./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/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_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/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_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/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_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/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 0.1.23-635dfa2 [2018-12-08 10:49:16,188 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 10:49:16,189 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 10:49:16,197 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 10:49:16,197 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 10:49:16,198 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 10:49:16,199 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 10:49:16,200 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 10:49:16,201 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 10:49:16,202 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 10:49:16,203 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 10:49:16,203 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 10:49:16,203 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 10:49:16,204 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 10:49:16,205 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 10:49:16,205 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 10:49:16,206 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 10:49:16,207 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 10:49:16,209 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 10:49:16,210 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 10:49:16,211 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 10:49:16,212 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 10:49:16,213 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 10:49:16,213 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 10:49:16,214 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 10:49:16,214 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 10:49:16,215 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 10:49:16,216 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 10:49:16,216 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 10:49:16,217 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 10:49:16,217 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 10:49:16,218 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 10:49:16,218 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 10:49:16,218 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 10:49:16,218 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 10:49:16,219 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 10:49:16,219 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 10:49:16,229 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 10:49:16,229 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 10:49:16,230 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 10:49:16,230 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 10:49:16,231 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 10:49:16,231 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 10:49:16,231 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 10:49:16,231 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 10:49:16,231 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 10:49:16,231 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 10:49:16,231 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 10:49:16,232 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 10:49:16,232 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 10:49:16,232 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 10:49:16,232 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 10:49:16,232 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 10:49:16,232 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 10:49:16,232 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 10:49:16,232 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 10:49:16,233 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 10:49:16,233 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 10:49:16,233 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 10:49:16,233 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 10:49:16,233 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 10:49:16,233 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 10:49:16,233 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 10:49:16,233 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 10:49:16,233 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 10:49:16,234 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 10:49:16,234 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 10:49:16,234 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_6ff49cb9-7461-460f-87ed-bac20b78fc05/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 [2018-12-08 10:49:16,257 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 10:49:16,266 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 10:49:16,268 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 10:49:16,269 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 10:49:16,270 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 10:49:16,270 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-12-08 10:49:16,312 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/data/42c6df473/693e4bdc8e4444e3b262ed07aeb6020c/FLAG4a0cdb9c1 [2018-12-08 10:49:16,635 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 10:49:16,636 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-12-08 10:49:16,640 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/data/42c6df473/693e4bdc8e4444e3b262ed07aeb6020c/FLAG4a0cdb9c1 [2018-12-08 10:49:17,045 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/data/42c6df473/693e4bdc8e4444e3b262ed07aeb6020c [2018-12-08 10:49:17,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 10:49:17,048 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 10:49:17,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 10:49:17,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 10:49:17,051 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 10:49:17,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:49:17" (1/1) ... [2018-12-08 10:49:17,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff044c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:17, skipping insertion in model container [2018-12-08 10:49:17,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:49:17" (1/1) ... [2018-12-08 10:49:17,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 10:49:17,072 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 10:49:17,175 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 10:49:17,177 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 10:49:17,194 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 10:49:17,207 INFO L195 MainTranslator]: Completed translation [2018-12-08 10:49:17,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:17 WrapperNode [2018-12-08 10:49:17,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 10:49:17,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 10:49:17,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 10:49:17,208 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 10:49:17,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:17" (1/1) ... [2018-12-08 10:49:17,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:17" (1/1) ... [2018-12-08 10:49:17,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 10:49:17,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 10:49:17,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 10:49:17,224 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 10:49:17,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:17" (1/1) ... [2018-12-08 10:49:17,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:17" (1/1) ... [2018-12-08 10:49:17,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:17" (1/1) ... [2018-12-08 10:49:17,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:17" (1/1) ... [2018-12-08 10:49:17,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:17" (1/1) ... [2018-12-08 10:49:17,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:17" (1/1) ... [2018-12-08 10:49:17,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:17" (1/1) ... [2018-12-08 10:49:17,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 10:49:17,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 10:49:17,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 10:49:17,279 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 10:49:17,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/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 [2018-12-08 10:49:17,312 INFO L130 BoogieDeclarations]: Found specification of procedure testOne [2018-12-08 10:49:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure testOne [2018-12-08 10:49:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure testThree [2018-12-08 10:49:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure testThree [2018-12-08 10:49:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2018-12-08 10:49:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2018-12-08 10:49:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 10:49:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 10:49:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure testTwo [2018-12-08 10:49:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure testTwo [2018-12-08 10:49:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-08 10:49:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 10:49:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 10:49:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 10:49:17,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-08 10:49:17,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 10:49:17,314 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2018-12-08 10:49:17,314 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2018-12-08 10:49:17,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 10:49:17,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 10:49:17,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 10:49:17,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 10:49:17,498 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 10:49:17,499 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 10:49:17,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:49:17 BoogieIcfgContainer [2018-12-08 10:49:17,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 10:49:17,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 10:49:17,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 10:49:17,502 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 10:49:17,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 10:49:17" (1/3) ... [2018-12-08 10:49:17,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fd1c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 10:49:17, skipping insertion in model container [2018-12-08 10:49:17,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:17" (2/3) ... [2018-12-08 10:49:17,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fd1c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 10:49:17, skipping insertion in model container [2018-12-08 10:49:17,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:49:17" (3/3) ... [2018-12-08 10:49:17,504 INFO L112 eAbstractionObserver]: Analyzing ICFG float22_true-unreach-call_true-termination.i [2018-12-08 10:49:17,509 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 10:49:17,514 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-08 10:49:17,523 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-08 10:49:17,541 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 10:49:17,542 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 10:49:17,542 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 10:49:17,542 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 10:49:17,542 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 10:49:17,542 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 10:49:17,542 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 10:49:17,542 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 10:49:17,542 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 10:49:17,553 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-12-08 10:49:17,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 10:49:17,557 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 10:49:17,557 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 10:49:17,558 INFO L423 AbstractCegarLoop]: === Iteration 1 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 10:49:17,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:49:17,562 INFO L82 PathProgramCache]: Analyzing trace with hash 355812978, now seen corresponding path program 1 times [2018-12-08 10:49:17,563 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:49:17,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:49:17,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:49:17,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:49:17,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:49:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:49:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:49:17,694 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 10:49:17,702 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-08 10:49:17,703 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-12-08 10:49:17,703 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-08 10:49:17,703 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-12-08 10:49:17,703 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-08 10:49:17,703 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-12-08 10:49:17,703 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-08 10:49:17,703 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-12-08 10:49:17,704 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-08 10:49:17,704 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-12-08 10:49:17,704 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-08 10:49:17,704 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-12-08 10:49:17,704 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled [2018-12-08 10:49:17,704 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled [2018-12-08 10:49:17,704 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled [2018-12-08 10:49:17,705 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-08 10:49:17,705 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-12-08 10:49:17,705 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-08 10:49:17,705 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-12-08 10:49:17,705 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-08 10:49:17,705 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-12-08 10:49:17,705 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-08 10:49:17,705 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-12-08 10:49:17,706 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-08 10:49:17,706 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-12-08 10:49:17,706 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-12-08 10:49:17,706 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-12-08 10:49:17,706 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled [2018-12-08 10:49:17,706 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled [2018-12-08 10:49:17,706 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled [2018-12-08 10:49:17,711 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.negative [2018-12-08 10:49:17,712 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res!f [2018-12-08 10:49:17,712 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.exponent [2018-12-08 10:49:17,712 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.mantissa [2018-12-08 10:49:17,712 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res!f [2018-12-08 10:49:17,712 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.negative [2018-12-08 10:49:17,713 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.exponent [2018-12-08 10:49:17,713 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.mantissa [2018-12-08 10:49:17,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 10:49:17 BoogieIcfgContainer [2018-12-08 10:49:17,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 10:49:17,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 10:49:17,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 10:49:17,719 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 10:49:17,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:49:17" (3/4) ... [2018-12-08 10:49:17,721 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 10:49:17,721 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 10:49:17,722 INFO L168 Benchmark]: Toolchain (without parser) took 674.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 961.4 MB in the beginning and 1.0 GB in the end (delta: -80.2 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2018-12-08 10:49:17,723 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 10:49:17,723 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.61 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 945.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-08 10:49:17,723 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.97 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 10:49:17,724 INFO L168 Benchmark]: Boogie Preprocessor took 55.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -158.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-08 10:49:17,724 INFO L168 Benchmark]: RCFGBuilder took 220.10 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2018-12-08 10:49:17,724 INFO L168 Benchmark]: TraceAbstraction took 218.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2018-12-08 10:49:17,725 INFO L168 Benchmark]: Witness Printer took 2.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-08 10:49:17,727 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 158.61 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 945.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.97 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -158.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 220.10 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 218.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.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.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.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.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.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.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.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.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.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.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable #res!f - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable #res!f - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.mantissa * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 133]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 119. Possible FailurePath: [L168] CALL testOne() [L128] ieee754_float f1, f2; VAL [f1={21:0}, f2={27:0}] [L130] CALL, EXPR returnsStructure(0) VAL [\old(index)=0] [L117] ieee754_float c; [L119] c.ieee.negative = index & 0x1 [L120] c.ieee.exponent = 0 [L121] c.ieee.mantissa = 0 [L123] return c; [L123] return c; VAL [\old(index)=0, index=0, unknown-#res!f-unknown=25, unknown-#res.ieee.exponent-unknown=0, unknown-#res.ieee.mantissa-unknown=0, unknown-#res.ieee.negative-unknown=0] [L130] RET, EXPR returnsStructure(0) VAL [f1={21:0}, f2={27:0}, returnsStructure(0)=0returnsStructure(0)=0returnsStructure(0)=0returnsStructure(0)=25] [L130] f1 = returnsStructure(0) [L131] CALL, EXPR returnsStructure(1) VAL [\old(index)=1] [L117] ieee754_float c; [L119] c.ieee.negative = index & 0x1 [L120] c.ieee.exponent = 0 [L121] c.ieee.mantissa = 0 [L123] return c; [L123] return c; VAL [\old(index)=1, index=1, unknown-#res!f-unknown=19, unknown-#res.ieee.exponent-unknown=0, unknown-#res.ieee.mantissa-unknown=0, unknown-#res.ieee.negative-unknown=0] [L131] RET, EXPR returnsStructure(1) VAL [f1={21:0}, f2={27:0}, returnsStructure(1)=0returnsStructure(1)=0returnsStructure(1)=19returnsStructure(1)=0] [L131] f2 = returnsStructure(1) [L133] EXPR f1.ieee.negative [L133] EXPR f2.ieee.negative VAL [f1={21:0}, f1.ieee.negative=0, f2={27:0}, f2.ieee.negative=0] [L133] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L133] __VERIFIER_error() VAL [f1={21:0}, f2={27:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 59 locations, 4 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-08 10:49:19,095 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 10:49:19,096 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 10:49:19,102 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 10:49:19,102 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 10:49:19,103 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 10:49:19,103 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 10:49:19,104 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 10:49:19,105 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 10:49:19,105 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 10:49:19,106 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 10:49:19,106 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 10:49:19,106 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 10:49:19,107 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 10:49:19,107 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 10:49:19,108 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 10:49:19,108 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 10:49:19,109 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 10:49:19,110 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 10:49:19,111 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 10:49:19,112 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 10:49:19,112 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 10:49:19,113 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 10:49:19,113 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 10:49:19,113 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 10:49:19,114 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 10:49:19,114 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 10:49:19,115 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 10:49:19,115 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 10:49:19,116 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 10:49:19,116 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 10:49:19,117 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 10:49:19,117 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 10:49:19,117 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 10:49:19,118 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 10:49:19,118 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 10:49:19,119 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-08 10:49:19,128 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 10:49:19,129 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 10:49:19,129 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 10:49:19,129 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 10:49:19,130 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 10:49:19,130 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 10:49:19,130 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 10:49:19,130 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 10:49:19,131 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 10:49:19,131 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 10:49:19,131 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 10:49:19,131 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 10:49:19,131 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 10:49:19,131 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 10:49:19,132 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 10:49:19,132 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 10:49:19,132 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 10:49:19,132 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 10:49:19,132 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 10:49:19,132 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 10:49:19,133 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 10:49:19,133 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 10:49:19,133 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 10:49:19,133 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 10:49:19,133 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 10:49:19,133 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 10:49:19,133 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 10:49:19,134 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 10:49:19,134 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-08 10:49:19,134 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 10:49:19,134 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 10:49:19,134 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 10:49:19,134 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_6ff49cb9-7461-460f-87ed-bac20b78fc05/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 [2018-12-08 10:49:19,158 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 10:49:19,165 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 10:49:19,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 10:49:19,168 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 10:49:19,168 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 10:49:19,169 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-12-08 10:49:19,204 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/data/ac4ed5bb1/d052c613d7f44432b6b5a602bb3792f7/FLAGce069ee3a [2018-12-08 10:49:19,609 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 10:49:19,610 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-12-08 10:49:19,614 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/data/ac4ed5bb1/d052c613d7f44432b6b5a602bb3792f7/FLAGce069ee3a [2018-12-08 10:49:19,621 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/data/ac4ed5bb1/d052c613d7f44432b6b5a602bb3792f7 [2018-12-08 10:49:19,623 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 10:49:19,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 10:49:19,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 10:49:19,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 10:49:19,626 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 10:49:19,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:49:19" (1/1) ... [2018-12-08 10:49:19,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6341db38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:19, skipping insertion in model container [2018-12-08 10:49:19,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:49:19" (1/1) ... [2018-12-08 10:49:19,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 10:49:19,644 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 10:49:19,738 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 10:49:19,741 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 10:49:19,763 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 10:49:19,777 INFO L195 MainTranslator]: Completed translation [2018-12-08 10:49:19,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:19 WrapperNode [2018-12-08 10:49:19,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 10:49:19,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 10:49:19,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 10:49:19,778 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 10:49:19,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:19" (1/1) ... [2018-12-08 10:49:19,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:19" (1/1) ... [2018-12-08 10:49:19,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 10:49:19,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 10:49:19,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 10:49:19,795 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 10:49:19,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:19" (1/1) ... [2018-12-08 10:49:19,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:19" (1/1) ... [2018-12-08 10:49:19,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:19" (1/1) ... [2018-12-08 10:49:19,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:19" (1/1) ... [2018-12-08 10:49:19,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:19" (1/1) ... [2018-12-08 10:49:19,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:19" (1/1) ... [2018-12-08 10:49:19,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:19" (1/1) ... [2018-12-08 10:49:19,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 10:49:19,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 10:49:19,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 10:49:19,819 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 10:49:19,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/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 [2018-12-08 10:49:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure testOne [2018-12-08 10:49:19,882 INFO L138 BoogieDeclarations]: Found implementation of procedure testOne [2018-12-08 10:49:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure testThree [2018-12-08 10:49:19,883 INFO L138 BoogieDeclarations]: Found implementation of procedure testThree [2018-12-08 10:49:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2018-12-08 10:49:19,883 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2018-12-08 10:49:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 10:49:19,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 10:49:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure testTwo [2018-12-08 10:49:19,883 INFO L138 BoogieDeclarations]: Found implementation of procedure testTwo [2018-12-08 10:49:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-08 10:49:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 10:49:19,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 10:49:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 10:49:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 10:49:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2018-12-08 10:49:19,883 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2018-12-08 10:49:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 10:49:19,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 10:49:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-08 10:49:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 10:49:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 10:49:19,970 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 10:49:19,979 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 10:49:19,988 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 10:49:19,992 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 10:49:20,030 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 10:49:20,038 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 10:49:20,044 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 10:49:20,048 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 10:49:20,069 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 10:49:20,069 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 10:49:20,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:49:20 BoogieIcfgContainer [2018-12-08 10:49:20,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 10:49:20,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 10:49:20,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 10:49:20,072 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 10:49:20,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 10:49:19" (1/3) ... [2018-12-08 10:49:20,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11768577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 10:49:20, skipping insertion in model container [2018-12-08 10:49:20,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:49:19" (2/3) ... [2018-12-08 10:49:20,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11768577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 10:49:20, skipping insertion in model container [2018-12-08 10:49:20,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:49:20" (3/3) ... [2018-12-08 10:49:20,074 INFO L112 eAbstractionObserver]: Analyzing ICFG float22_true-unreach-call_true-termination.i [2018-12-08 10:49:20,079 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 10:49:20,083 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-08 10:49:20,091 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-08 10:49:20,108 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 10:49:20,108 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 10:49:20,108 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 10:49:20,108 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 10:49:20,108 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 10:49:20,108 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 10:49:20,109 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 10:49:20,109 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 10:49:20,109 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 10:49:20,119 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-12-08 10:49:20,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 10:49:20,122 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 10:49:20,122 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 10:49:20,124 INFO L423 AbstractCegarLoop]: === Iteration 1 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 10:49:20,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:49:20,127 INFO L82 PathProgramCache]: Analyzing trace with hash 355812978, now seen corresponding path program 1 times [2018-12-08 10:49:20,129 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 10:49:20,130 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/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 [2018-12-08 10:49:20,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:49:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:49:20,215 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:49:20,251 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:20,255 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-12-08 10:49:20,259 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-12-08 10:49:20,260 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:20,266 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:20,273 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:20,273 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-12-08 10:49:20,302 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-12-08 10:49:20,305 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-12-08 10:49:20,314 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-12-08 10:49:20,326 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-12-08 10:49:20,326 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:20,339 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:20,351 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:20,362 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:20,384 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:49:20,384 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-12-08 10:49:20,436 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:20,437 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:20,439 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:20,440 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2018-12-08 10:49:20,440 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:20,471 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:49:20,471 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:65 [2018-12-08 10:49:20,517 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:20,548 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 74 [2018-12-08 10:49:20,557 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-12-08 10:49:20,572 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:20,575 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2018-12-08 10:49:20,587 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:20,589 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:20,591 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:20,599 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-12-08 10:49:20,616 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:20,617 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:20,619 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:20,637 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 46 [2018-12-08 10:49:20,638 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:20,664 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:20,683 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:20,703 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:20,743 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:20,794 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:49:20,794 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:95, output treesize:83 [2018-12-08 10:49:23,318 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:23,320 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:23,325 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 10:49:23,326 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2018-12-08 10:49:23,327 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:23,440 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:23,506 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-12-08 10:49:23,523 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-12-08 10:49:23,533 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:23,534 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-12-08 10:49:23,545 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-12-08 10:49:23,546 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:23,564 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:23,590 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:23,684 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:23,686 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-12-08 10:49:23,694 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-12-08 10:49:23,705 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:23,707 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-12-08 10:49:23,707 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:23,720 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:23,740 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:23,790 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-08 10:49:23,860 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-08 10:49:23,861 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:126, output treesize:203 [2018-12-08 10:49:24,089 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 66 [2018-12-08 10:49:24,096 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:24,097 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 12 [2018-12-08 10:49:24,097 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:24,114 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-12-08 10:49:24,114 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:24,122 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:24,133 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:24,133 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:113, output treesize:25 [2018-12-08 10:49:24,242 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 10:49:24,243 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 10:49:26,739 WARN L832 $PredicateComparison]: unable to prove that (forall ((|v_q#valueAsBitvector_10| (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_11| (_ BitVec 32)) (|testOne_#t~ret6.ieee.mantissa| (_ BitVec 32)) (|testOne_#t~ret6.ieee.negative| (_ BitVec 32)) (|testOne_#t~ret6.ieee.exponent| (_ BitVec 32)) (|testOne_~#f2~0.offset| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_11|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (fp ((_ extract 31 31) |v_q#valueAsBitvector_10|) ((_ extract 30 23) |v_q#valueAsBitvector_10|) ((_ extract 22 0) |v_q#valueAsBitvector_10|)) (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) (not (= (select (select (let ((.cse2 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_11| .cse1))) (store .cse2 |c_testOne_~#f2~0.base| (store (store (store (store (select .cse2 |c_testOne_~#f2~0.base|) |testOne_~#f2~0.offset| |testOne_#t~ret6.ieee.negative|) (bvadd |testOne_~#f2~0.offset| (_ bv4 32)) |testOne_#t~ret6.ieee.exponent|) (bvadd |testOne_~#f2~0.offset| (_ bv8 32)) |testOne_#t~ret6.ieee.mantissa|) |testOne_~#f2~0.offset| |v_q#valueAsBitvector_10|))) |c_testOne_~#f1~0.base|) |c_testOne_~#f1~0.offset|) |v_q#valueAsBitvector_10|)) (not (= (select |c_#valid| |v_returnsStructure_~#c~1.base_11|) (_ bv0 1)))))) is different from false [2018-12-08 10:49:26,754 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 10:49:26,754 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/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 [2018-12-08 10:49:26,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:49:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:49:26,785 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:49:26,798 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:26,799 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-12-08 10:49:26,802 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-12-08 10:49:26,802 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:26,807 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:26,817 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:26,817 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:18 [2018-12-08 10:49:26,865 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-12-08 10:49:26,868 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-12-08 10:49:26,874 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-12-08 10:49:26,882 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-12-08 10:49:26,882 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:26,890 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:26,898 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:26,905 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:26,920 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:49:26,920 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-12-08 10:49:28,942 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:28,944 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:28,945 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:28,946 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-12-08 10:49:28,946 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:28,968 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:49:28,968 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:71, output treesize:66 [2018-12-08 10:49:29,046 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:29,061 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 74 [2018-12-08 10:49:29,071 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-12-08 10:49:29,084 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:29,089 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2018-12-08 10:49:29,101 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:29,103 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:29,106 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:29,117 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-12-08 10:49:29,128 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:29,129 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:29,131 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:29,144 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 46 [2018-12-08 10:49:29,145 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:29,171 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:29,190 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:29,211 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:29,245 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:29,294 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:49:29,294 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:98, output treesize:86 [2018-12-08 10:49:33,666 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:33,670 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:33,677 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 10:49:33,678 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2018-12-08 10:49:33,679 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:33,810 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:33,836 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-12-08 10:49:33,846 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-12-08 10:49:33,857 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:33,858 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-12-08 10:49:33,870 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-12-08 10:49:33,870 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:33,897 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:33,940 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:34,080 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:34,081 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-12-08 10:49:34,092 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-12-08 10:49:34,098 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:34,099 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-12-08 10:49:34,099 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:34,111 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:34,129 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:34,175 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-08 10:49:34,253 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-08 10:49:34,253 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:129, output treesize:209 [2018-12-08 10:49:36,443 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2018-12-08 10:49:36,448 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-12-08 10:49:36,448 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:36,469 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:36,469 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 12 [2018-12-08 10:49:36,469 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:36,476 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:36,487 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:36,487 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 8 variables, input treesize:109, output treesize:25 [2018-12-08 10:49:36,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 10:49:36,489 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 10:49:43,137 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 10:49:43,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2018-12-08 10:49:43,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-08 10:49:43,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-08 10:49:43,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=283, Unknown=6, NotChecked=34, Total=380 [2018-12-08 10:49:43,149 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 15 states. [2018-12-08 10:49:49,845 WARN L180 SmtUtils]: Spent 4.06 s on a formula simplification that was a NOOP. DAG size: 50 [2018-12-08 10:49:54,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 10:49:54,208 INFO L93 Difference]: Finished difference Result 104 states and 121 transitions. [2018-12-08 10:49:54,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 10:49:54,209 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 19 [2018-12-08 10:49:54,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 10:49:54,214 INFO L225 Difference]: With dead ends: 104 [2018-12-08 10:49:54,214 INFO L226 Difference]: Without dead ends: 49 [2018-12-08 10:49:54,216 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 24.3s TimeCoverageRelationStatistics Valid=77, Invalid=383, Unknown=6, NotChecked=40, Total=506 [2018-12-08 10:49:54,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-12-08 10:49:54,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-12-08 10:49:54,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-12-08 10:49:54,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-12-08 10:49:54,240 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 19 [2018-12-08 10:49:54,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 10:49:54,241 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-12-08 10:49:54,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-08 10:49:54,241 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-12-08 10:49:54,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-08 10:49:54,242 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 10:49:54,242 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 10:49:54,243 INFO L423 AbstractCegarLoop]: === Iteration 2 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 10:49:54,243 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:49:54,243 INFO L82 PathProgramCache]: Analyzing trace with hash -787169268, now seen corresponding path program 1 times [2018-12-08 10:49:54,243 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 10:49:54,243 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/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 [2018-12-08 10:49:54,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:49:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:49:54,389 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:49:54,393 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 48 [2018-12-08 10:49:54,395 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2018-12-08 10:49:54,400 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2018-12-08 10:49:54,413 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2018-12-08 10:49:54,413 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:54,414 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:54,416 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:54,417 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:54,418 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:54,418 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:54, output treesize:15 [2018-12-08 10:49:54,433 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:54,433 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-12-08 10:49:54,435 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-12-08 10:49:54,436 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:54,439 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:54,442 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:54,442 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-12-08 10:49:54,462 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-12-08 10:49:54,465 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-12-08 10:49:54,469 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-12-08 10:49:54,475 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-12-08 10:49:54,476 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:54,484 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:54,493 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:54,501 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:54,516 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:49:54,516 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-12-08 10:49:56,549 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:56,551 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:56,552 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:56,553 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2018-12-08 10:49:56,553 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:56,573 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:49:56,573 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:64 [2018-12-08 10:49:56,604 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:56,620 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 74 [2018-12-08 10:49:56,629 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-12-08 10:49:56,642 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:56,646 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2018-12-08 10:49:56,656 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:56,657 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:56,659 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:56,668 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-12-08 10:49:56,679 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:56,681 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:56,682 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:49:56,697 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 46 [2018-12-08 10:49:56,698 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 10:49:56,721 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:56,739 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:56,756 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:56,785 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:49:56,824 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:49:56,824 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:92, output treesize:80 [2018-12-08 10:50:03,107 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:03,110 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:03,113 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:03,115 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:03,118 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:03,119 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2018-12-08 10:50:03,119 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:03,225 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:03,280 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-12-08 10:50:03,290 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-12-08 10:50:03,299 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:03,300 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-12-08 10:50:03,307 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-12-08 10:50:03,307 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:03,323 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:03,351 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:03,481 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:03,482 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-12-08 10:50:03,488 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-12-08 10:50:03,495 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:03,496 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-12-08 10:50:03,496 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:03,507 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:03,528 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:03,576 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-08 10:50:03,653 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-08 10:50:03,653 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:123, output treesize:205 [2018-12-08 10:50:03,812 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2018-12-08 10:50:03,816 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:03,817 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 12 [2018-12-08 10:50:03,817 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:03,829 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-12-08 10:50:03,830 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:03,837 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:03,848 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:03,848 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:115, output treesize:25 [2018-12-08 10:50:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 10:50:03,886 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 10:50:08,374 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 10:50:08,375 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/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 [2018-12-08 10:50:08,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:50:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:50:08,419 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:50:08,430 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:08,430 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-12-08 10:50:08,432 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-12-08 10:50:08,432 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:08,436 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:08,439 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:08,439 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-12-08 10:50:08,451 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-12-08 10:50:08,454 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-12-08 10:50:08,458 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-12-08 10:50:08,464 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-12-08 10:50:08,465 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:08,474 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:08,483 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:08,492 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:08,508 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:50:08,508 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-12-08 10:50:08,537 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:08,538 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:08,540 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:08,541 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2018-12-08 10:50:08,541 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:08,562 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:50:08,562 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:64 [2018-12-08 10:50:08,571 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:08,589 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 74 [2018-12-08 10:50:08,597 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-12-08 10:50:08,608 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:08,611 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2018-12-08 10:50:08,623 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:08,625 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:08,627 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:08,638 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-12-08 10:50:08,649 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:08,651 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:08,653 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:08,672 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 46 [2018-12-08 10:50:08,672 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:08,697 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:08,718 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:08,739 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:08,773 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:08,818 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:50:08,818 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:92, output treesize:80 [2018-12-08 10:50:15,097 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:15,100 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:15,103 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:15,105 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:15,108 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:15,108 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2018-12-08 10:50:15,109 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:15,225 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:15,294 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-12-08 10:50:15,306 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-12-08 10:50:15,316 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:15,317 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-12-08 10:50:15,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-12-08 10:50:15,324 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:15,339 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:15,370 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:15,497 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:15,498 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-12-08 10:50:15,509 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-12-08 10:50:15,515 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:15,515 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-12-08 10:50:15,516 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:15,526 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:15,544 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:15,586 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-08 10:50:15,665 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-08 10:50:15,665 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:125, output treesize:205 [2018-12-08 10:50:15,777 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2018-12-08 10:50:15,781 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:15,782 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 12 [2018-12-08 10:50:15,782 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:15,796 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-12-08 10:50:15,796 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:15,807 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:15,818 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:15,819 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:115, output treesize:25 [2018-12-08 10:50:15,822 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 10:50:15,822 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 10:50:23,461 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 10:50:23,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 13 [2018-12-08 10:50:23,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-08 10:50:23,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-08 10:50:23,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=222, Unknown=9, NotChecked=0, Total=272 [2018-12-08 10:50:23,463 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 13 states. [2018-12-08 10:50:29,611 WARN L180 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 50 [2018-12-08 10:50:32,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 10:50:32,089 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-12-08 10:50:32,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 10:50:32,090 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 35 [2018-12-08 10:50:32,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 10:50:32,090 INFO L225 Difference]: With dead ends: 49 [2018-12-08 10:50:32,090 INFO L226 Difference]: Without dead ends: 47 [2018-12-08 10:50:32,091 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 57 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 32.7s TimeCoverageRelationStatistics Valid=59, Invalid=311, Unknown=10, NotChecked=0, Total=380 [2018-12-08 10:50:32,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-08 10:50:32,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-12-08 10:50:32,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-08 10:50:32,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2018-12-08 10:50:32,096 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 35 [2018-12-08 10:50:32,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 10:50:32,096 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2018-12-08 10:50:32,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-08 10:50:32,096 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2018-12-08 10:50:32,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-08 10:50:32,097 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 10:50:32,097 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 10:50:32,097 INFO L423 AbstractCegarLoop]: === Iteration 3 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 10:50:32,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:50:32,097 INFO L82 PathProgramCache]: Analyzing trace with hash -2050564504, now seen corresponding path program 1 times [2018-12-08 10:50:32,097 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 10:50:32,097 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/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 [2018-12-08 10:50:32,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:50:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:50:32,326 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:50:32,330 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-08 10:50:32,332 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-12-08 10:50:32,332 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:32,336 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:32,341 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:32,342 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:16, output treesize:17 [2018-12-08 10:50:32,894 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_returnsStructure_~#c~1.base_40| (_ BitVec 32))) (and (= |c_#valid| (store |c_old(#valid)| |v_returnsStructure_~#c~1.base_40| (_ bv0 1))) (= (_ bv0 1) (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_40|)))) is different from true [2018-12-08 10:50:32,899 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:32,906 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:32,908 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:32,909 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2018-12-08 10:50:32,909 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:32,919 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:50:32,919 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:23 [2018-12-08 10:50:34,935 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_returnsStructure_~#c~1.base_41| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_41|)) (= (store |c_old(#valid)| |v_returnsStructure_~#c~1.base_41| (_ bv0 1)) |c_#valid|))) is different from true [2018-12-08 10:50:34,942 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:34,942 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:34,945 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:34,945 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 10:50:34,946 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 51 [2018-12-08 10:50:34,946 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:34,962 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 10:50:34,962 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:30 [2018-12-08 10:50:34,981 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2018-12-08 10:50:34,984 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2018-12-08 10:50:34,984 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:34,997 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-12-08 10:50:34,997 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:35,008 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2018-12-08 10:50:35,009 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:35,014 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-08 10:50:35,025 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-08 10:50:35,025 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:37, output treesize:54 [2018-12-08 10:50:35,096 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-12-08 10:50:35,099 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-12-08 10:50:35,104 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-12-08 10:50:35,110 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-12-08 10:50:35,110 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:35,119 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:35,128 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:35,137 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:35,155 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:50:35,155 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-12-08 10:50:35,536 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:35,537 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:35,541 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:35,541 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 10:50:35,542 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 55 [2018-12-08 10:50:35,542 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:35,576 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 10:50:35,576 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:80, output treesize:76 [2018-12-08 10:50:35,636 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:35,642 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 61 [2018-12-08 10:50:35,649 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-08 10:50:35,649 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:35,664 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:35,686 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:50:35,686 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:88, output treesize:89 [2018-12-08 10:50:38,558 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2018-12-08 10:50:38,558 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:38,667 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:38,670 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:38,705 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 116 [2018-12-08 10:50:38,719 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 113 [2018-12-08 10:50:38,729 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:38,730 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2018-12-08 10:50:38,738 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 46 [2018-12-08 10:50:38,738 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:38,755 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:38,780 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:38,889 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:38,890 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-12-08 10:50:38,895 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-12-08 10:50:38,900 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:38,900 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-12-08 10:50:38,900 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:38,911 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:38,929 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:38,977 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-08 10:50:39,055 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-08 10:50:39,056 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:132, output treesize:213 [2018-12-08 10:50:41,233 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:41,234 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:41,235 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2018-12-08 10:50:41,246 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2018-12-08 10:50:41,247 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-12-08 10:50:41,272 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:41,273 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 12 [2018-12-08 10:50:41,273 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:41,285 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:41,297 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:41,298 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:102, output treesize:25 [2018-12-08 10:50:41,378 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 2 not checked. [2018-12-08 10:50:41,379 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 10:50:45,312 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 10:50:45,312 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/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 [2018-12-08 10:50:45,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:50:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:50:45,372 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:50:45,384 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:45,385 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-12-08 10:50:45,387 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-12-08 10:50:45,387 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:45,391 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:45,399 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:45,399 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:18 [2018-12-08 10:50:47,434 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_returnsStructure_~#c~1.base_44| (_ BitVec 32))) (and (= |c_#valid| (store |c_old(#valid)| |v_returnsStructure_~#c~1.base_44| (_ bv0 1))) (= (_ bv0 1) (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_44|)))) is different from true [2018-12-08 10:50:47,440 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:47,442 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:47,443 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:47,444 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-12-08 10:50:47,444 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:47,456 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:50:47,456 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:23 [2018-12-08 10:50:47,505 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-12-08 10:50:47,507 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-12-08 10:50:47,515 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-12-08 10:50:47,523 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-12-08 10:50:47,524 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:47,531 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:47,538 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:47,545 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:47,557 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:50:47,558 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:51 [2018-12-08 10:50:48,066 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:48,068 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:48,074 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:48,087 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 41 [2018-12-08 10:50:48,087 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 4 xjuncts. [2018-12-08 10:50:48,166 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-12-08 10:50:48,166 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:71, output treesize:211 [2018-12-08 10:50:48,570 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2018-12-08 10:50:48,860 WARN L180 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 92 [2018-12-08 10:50:48,863 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 64 [2018-12-08 10:50:48,868 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:48,869 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2018-12-08 10:50:48,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:48,892 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:48,991 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:48,993 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 70 [2018-12-08 10:50:49,002 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-08 10:50:49,002 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:49,028 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:49,029 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 12 [2018-12-08 10:50:49,029 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:49,046 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:49,120 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:49,123 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 70 [2018-12-08 10:50:49,130 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:49,131 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 12 [2018-12-08 10:50:49,131 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:49,149 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-08 10:50:49,149 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:49,160 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:49,207 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2018-12-08 10:50:49,207 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 15 variables, input treesize:300, output treesize:112 [2018-12-08 10:50:49,429 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-12-08 10:50:49,433 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-12-08 10:50:49,438 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-12-08 10:50:49,446 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-12-08 10:50:49,447 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:49,454 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:49,461 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:49,469 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:49,483 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:50:49,484 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-12-08 10:50:49,510 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:49,511 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:49,514 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:49,517 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:49,517 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 88 [2018-12-08 10:50:49,518 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:49,607 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:49,609 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:49,612 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:49,613 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:49,614 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:49,615 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 92 [2018-12-08 10:50:49,615 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:49,683 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-12-08 10:50:49,683 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:153, output treesize:142 [2018-12-08 10:50:49,883 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:49,891 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 88 [2018-12-08 10:50:49,894 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-08 10:50:49,895 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:49,921 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:50,006 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:50,012 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 84 [2018-12-08 10:50:50,019 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-08 10:50:50,019 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:50,042 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:50,098 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-08 10:50:50,098 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:171, output treesize:173 [2018-12-08 10:50:52,763 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:52,765 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:52,767 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:52,768 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 10:50:52,768 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 122 [2018-12-08 10:50:52,769 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:53,117 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:53,123 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:53,130 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:53,135 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:53,138 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:53,138 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 122 [2018-12-08 10:50:53,139 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:53,494 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:53,502 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:53,549 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 152 [2018-12-08 10:50:53,560 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:53,562 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:53,562 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 10:50:53,564 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:53,565 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 142 [2018-12-08 10:50:53,571 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2018-12-08 10:50:53,634 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:53,635 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 44 [2018-12-08 10:50:53,635 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:53,649 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:53,684 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:53,993 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 117 [2018-12-08 10:50:54,000 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:54,000 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 25 [2018-12-08 10:50:54,005 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2018-12-08 10:50:54,005 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:54,016 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:54,055 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:54,196 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-08 10:50:54,561 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:54,564 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:54,627 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 152 [2018-12-08 10:50:54,638 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 149 [2018-12-08 10:50:54,648 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:54,649 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2018-12-08 10:50:54,656 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 46 [2018-12-08 10:50:54,657 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:54,676 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:54,717 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:54,942 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:54,943 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 92 [2018-12-08 10:50:54,947 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-12-08 10:50:54,951 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:54,951 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-12-08 10:50:54,952 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:54,969 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:54,994 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:55,082 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-08 10:50:55,347 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-1 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 4 xjuncts. [2018-12-08 10:50:55,348 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 9 variables, input treesize:259, output treesize:393 [2018-12-08 10:50:57,641 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:57,642 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:57,643 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 68 [2018-12-08 10:50:57,654 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2018-12-08 10:50:57,654 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-12-08 10:50:57,680 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:50:57,680 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 12 [2018-12-08 10:50:57,681 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 10:50:57,688 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:57,698 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:50:57,698 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:94, output treesize:25 [2018-12-08 10:50:57,706 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 2 not checked. [2018-12-08 10:50:57,706 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 10:51:00,355 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 10:51:00,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 26 [2018-12-08 10:51:00,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-12-08 10:51:00,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-12-08 10:51:00,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=564, Unknown=6, NotChecked=150, Total=812 [2018-12-08 10:51:00,356 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand 26 states. [2018-12-08 10:51:07,872 WARN L180 SmtUtils]: Spent 3.50 s on a formula simplification. DAG size of input: 51 DAG size of output: 36 [2018-12-08 10:51:14,701 WARN L180 SmtUtils]: Spent 4.09 s on a formula simplification that was a NOOP. DAG size: 50 [2018-12-08 10:51:26,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 10:51:26,138 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2018-12-08 10:51:26,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-08 10:51:26,139 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 46 [2018-12-08 10:51:26,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 10:51:26,140 INFO L225 Difference]: With dead ends: 47 [2018-12-08 10:51:26,140 INFO L226 Difference]: Without dead ends: 45 [2018-12-08 10:51:26,140 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 30.8s TimeCoverageRelationStatistics Valid=156, Invalid=906, Unknown=6, NotChecked=192, Total=1260 [2018-12-08 10:51:26,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-08 10:51:26,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-12-08 10:51:26,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-08 10:51:26,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2018-12-08 10:51:26,146 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 46 [2018-12-08 10:51:26,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 10:51:26,146 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2018-12-08 10:51:26,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-12-08 10:51:26,146 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2018-12-08 10:51:26,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-12-08 10:51:26,147 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 10:51:26,147 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 10:51:26,148 INFO L423 AbstractCegarLoop]: === Iteration 4 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 10:51:26,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:51:26,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1306260443, now seen corresponding path program 1 times [2018-12-08 10:51:26,148 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 10:51:26,148 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/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 [2018-12-08 10:51:26,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:51:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:51:26,421 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:51:26,435 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:26,435 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-12-08 10:51:26,437 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-12-08 10:51:26,437 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:26,442 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:26,446 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:26,446 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-12-08 10:51:26,464 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-12-08 10:51:26,469 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-12-08 10:51:26,475 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-12-08 10:51:26,485 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-12-08 10:51:26,486 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:26,493 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:26,500 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:26,508 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:26,524 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:51:26,524 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-12-08 10:51:26,547 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:26,548 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:26,549 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:26,550 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-12-08 10:51:26,550 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:26,575 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:51:26,575 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:63 [2018-12-08 10:51:26,602 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:26,609 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 61 [2018-12-08 10:51:26,616 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-08 10:51:26,616 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:26,629 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:26,650 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:51:26,650 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:80, output treesize:81 [2018-12-08 10:51:28,940 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:28,944 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:28,944 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 10:51:28,945 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-12-08 10:51:28,945 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:29,070 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:29,136 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-12-08 10:51:29,146 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-12-08 10:51:29,156 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:29,157 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-12-08 10:51:29,164 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-12-08 10:51:29,165 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:29,184 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:29,211 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:29,356 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:29,357 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-12-08 10:51:29,363 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-12-08 10:51:29,368 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:29,368 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-12-08 10:51:29,368 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:29,380 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:29,397 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:29,444 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-08 10:51:29,532 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-08 10:51:29,532 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:124, output treesize:203 [2018-12-08 10:51:30,389 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2018-12-08 10:51:30,393 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:30,394 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 12 [2018-12-08 10:51:30,394 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:30,410 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-12-08 10:51:30,410 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:30,417 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:30,429 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:30,429 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:100, output treesize:25 [2018-12-08 10:51:30,626 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-08 10:51:30,626 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 10:51:31,832 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 10:51:31,832 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/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 [2018-12-08 10:51:31,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:51:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:51:31,886 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:51:31,895 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:31,896 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-12-08 10:51:31,897 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-12-08 10:51:31,898 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:31,901 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:31,906 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:31,907 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-12-08 10:51:31,917 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-12-08 10:51:31,919 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-12-08 10:51:31,925 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-12-08 10:51:31,931 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-12-08 10:51:31,931 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:31,940 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:31,947 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:31,953 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:31,968 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:51:31,968 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-12-08 10:51:32,005 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:32,006 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:32,008 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:32,008 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-12-08 10:51:32,008 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:32,029 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:51:32,030 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:63 [2018-12-08 10:51:32,035 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:32,042 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 61 [2018-12-08 10:51:32,049 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-08 10:51:32,049 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:32,062 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:32,082 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 10:51:32,082 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:80, output treesize:81 [2018-12-08 10:51:36,367 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:36,370 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:36,370 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 10:51:36,371 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2018-12-08 10:51:36,371 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:36,484 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:36,512 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-12-08 10:51:36,520 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-12-08 10:51:36,531 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:36,532 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-12-08 10:51:36,540 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-12-08 10:51:36,541 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:36,555 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:36,581 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:36,697 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:36,698 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-12-08 10:51:36,704 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-12-08 10:51:36,711 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:36,712 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-12-08 10:51:36,712 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:36,724 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:36,739 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:36,786 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-08 10:51:36,859 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-08 10:51:36,860 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:126, output treesize:203 [2018-12-08 10:51:38,280 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 66 [2018-12-08 10:51:38,284 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-12-08 10:51:38,285 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:38,304 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 10:51:38,305 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 12 [2018-12-08 10:51:38,305 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 10:51:38,312 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:38,324 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 10:51:38,324 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:100, output treesize:25 [2018-12-08 10:51:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-08 10:51:38,329 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 10:51:40,650 WARN L832 $PredicateComparison]: unable to prove that (forall ((|v_returnsField_~#c~0.base_34| (_ BitVec 32)) (|testThree_~#f2~2.offset| (_ BitVec 32)) (|v_q#valueAsBitvector_24| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsField_~#c~0.base_34|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_returnsField_~#c~0.base_34|))) (not (= (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_q#valueAsBitvector_24|) ((_ extract 30 23) |v_q#valueAsBitvector_24|) ((_ extract 22 0) |v_q#valueAsBitvector_24|)))) (not (= |v_q#valueAsBitvector_24| (select (select (let ((.cse2 (store |c_#memory_int| |v_returnsField_~#c~0.base_34| .cse1))) (store .cse2 |c_testThree_~#f2~2.base| (store (select .cse2 |c_testThree_~#f2~2.base|) |testThree_~#f2~2.offset| |v_q#valueAsBitvector_24|))) |c_testThree_~#f1~2.base|) |c_testThree_~#f1~2.offset|)))))) is different from false [2018-12-08 10:51:40,672 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 10:51:40,672 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-12-08 10:51:40,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 10:51:40,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 10:51:40,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=150, Unknown=2, NotChecked=24, Total=210 [2018-12-08 10:51:40,673 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand 11 states. [2018-12-08 10:51:46,242 WARN L180 SmtUtils]: Spent 3.81 s on a formula simplification that was a NOOP. DAG size: 50 [2018-12-08 10:51:49,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 10:51:49,585 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2018-12-08 10:51:49,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 10:51:49,585 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 62 [2018-12-08 10:51:49,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 10:51:49,585 INFO L225 Difference]: With dead ends: 45 [2018-12-08 10:51:49,585 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 10:51:49,586 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 113 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=50, Invalid=224, Unknown=2, NotChecked=30, Total=306 [2018-12-08 10:51:49,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 10:51:49,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 10:51:49,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 10:51:49,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 10:51:49,586 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-12-08 10:51:49,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 10:51:49,586 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 10:51:49,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 10:51:49,586 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 10:51:49,586 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 10:51:49,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 10:51:49,789 INFO L448 ceAbstractionStarter]: For program point L130-1(line 130) no Hoare annotation was computed. [2018-12-08 10:51:49,790 INFO L448 ceAbstractionStarter]: For program point testOneFINAL(lines 127 136) no Hoare annotation was computed. [2018-12-08 10:51:49,790 INFO L448 ceAbstractionStarter]: For program point testOneEXIT(lines 127 136) no Hoare annotation was computed. [2018-12-08 10:51:49,790 INFO L444 ceAbstractionStarter]: At program point testOneENTRY(lines 127 136) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-12-08 10:51:49,790 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-12-08 10:51:49,790 INFO L448 ceAbstractionStarter]: For program point testOneErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133) no Hoare annotation was computed. [2018-12-08 10:51:49,790 INFO L448 ceAbstractionStarter]: For program point L133-1(line 133) no Hoare annotation was computed. [2018-12-08 10:51:49,790 INFO L444 ceAbstractionStarter]: At program point L131(line 131) the Hoare annotation is: (and (exists ((|v_returnsStructure_~#c~1.base_4| (_ BitVec 32))) (let ((.cse0 (select |#memory_int| |v_returnsStructure_~#c~1.base_4|))) (let ((.cse1 (select .cse0 (_ bv0 32)))) (and (= (_ bv0 32) (select .cse0 (_ bv8 32))) (= (_ bv0 1) (select |#valid| |v_returnsStructure_~#c~1.base_4|)) (= (_ bv0 32) (select .cse0 (_ bv4 32))) (= (_ bv0 32) .cse1) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (let ((.cse2 (select (select |#memory_int| |testOne_~#f1~0.base|) |testOne_~#f1~0.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))))) (not (= |testOne_~#f1~0.base| |testOne_~#f2~0.base|)) (= |testOne_~#f2~0.offset| (_ bv0 32)) (= (bvadd (select |#valid| |testOne_~#f1~0.base|) (_ bv1 1)) (_ bv0 1)) (not (= (_ bv0 1) (select |#valid| |testOne_~#f2~0.base|)))) [2018-12-08 10:51:49,790 INFO L444 ceAbstractionStarter]: At program point L130(line 130) the Hoare annotation is: (and (not (= |testOne_~#f1~0.base| |testOne_~#f2~0.base|)) (= (_ bv1 1) (select |#valid| |testOne_~#f2~0.base|)) (= |testOne_~#f2~0.offset| (_ bv0 32)) (= (bvadd (select |#valid| |testOne_~#f1~0.base|) (_ bv1 1)) (_ bv0 1))) [2018-12-08 10:51:49,790 INFO L448 ceAbstractionStarter]: For program point L131-1(line 131) no Hoare annotation was computed. [2018-12-08 10:51:49,790 INFO L448 ceAbstractionStarter]: For program point L133-3(line 133) no Hoare annotation was computed. [2018-12-08 10:51:49,790 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 10:51:49,790 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-12-08 10:51:49,790 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 10:51:49,790 INFO L448 ceAbstractionStarter]: For program point L162-1(line 162) no Hoare annotation was computed. [2018-12-08 10:51:49,790 INFO L444 ceAbstractionStarter]: At program point L160(line 160) the Hoare annotation is: (and (exists ((|v_returnsField_~#c~0.base_20| (_ BitVec 32))) (let ((.cse0 (select |#memory_int| |v_returnsField_~#c~0.base_20|))) (let ((.cse1 (select .cse0 (_ bv0 32)))) (and (= (_ bv0 1) (select |#valid| |v_returnsField_~#c~0.base_20|)) (= (select .cse0 (_ bv4 32)) (_ bv0 32)) (= (select .cse0 (_ bv8 32)) (_ bv0 32)) (= (_ bv0 32) .cse1) (= (let ((.cse2 (select (select |#memory_int| |testThree_~#f1~2.base|) |testThree_~#f1~2.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))))) (= (_ bv1 1) (select |#valid| |testThree_~#f1~2.base|)) (not (= (_ bv0 1) (select |#valid| |testThree_~#f2~2.base|))) (not (= |testThree_~#f1~2.base| |testThree_~#f2~2.base|))) [2018-12-08 10:51:49,791 INFO L444 ceAbstractionStarter]: At program point L159(line 159) the Hoare annotation is: (and (= (_ bv1 1) (select |#valid| |testThree_~#f1~2.base|)) (= (_ bv1 1) (select |#valid| |testThree_~#f2~2.base|)) (not (= |testThree_~#f1~2.base| |testThree_~#f2~2.base|))) [2018-12-08 10:51:49,791 INFO L448 ceAbstractionStarter]: For program point L160-1(line 160) no Hoare annotation was computed. [2018-12-08 10:51:49,791 INFO L448 ceAbstractionStarter]: For program point L162-3(line 162) no Hoare annotation was computed. [2018-12-08 10:51:49,791 INFO L448 ceAbstractionStarter]: For program point L159-1(line 159) no Hoare annotation was computed. [2018-12-08 10:51:49,791 INFO L448 ceAbstractionStarter]: For program point testThreeFINAL(lines 156 165) no Hoare annotation was computed. [2018-12-08 10:51:49,791 INFO L448 ceAbstractionStarter]: For program point testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION(line 162) no Hoare annotation was computed. [2018-12-08 10:51:49,791 INFO L448 ceAbstractionStarter]: For program point testThreeEXIT(lines 156 165) no Hoare annotation was computed. [2018-12-08 10:51:49,791 INFO L444 ceAbstractionStarter]: At program point testThreeENTRY(lines 156 165) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-12-08 10:51:49,791 INFO L448 ceAbstractionStarter]: For program point L162(line 162) no Hoare annotation was computed. [2018-12-08 10:51:49,791 INFO L444 ceAbstractionStarter]: At program point returnsStructureENTRY(lines 116 124) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-12-08 10:51:49,791 INFO L448 ceAbstractionStarter]: For program point returnsStructureFINAL(lines 116 124) no Hoare annotation was computed. [2018-12-08 10:51:49,791 INFO L448 ceAbstractionStarter]: For program point returnsStructureEXIT(lines 116 124) no Hoare annotation was computed. [2018-12-08 10:51:49,791 INFO L448 ceAbstractionStarter]: For program point returnsFieldEXIT(lines 106 114) no Hoare annotation was computed. [2018-12-08 10:51:49,791 INFO L444 ceAbstractionStarter]: At program point returnsFieldENTRY(lines 106 114) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-12-08 10:51:49,791 INFO L448 ceAbstractionStarter]: For program point returnsFieldFINAL(lines 106 114) no Hoare annotation was computed. [2018-12-08 10:51:49,791 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 10:51:49,791 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 10:51:49,791 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 10:51:49,791 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 10:51:49,791 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 167 173) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-12-08 10:51:49,791 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 167 173) no Hoare annotation was computed. [2018-12-08 10:51:49,791 INFO L448 ceAbstractionStarter]: For program point L170(line 170) no Hoare annotation was computed. [2018-12-08 10:51:49,792 INFO L451 ceAbstractionStarter]: At program point L169(line 169) the Hoare annotation is: true [2018-12-08 10:51:49,792 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 167 173) no Hoare annotation was computed. [2018-12-08 10:51:49,792 INFO L451 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: true [2018-12-08 10:51:49,792 INFO L448 ceAbstractionStarter]: For program point testTwoEXIT(lines 139 153) no Hoare annotation was computed. [2018-12-08 10:51:49,792 INFO L448 ceAbstractionStarter]: For program point L147(line 147) no Hoare annotation was computed. [2018-12-08 10:51:49,792 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-12-08 10:51:49,792 INFO L448 ceAbstractionStarter]: For program point L145-1(line 145) no Hoare annotation was computed. [2018-12-08 10:51:49,792 INFO L444 ceAbstractionStarter]: At program point L143(line 143) the Hoare annotation is: (and (= (_ bv1 1) (select |#valid| |testTwo_~#f2~1.base|)) (not (= (_ bv0 1) (select |#valid| |testTwo_~#f1~1.base|))) (= (_ bv0 32) |testTwo_~#f2~1.offset|) (exists ((|v_returnsStructure_~#c~1.base_21| (_ BitVec 32))) (let ((.cse0 (select |#memory_int| |v_returnsStructure_~#c~1.base_21|))) (let ((.cse1 (select .cse0 (_ bv0 32)))) (and (= (select .cse0 (_ bv8 32)) (_ bv0 32)) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (let ((.cse2 (select (select |#memory_int| |testTwo_~#f1~1.base|) |testTwo_~#f1~1.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))) (= (select .cse0 (_ bv4 32)) (_ bv0 32)) (= (_ bv0 1) (select |#valid| |v_returnsStructure_~#c~1.base_21|)) (= .cse1 (_ bv0 32)))))) (not (= |testTwo_~#f1~1.base| |testTwo_~#f2~1.base|)) (= (_ bv0 32) |testTwo_~#f1~1.offset|)) [2018-12-08 10:51:49,792 INFO L448 ceAbstractionStarter]: For program point L143-1(line 143) no Hoare annotation was computed. [2018-12-08 10:51:49,792 INFO L444 ceAbstractionStarter]: At program point L145-3(line 145) the Hoare annotation is: (and (= (_ bv1 1) (select |#valid| |testTwo_~#f2~1.base|)) (not (= (_ bv0 1) (select |#valid| |testTwo_~#f1~1.base|))) (= (_ bv0 32) |testTwo_~#f2~1.offset|) (not (= |testTwo_~#f1~1.base| |testTwo_~#f2~1.base|)) (exists ((|v_returnsStructure_~#c~1.base_40| (_ BitVec 32))) (= (select |#valid| |v_returnsStructure_~#c~1.base_40|) (_ bv0 1))) (= (_ bv0 32) |testTwo_~#f1~1.offset|)) [2018-12-08 10:51:49,792 INFO L448 ceAbstractionStarter]: For program point testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION(line 150) no Hoare annotation was computed. [2018-12-08 10:51:49,792 INFO L448 ceAbstractionStarter]: For program point testTwoFINAL(lines 139 153) no Hoare annotation was computed. [2018-12-08 10:51:49,792 INFO L448 ceAbstractionStarter]: For program point testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2018-12-08 10:51:49,792 INFO L448 ceAbstractionStarter]: For program point L150(line 150) no Hoare annotation was computed. [2018-12-08 10:51:49,792 INFO L448 ceAbstractionStarter]: For program point L150-1(line 150) no Hoare annotation was computed. [2018-12-08 10:51:49,792 INFO L444 ceAbstractionStarter]: At program point L148(line 148) the Hoare annotation is: (let ((.cse3 (select |#valid| |testTwo_~#f1~1.base|))) (and (exists ((|v_returnsField_~#c~0.base_4| (_ BitVec 32))) (let ((.cse0 (select |#memory_int| |v_returnsField_~#c~0.base_4|))) (let ((.cse1 (select .cse0 (_ bv0 32)))) (and (= (select |#valid| |v_returnsField_~#c~0.base_4|) (_ bv0 1)) (= (select .cse0 (_ bv4 32)) (_ bv0 32)) (= (select .cse0 (_ bv8 32)) (_ bv0 32)) (= .cse1 (_ bv0 32)) (= (let ((.cse2 (select (select |#memory_int| |testTwo_~#f1~1.base|) |testTwo_~#f1~1.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))))) (= (_ bv1 1) .cse3) (= (_ bv0 32) |testTwo_~#f2~1.offset|) (not (= |testTwo_~#f1~1.base| |testTwo_~#f2~1.base|)) (= .cse3 (select |#valid| |testTwo_~#f2~1.base|)) (= (_ bv0 32) |testTwo_~#f1~1.offset|))) [2018-12-08 10:51:49,792 INFO L448 ceAbstractionStarter]: For program point L148-1(line 148) no Hoare annotation was computed. [2018-12-08 10:51:49,793 INFO L448 ceAbstractionStarter]: For program point L150-3(line 150) no Hoare annotation was computed. [2018-12-08 10:51:49,793 INFO L444 ceAbstractionStarter]: At program point testTwoENTRY(lines 139 153) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-12-08 10:51:49,793 INFO L444 ceAbstractionStarter]: At program point L142(line 142) the Hoare annotation is: (and (= (_ bv1 1) (select |#valid| |testTwo_~#f2~1.base|)) (= (_ bv1 1) (select |#valid| |testTwo_~#f1~1.base|)) (= (_ bv0 32) |testTwo_~#f2~1.offset|) (not (= |testTwo_~#f1~1.base| |testTwo_~#f2~1.base|)) (= (_ bv0 32) |testTwo_~#f1~1.offset|)) [2018-12-08 10:51:49,793 INFO L448 ceAbstractionStarter]: For program point L142-1(line 142) no Hoare annotation was computed. [2018-12-08 10:51:49,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 10:51:49 BoogieIcfgContainer [2018-12-08 10:51:49,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 10:51:49,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 10:51:49,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 10:51:49,795 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 10:51:49,795 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:49:20" (3/4) ... [2018-12-08 10:51:49,797 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 10:51:49,802 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure testOne [2018-12-08 10:51:49,802 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 10:51:49,802 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure testThree [2018-12-08 10:51:49,802 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure returnsStructure [2018-12-08 10:51:49,802 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure returnsField [2018-12-08 10:51:49,802 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 10:51:49,802 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure testTwo [2018-12-08 10:51:49,805 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2018-12-08 10:51:49,806 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-08 10:51:49,806 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 10:51:49,806 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 10:51:49,831 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6ff49cb9-7461-460f-87ed-bac20b78fc05/bin-2019/uautomizer/witness.graphml [2018-12-08 10:51:49,831 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 10:51:49,832 INFO L168 Benchmark]: Toolchain (without parser) took 150208.51 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 241.2 MB). Free memory was 944.7 MB in the beginning and 793.7 MB in the end (delta: 151.0 MB). Peak memory consumption was 392.2 MB. Max. memory is 11.5 GB. [2018-12-08 10:51:49,832 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 10:51:49,832 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.24 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 927.3 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-12-08 10:51:49,832 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.00 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 10:51:49,832 INFO L168 Benchmark]: Boogie Preprocessor took 23.04 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 10:51:49,833 INFO L168 Benchmark]: RCFGBuilder took 250.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -171.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-12-08 10:51:49,833 INFO L168 Benchmark]: TraceAbstraction took 149724.67 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 105.9 MB). Free memory was 1.1 GB in the beginning and 798.2 MB in the end (delta: 300.2 MB). Peak memory consumption was 406.1 MB. Max. memory is 11.5 GB. [2018-12-08 10:51:49,833 INFO L168 Benchmark]: Witness Printer took 36.71 ms. Allocated memory is still 1.3 GB. Free memory was 798.2 MB in the beginning and 793.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 11.5 GB. [2018-12-08 10:51:49,834 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.24 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 927.3 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.00 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.04 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 250.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -171.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 149724.67 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 105.9 MB). Free memory was 1.1 GB in the beginning and 798.2 MB in the end (delta: 300.2 MB). Peak memory consumption was 406.1 MB. Max. memory is 11.5 GB. * Witness Printer took 36.71 ms. Allocated memory is still 1.3 GB. Free memory was 798.2 MB in the beginning and 793.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 133]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 162]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 145]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 150]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 59 locations, 4 error locations. SAFE Result, 149.6s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 54.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 146 SDtfs, 17 SDslu, 942 SDs, 0 SdLazy, 990 SolverSat, 132 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 31.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 364 GetRequests, 260 SyntacticMatches, 15 SemanticMatches, 89 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 103.9s 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, 94.0s InterpolantComputationTime, 324 NumberOfCodeBlocks, 324 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 316 ConstructedInterpolants, 74 QuantifiedInterpolants, 209127 SizeOfPredicates, 85 NumberOfNonLiveVariables, 1388 ConjunctsInSsa, 288 ConjunctsInUnsatCore, 8 InterpolantComputations, 0 PerfectInterpolantSequences, 136/156 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...