2018-11-18 08:41:35,669 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 08:41:35,675 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:35,685 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:41:35,685 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:100, output treesize:25 [2018-11-18 08:41:35,689 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-18 08:41:35,690 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:41:43,459 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:41:43,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-11-18 08:41:43,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 08:41:43,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 08:41:43,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=167, Unknown=7, NotChecked=0, Total=210 [2018-11-18 08:41:43,460 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand 11 states. [2018-11-18 08:41:53,468 WARN L180 SmtUtils]: Spent 4.31 s on a formula simplification that was a NOOP. DAG size: 50 [2018-11-18 08:41:56,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:41:56,719 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2018-11-18 08:41:56,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 08:41:56,719 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 62 [2018-11-18 08:41:56,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:41:56,719 INFO L225 Difference]: With dead ends: 45 [2018-11-18 08:41:56,719 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 08:41:56,720 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 113 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 32.0s TimeCoverageRelationStatistics Valid=53, Invalid=246, Unknown=7, NotChecked=0, Total=306 [2018-11-18 08:41:56,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 08:41:56,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 08:41:56,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 08:41:56,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 08:41:56,720 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-11-18 08:41:56,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:41:56,721 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 08:41:56,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 08:41:56,721 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 08:41:56,721 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 08:41:56,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 08:41:56,945 INFO L425 ceAbstractionStarter]: For program point L130-1(line 130) no Hoare annotation was computed. [2018-11-18 08:41:56,946 INFO L425 ceAbstractionStarter]: For program point testOneFINAL(lines 127 136) no Hoare annotation was computed. [2018-11-18 08:41:56,946 INFO L425 ceAbstractionStarter]: For program point testOneEXIT(lines 127 136) no Hoare annotation was computed. [2018-11-18 08:41:56,946 INFO L421 ceAbstractionStarter]: At program point testOneENTRY(lines 127 136) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-18 08:41:56,946 INFO L425 ceAbstractionStarter]: For program point testOneErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133) no Hoare annotation was computed. [2018-11-18 08:41:56,946 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-18 08:41:56,946 INFO L425 ceAbstractionStarter]: For program point L133-1(line 133) no Hoare annotation was computed. [2018-11-18 08:41:56,946 INFO L421 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|)))) [2018-11-18 08:41:56,946 INFO L421 ceAbstractionStarter]: At program point L130(line 130) the Hoare annotation is: (and (not (= |testOne_~#f1~0.base| |testOne_~#f2~0.base|)) (= (_ bv1 1) (select |#valid| |testOne_~#f2~0.base|)) (= |testOne_~#f2~0.offset| (_ bv0 32)) (= (bvadd (select |#valid| |testOne_~#f1~0.base|) (_ bv1 1)) (_ bv0 1))) [2018-11-18 08:41:56,946 INFO L425 ceAbstractionStarter]: For program point L131-1(line 131) no Hoare annotation was computed. [2018-11-18 08:41:56,946 INFO L425 ceAbstractionStarter]: For program point L133-3(line 133) no Hoare annotation was computed. [2018-11-18 08:41:56,947 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 08:41:56,947 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-11-18 08:41:56,947 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 08:41:56,947 INFO L421 ceAbstractionStarter]: At program point returnsStructureENTRY(lines 116 124) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-18 08:41:56,947 INFO L425 ceAbstractionStarter]: For program point returnsStructureFINAL(lines 116 124) no Hoare annotation was computed. [2018-11-18 08:41:56,947 INFO L425 ceAbstractionStarter]: For program point returnsStructureEXIT(lines 116 124) no Hoare annotation was computed. [2018-11-18 08:41:56,947 INFO L425 ceAbstractionStarter]: For program point L162-1(line 162) no Hoare annotation was computed. [2018-11-18 08:41:56,947 INFO L421 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|))) [2018-11-18 08:41:56,947 INFO L421 ceAbstractionStarter]: At program point L159(line 159) the Hoare annotation is: (and (= (_ bv1 1) (select |#valid| |testThree_~#f1~2.base|)) (= (_ bv1 1) (select |#valid| |testThree_~#f2~2.base|)) (not (= |testThree_~#f1~2.base| |testThree_~#f2~2.base|))) [2018-11-18 08:41:56,947 INFO L425 ceAbstractionStarter]: For program point L160-1(line 160) no Hoare annotation was computed. [2018-11-18 08:41:56,947 INFO L425 ceAbstractionStarter]: For program point L162-3(line 162) no Hoare annotation was computed. [2018-11-18 08:41:56,947 INFO L425 ceAbstractionStarter]: For program point L159-1(line 159) no Hoare annotation was computed. [2018-11-18 08:41:56,947 INFO L425 ceAbstractionStarter]: For program point testThreeFINAL(lines 156 165) no Hoare annotation was computed. [2018-11-18 08:41:56,948 INFO L425 ceAbstractionStarter]: For program point testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION(line 162) no Hoare annotation was computed. [2018-11-18 08:41:56,948 INFO L425 ceAbstractionStarter]: For program point testThreeEXIT(lines 156 165) no Hoare annotation was computed. [2018-11-18 08:41:56,948 INFO L421 ceAbstractionStarter]: At program point testThreeENTRY(lines 156 165) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-18 08:41:56,948 INFO L425 ceAbstractionStarter]: For program point L162(line 162) no Hoare annotation was computed. [2018-11-18 08:41:56,948 INFO L425 ceAbstractionStarter]: For program point returnsFieldEXIT(lines 106 114) no Hoare annotation was computed. [2018-11-18 08:41:56,948 INFO L421 ceAbstractionStarter]: At program point returnsFieldENTRY(lines 106 114) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-18 08:41:56,948 INFO L425 ceAbstractionStarter]: For program point returnsFieldFINAL(lines 106 114) no Hoare annotation was computed. [2018-11-18 08:41:56,948 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 08:41:56,948 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 08:41:56,948 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 08:41:56,948 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 08:41:56,948 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 167 173) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-18 08:41:56,948 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 167 173) no Hoare annotation was computed. [2018-11-18 08:41:56,948 INFO L425 ceAbstractionStarter]: For program point L170(line 170) no Hoare annotation was computed. [2018-11-18 08:41:56,948 INFO L428 ceAbstractionStarter]: At program point L169(line 169) the Hoare annotation is: true [2018-11-18 08:41:56,948 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 167 173) no Hoare annotation was computed. [2018-11-18 08:41:56,949 INFO L428 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: true [2018-11-18 08:41:56,949 INFO L425 ceAbstractionStarter]: For program point testTwoEXIT(lines 139 153) no Hoare annotation was computed. [2018-11-18 08:41:56,949 INFO L425 ceAbstractionStarter]: For program point L147(line 147) no Hoare annotation was computed. [2018-11-18 08:41:56,949 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-18 08:41:56,949 INFO L425 ceAbstractionStarter]: For program point L145-1(line 145) no Hoare annotation was computed. [2018-11-18 08:41:56,949 INFO L421 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|)) [2018-11-18 08:41:56,949 INFO L425 ceAbstractionStarter]: For program point L143-1(line 143) no Hoare annotation was computed. [2018-11-18 08:41:56,949 INFO L421 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|)) [2018-11-18 08:41:56,949 INFO L425 ceAbstractionStarter]: For program point testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION(line 150) no Hoare annotation was computed. [2018-11-18 08:41:56,949 INFO L425 ceAbstractionStarter]: For program point testTwoFINAL(lines 139 153) no Hoare annotation was computed. [2018-11-18 08:41:56,949 INFO L425 ceAbstractionStarter]: For program point testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2018-11-18 08:41:56,949 INFO L425 ceAbstractionStarter]: For program point L150(line 150) no Hoare annotation was computed. [2018-11-18 08:41:56,950 INFO L425 ceAbstractionStarter]: For program point L150-1(line 150) no Hoare annotation was computed. [2018-11-18 08:41:56,950 INFO L421 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|))) [2018-11-18 08:41:56,950 INFO L425 ceAbstractionStarter]: For program point L148-1(line 148) no Hoare annotation was computed. [2018-11-18 08:41:56,950 INFO L425 ceAbstractionStarter]: For program point L150-3(line 150) no Hoare annotation was computed. [2018-11-18 08:41:56,950 INFO L421 ceAbstractionStarter]: At program point testTwoENTRY(lines 139 153) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-18 08:41:56,950 INFO L421 ceAbstractionStarter]: At program point L142(line 142) the Hoare annotation is: (and (= (_ bv1 1) (select |#valid| |testTwo_~#f2~1.base|)) (= (_ bv1 1) (select |#valid| |testTwo_~#f1~1.base|)) (= (_ bv0 32) |testTwo_~#f2~1.offset|) (not (= |testTwo_~#f1~1.base| |testTwo_~#f2~1.base|)) (= (_ bv0 32) |testTwo_~#f1~1.offset|)) [2018-11-18 08:41:56,950 INFO L425 ceAbstractionStarter]: For program point L142-1(line 142) no Hoare annotation was computed. [2018-11-18 08:41:56,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:41:56 BoogieIcfgContainer [2018-11-18 08:41:56,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 08:41:56,953 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:41:56,953 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:41:56,953 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:41:56,953 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:39:15" (3/4) ... [2018-11-18 08:41:56,957 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 08:41:56,962 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 08:41:56,962 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure testOne [2018-11-18 08:41:56,962 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure returnsStructure [2018-11-18 08:41:56,963 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure testThree [2018-11-18 08:41:56,963 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure returnsField [2018-11-18 08:41:56,963 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 08:41:56,963 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure testTwo [2018-11-18 08:41:56,970 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2018-11-18 08:41:56,970 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-18 08:41:56,971 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 08:41:56,971 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 08:41:57,001 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_458a5d62-8c81-47dd-ac1f-78f5d73515a2/bin-2019/uautomizer/witness.graphml [2018-11-18 08:41:57,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:41:57,002 INFO L168 Benchmark]: Toolchain (without parser) took 162503.97 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 237.5 MB). Free memory was 951.9 MB in the beginning and 809.9 MB in the end (delta: 142.0 MB). Peak memory consumption was 379.5 MB. Max. memory is 11.5 GB. [2018-11-18 08:41:57,002 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:41:57,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 191.07 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 08:41:57,003 INFO L168 Benchmark]: Boogie Preprocessor took 37.38 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:41:57,003 INFO L168 Benchmark]: RCFGBuilder took 320.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -157.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-18 08:41:57,003 INFO L168 Benchmark]: TraceAbstraction took 161903.53 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 106.4 MB). Free memory was 1.1 GB in the beginning and 818.7 MB in the end (delta: 274.2 MB). Peak memory consumption was 380.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:41:57,003 INFO L168 Benchmark]: Witness Printer took 48.76 ms. Allocated memory is still 1.3 GB. Free memory was 818.7 MB in the beginning and 809.9 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. [2018-11-18 08:41:57,004 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 191.07 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.38 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 320.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -157.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 161903.53 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 106.4 MB). Free memory was 1.1 GB in the beginning and 818.7 MB in the end (delta: 274.2 MB). Peak memory consumption was 380.7 MB. Max. memory is 11.5 GB. * Witness Printer took 48.76 ms. Allocated memory is still 1.3 GB. Free memory was 818.7 MB in the beginning and 809.9 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 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: 150]: 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 - 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, 161.8s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 55.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 149 SDtfs, 12 SDslu, 978 SDs, 0 SdLazy, 984 SolverSat, 128 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 36.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 363 GetRequests, 261 SyntacticMatches, 15 SemanticMatches, 87 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 111.0s 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, 105.3s InterpolantComputationTime, 324 NumberOfCodeBlocks, 324 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 316 ConstructedInterpolants, 74 QuantifiedInterpolants, 209127 SizeOfPredicates, 81 NumberOfNonLiveVariables, 1388 ConjunctsInSsa, 282 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...