./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/list-simple/dll2c_append_equal_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/list-simple/dll2c_append_equal_true-unreach-call_true-valid-memsafety.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 1f3e231c5b77f9ab25b28372001f508e3e47c051 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/list-simple/dll2c_append_equal_true-unreach-call_true-valid-memsafety.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 1f3e231c5b77f9ab25b28372001f508e3e47c051 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_21 input size 6 context size 6 output size 6 --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 16:21:44,370 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 16:21:44,372 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 16:21:44,389 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 16:21:44,390 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 16:21:44,391 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 16:21:44,394 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 16:21:44,396 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 16:21:44,398 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 16:21:44,399 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 16:21:44,400 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 16:21:44,401 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 16:21:44,402 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 16:21:44,403 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 16:21:44,404 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 16:21:44,405 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 16:21:44,406 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 16:21:44,408 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 16:21:44,411 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 16:21:44,413 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 16:21:44,414 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 16:21:44,418 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 16:21:44,422 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 16:21:44,424 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 16:21:44,426 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 16:21:44,427 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 16:21:44,429 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 16:21:44,429 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 16:21:44,432 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 16:21:44,434 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 16:21:44,434 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 16:21:44,435 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 16:21:44,435 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 16:21:44,436 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 16:21:44,436 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 16:21:44,438 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 16:21:44,438 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 16:21:44,467 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 16:21:44,469 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 16:21:44,470 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 16:21:44,470 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 16:21:44,470 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 16:21:44,470 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 16:21:44,471 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 16:21:44,474 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 16:21:44,474 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 16:21:44,474 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 16:21:44,475 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 16:21:44,475 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 16:21:44,475 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 16:21:44,475 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 16:21:44,475 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 16:21:44,476 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 16:21:44,477 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 16:21:44,477 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 16:21:44,477 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 16:21:44,477 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 16:21:44,477 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 16:21:44,477 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 16:21:44,480 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 16:21:44,480 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 16:21:44,480 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 16:21:44,481 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 16:21:44,481 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 16:21:44,481 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 1f3e231c5b77f9ab25b28372001f508e3e47c051 [2019-01-14 16:21:44,521 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 16:21:44,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 16:21:44,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 16:21:44,543 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 16:21:44,544 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 16:21:44,544 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-simple/dll2c_append_equal_true-unreach-call_true-valid-memsafety.i [2019-01-14 16:21:44,603 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdcfb42aa/2c6b4e113680430ebea03a8654576923/FLAGda3944475 [2019-01-14 16:21:45,096 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 16:21:45,097 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-simple/dll2c_append_equal_true-unreach-call_true-valid-memsafety.i [2019-01-14 16:21:45,110 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdcfb42aa/2c6b4e113680430ebea03a8654576923/FLAGda3944475 [2019-01-14 16:21:45,395 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdcfb42aa/2c6b4e113680430ebea03a8654576923 [2019-01-14 16:21:45,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 16:21:45,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 16:21:45,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 16:21:45,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 16:21:45,407 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 16:21:45,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:21:45" (1/1) ... [2019-01-14 16:21:45,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ed58395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:21:45, skipping insertion in model container [2019-01-14 16:21:45,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:21:45" (1/1) ... [2019-01-14 16:21:45,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 16:21:45,462 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 16:21:45,811 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 16:21:45,823 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 16:21:45,884 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 16:21:45,952 INFO L195 MainTranslator]: Completed translation [2019-01-14 16:21:45,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:21:45 WrapperNode [2019-01-14 16:21:45,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 16:21:46,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 16:21:46,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 16:21:46,036 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 16:21:46,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:21:45" (1/1) ... [2019-01-14 16:21:46,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:21:45" (1/1) ... [2019-01-14 16:21:46,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 16:21:46,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 16:21:46,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 16:21:46,131 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 16:21:46,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:21:45" (1/1) ... [2019-01-14 16:21:46,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:21:45" (1/1) ... [2019-01-14 16:21:46,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:21:45" (1/1) ... [2019-01-14 16:21:46,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:21:45" (1/1) ... [2019-01-14 16:21:46,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:21:45" (1/1) ... [2019-01-14 16:21:46,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:21:45" (1/1) ... [2019-01-14 16:21:46,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:21:45" (1/1) ... [2019-01-14 16:21:46,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 16:21:46,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 16:21:46,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 16:21:46,168 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 16:21:46,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:21:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-14 16:21:46,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 16:21:46,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 16:21:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-01-14 16:21:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 16:21:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-01-14 16:21:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-01-14 16:21:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 16:21:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-01-14 16:21:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 16:21:46,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 16:21:46,873 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 16:21:46,874 INFO L286 CfgBuilder]: Removed 25 assue(true) statements. [2019-01-14 16:21:46,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:21:46 BoogieIcfgContainer [2019-01-14 16:21:46,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 16:21:46,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 16:21:46,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 16:21:46,879 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 16:21:46,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 04:21:45" (1/3) ... [2019-01-14 16:21:46,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e329ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 04:21:46, skipping insertion in model container [2019-01-14 16:21:46,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:21:45" (2/3) ... [2019-01-14 16:21:46,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e329ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 04:21:46, skipping insertion in model container [2019-01-14 16:21:46,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:21:46" (3/3) ... [2019-01-14 16:21:46,884 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_append_equal_true-unreach-call_true-valid-memsafety.i [2019-01-14 16:21:46,895 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 16:21:46,904 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 16:21:46,921 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 16:21:46,954 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 16:21:46,955 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 16:21:46,955 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 16:21:46,955 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 16:21:46,956 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 16:21:46,956 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 16:21:46,956 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 16:21:46,956 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 16:21:46,956 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 16:21:46,973 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2019-01-14 16:21:46,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-01-14 16:21:46,980 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 16:21:46,981 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 16:21:46,984 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 16:21:46,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 16:21:46,991 INFO L82 PathProgramCache]: Analyzing trace with hash -978429474, now seen corresponding path program 1 times [2019-01-14 16:21:46,993 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 16:21:46,994 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 16:21:47,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:21:47,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:21:47,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:21:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 16:21:47,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 16:21:47,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 16:21:47,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 16:21:47,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 16:21:47,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 16:21:47,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 16:21:47,257 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2019-01-14 16:21:47,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 16:21:47,307 INFO L93 Difference]: Finished difference Result 64 states and 89 transitions. [2019-01-14 16:21:47,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 16:21:47,309 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-01-14 16:21:47,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 16:21:47,318 INFO L225 Difference]: With dead ends: 64 [2019-01-14 16:21:47,319 INFO L226 Difference]: Without dead ends: 31 [2019-01-14 16:21:47,322 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 16:21:47,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-01-14 16:21:47,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2019-01-14 16:21:47,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-01-14 16:21:47,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-01-14 16:21:47,360 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 16 [2019-01-14 16:21:47,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 16:21:47,360 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-01-14 16:21:47,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 16:21:47,361 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-01-14 16:21:47,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-01-14 16:21:47,362 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 16:21:47,362 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 16:21:47,362 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 16:21:47,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 16:21:47,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1498712942, now seen corresponding path program 1 times [2019-01-14 16:21:47,363 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 16:21:47,363 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 16:21:47,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:21:47,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:21:47,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:21:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 16:21:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 16:21:48,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 16:21:48,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-01-14 16:21:48,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-01-14 16:21:48,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-01-14 16:21:48,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-01-14 16:21:48,422 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 12 states. [2019-01-14 16:21:49,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 16:21:49,511 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2019-01-14 16:21:49,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-01-14 16:21:49,515 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2019-01-14 16:21:49,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 16:21:49,516 INFO L225 Difference]: With dead ends: 49 [2019-01-14 16:21:49,516 INFO L226 Difference]: Without dead ends: 29 [2019-01-14 16:21:49,518 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2019-01-14 16:21:49,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-01-14 16:21:49,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2019-01-14 16:21:49,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-01-14 16:21:49,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2019-01-14 16:21:49,525 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 22 [2019-01-14 16:21:49,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 16:21:49,525 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2019-01-14 16:21:49,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-01-14 16:21:49,526 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2019-01-14 16:21:49,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-01-14 16:21:49,526 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 16:21:49,527 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 16:21:49,527 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 16:21:49,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 16:21:49,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1496865900, now seen corresponding path program 1 times [2019-01-14 16:21:49,528 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 16:21:49,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 16:21:49,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:21:49,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:21:49,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:21:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 16:21:50,380 WARN L181 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 33 [2019-01-14 16:21:50,611 WARN L181 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2019-01-14 16:21:51,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 16:21:51,917 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 16:21:51,918 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 16:21:51,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:21:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 16:21:52,019 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 16:21:52,076 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 [2019-01-14 16:21:52,108 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:52,109 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2019-01-14 16:21:52,110 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 16:21:52,120 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:52,145 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:52,145 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:26 [2019-01-14 16:21:52,400 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:52,402 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:52,403 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:52,404 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:52,406 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 [2019-01-14 16:21:52,407 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-14 16:21:52,440 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:52,440 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:44 [2019-01-14 16:21:52,516 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2019-01-14 16:21:52,520 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2019-01-14 16:21:52,521 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 16:21:52,523 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:52,562 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:52,563 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:54, output treesize:50 [2019-01-14 16:21:52,648 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2019-01-14 16:21:52,658 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:52,660 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2019-01-14 16:21:52,661 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 16:21:52,670 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:52,713 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:52,713 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:65, output treesize:50 [2019-01-14 16:21:52,881 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 29 treesize of output 30 [2019-01-14 16:21:52,905 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 16 treesize of output 1 [2019-01-14 16:21:52,906 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 16:21:52,938 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:52,995 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:52,996 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:66, output treesize:47 [2019-01-14 16:21:53,155 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2019-01-14 16:21:53,163 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2019-01-14 16:21:53,163 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 16:21:53,208 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 19 treesize of output 20 [2019-01-14 16:21:53,214 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2019-01-14 16:21:53,214 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-14 16:21:53,223 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:53,231 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:53,284 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 23 treesize of output 32 [2019-01-14 16:21:53,289 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 16 treesize of output 15 [2019-01-14 16:21:53,290 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-14 16:21:53,296 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:53,388 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 27 treesize of output 29 [2019-01-14 16:21:53,395 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 27 [2019-01-14 16:21:53,396 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-01-14 16:21:53,403 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:53,437 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-14 16:21:53,438 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:102, output treesize:76 [2019-01-14 16:21:53,626 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:53,628 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:53,629 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:53,633 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:53,634 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:53,635 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:53,637 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 33 treesize of output 61 [2019-01-14 16:21:53,638 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-14 16:21:53,706 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. [2019-01-14 16:21:53,706 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:133, output treesize:121 [2019-01-14 16:21:53,841 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:53,859 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 35 treesize of output 36 [2019-01-14 16:21:53,876 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 24 treesize of output 27 [2019-01-14 16:21:53,883 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:53,884 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 27 treesize of output 35 [2019-01-14 16:21:53,892 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:53,895 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:53,897 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:53,905 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 29 treesize of output 37 [2019-01-14 16:21:53,906 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-14 16:21:53,925 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:53,936 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:53,957 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:54,112 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:54,134 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:54,146 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:54,186 INFO L303 Elim1Store]: Index analysis took 114 ms [2019-01-14 16:21:54,189 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 127 [2019-01-14 16:21:54,198 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 24 treesize of output 27 [2019-01-14 16:21:54,207 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:54,209 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 27 treesize of output 35 [2019-01-14 16:21:54,217 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:54,218 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:54,221 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:54,227 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 29 treesize of output 37 [2019-01-14 16:21:54,228 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-01-14 16:21:54,246 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:54,262 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:54,306 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:54,393 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-14 16:21:54,427 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-14 16:21:54,611 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-14 16:21:54,616 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-14 16:21:54,693 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 41 treesize of output 54 [2019-01-14 16:21:54,704 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 18 treesize of output 21 [2019-01-14 16:21:54,712 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:54,715 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 21 treesize of output 29 [2019-01-14 16:21:54,721 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:54,722 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:54,723 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:54,731 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 23 treesize of output 46 [2019-01-14 16:21:54,732 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2019-01-14 16:21:54,746 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:54,755 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:54,770 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:54,825 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 5 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-01-14 16:21:54,826 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:222, output treesize:153 [2019-01-14 16:21:55,168 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:55,198 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:55,222 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:55,233 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:55,251 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:55,258 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:55,259 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:21:55,739 INFO L303 Elim1Store]: Index analysis took 617 ms [2019-01-14 16:21:55,741 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3076 treesize of output 1577 [2019-01-14 16:21:56,799 WARN L181 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 170 DAG size of output: 100 [2019-01-14 16:21:56,851 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 50 [2019-01-14 16:21:56,852 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-01-14 16:21:57,259 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:57,268 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:57,275 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:57,285 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:57,290 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:57,292 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:21:57,710 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:21:57,755 INFO L303 Elim1Store]: Index analysis took 527 ms [2019-01-14 16:21:57,757 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1384 treesize of output 1244 [2019-01-14 16:21:57,786 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:57,868 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 4 case distinctions, treesize of input 154 treesize of output 109 [2019-01-14 16:21:57,870 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 4 xjuncts. [2019-01-14 16:21:58,627 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:58,645 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 1345 treesize of output 1229 [2019-01-14 16:21:58,663 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 1164 treesize of output 1271 [2019-01-14 16:21:58,664 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-14 16:21:58,858 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:58,875 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:58,895 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 1345 treesize of output 1229 [2019-01-14 16:21:58,927 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 1164 treesize of output 1271 [2019-01-14 16:21:58,928 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-01-14 16:21:59,212 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:21:59,243 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:21:59,258 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 1347 treesize of output 1231 [2019-01-14 16:21:59,267 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 1164 treesize of output 1271 [2019-01-14 16:21:59,268 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-01-14 16:21:59,504 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:00,614 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:00,631 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:00,641 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:00,712 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:00,749 INFO L303 Elim1Store]: Index analysis took 183 ms [2019-01-14 16:22:00,751 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1350 treesize of output 1158 [2019-01-14 16:22:00,788 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:22:00,800 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:22:00,801 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 1063 treesize of output 972 [2019-01-14 16:22:00,802 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:01,005 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:01,043 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:01,047 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:01,051 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:01,113 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:01,143 INFO L303 Elim1Store]: Index analysis took 135 ms [2019-01-14 16:22:01,144 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1348 treesize of output 1156 [2019-01-14 16:22:01,162 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:22:01,162 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:22:01,164 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 1063 treesize of output 972 [2019-01-14 16:22:01,165 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:01,372 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:01,426 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:01,449 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:01,475 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:01,587 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:01,641 INFO L303 Elim1Store]: Index analysis took 266 ms [2019-01-14 16:22:01,643 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1348 treesize of output 1156 [2019-01-14 16:22:01,683 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:22:01,692 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:22:01,694 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 1063 treesize of output 972 [2019-01-14 16:22:01,694 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:02,000 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:02,757 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:02,766 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 794 treesize of output 690 [2019-01-14 16:22:02,777 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2019-01-14 16:22:02,778 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-14 16:22:03,010 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:03,067 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:03,134 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:03,136 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:22:03,136 INFO L303 Elim1Store]: Index analysis took 139 ms [2019-01-14 16:22:03,190 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 10 case distinctions, treesize of input 639 treesize of output 772 [2019-01-14 16:22:03,194 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 4 xjuncts. [2019-01-14 16:22:04,096 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2019-01-14 16:22:04,106 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:04,114 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 792 treesize of output 690 [2019-01-14 16:22:04,127 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:04,131 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:04,134 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:04,157 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:04,158 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:22:04,159 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 636 treesize of output 671 [2019-01-14 16:22:04,160 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:04,340 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 9 treesize of output 1 [2019-01-14 16:22:04,340 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:04,480 INFO L267 ElimStorePlain]: Start of recursive call 21: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:04,496 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:04,505 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 792 treesize of output 690 [2019-01-14 16:22:04,523 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:04,574 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:04,574 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:22:04,576 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 634 treesize of output 659 [2019-01-14 16:22:04,576 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:04,801 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 9 treesize of output 1 [2019-01-14 16:22:04,802 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:04,991 INFO L267 ElimStorePlain]: Start of recursive call 24: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:06,030 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 4 xjuncts. [2019-01-14 16:22:06,044 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:06,049 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:06,055 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:06,087 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:06,119 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:06,133 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:22:06,546 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:22:06,588 INFO L303 Elim1Store]: Index analysis took 555 ms [2019-01-14 16:22:06,590 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1368 treesize of output 1217 [2019-01-14 16:22:06,607 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:06,660 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 4 case distinctions, treesize of input 154 treesize of output 109 [2019-01-14 16:22:06,662 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 4 xjuncts. [2019-01-14 16:22:07,263 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:07,268 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:07,282 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:07,290 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:07,376 INFO L303 Elim1Store]: Index analysis took 125 ms [2019-01-14 16:22:07,377 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1349 treesize of output 1011 [2019-01-14 16:22:07,399 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 891 treesize of output 863 [2019-01-14 16:22:07,401 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-14 16:22:07,952 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:22:07,953 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:22:07,954 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 873 treesize of output 908 [2019-01-14 16:22:08,163 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 16:22:08,164 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_19 input size 6 context size 6 output size 6 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:294) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-01-14 16:22:08,168 INFO L168 Benchmark]: Toolchain (without parser) took 22769.51 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 241.7 MB). Free memory was 946.0 MB in the beginning and 862.0 MB in the end (delta: 84.0 MB). Peak memory consumption was 399.3 MB. Max. memory is 11.5 GB. [2019-01-14 16:22:08,169 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 16:22:08,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 552.47 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 924.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-01-14 16:22:08,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.72 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: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2019-01-14 16:22:08,171 INFO L168 Benchmark]: Boogie Preprocessor took 36.67 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 16:22:08,171 INFO L168 Benchmark]: RCFGBuilder took 707.56 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: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2019-01-14 16:22:08,172 INFO L168 Benchmark]: TraceAbstraction took 21291.84 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 168.3 MB). Free memory was 1.0 GB in the beginning and 862.0 MB in the end (delta: 155.0 MB). Peak memory consumption was 396.9 MB. Max. memory is 11.5 GB. [2019-01-14 16:22:08,181 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 552.47 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 924.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 94.72 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: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.67 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 707.56 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: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21291.84 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 168.3 MB). Free memory was 1.0 GB in the beginning and 862.0 MB in the end (delta: 155.0 MB). Peak memory consumption was 396.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_19 input size 6 context size 6 output size 6 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_19 input size 6 context size 6 output size 6: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-0ed9222-m [2019-01-14 16:22:10,376 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 16:22:10,378 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 16:22:10,390 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 16:22:10,390 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 16:22:10,392 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 16:22:10,393 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 16:22:10,395 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 16:22:10,397 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 16:22:10,398 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 16:22:10,399 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 16:22:10,399 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 16:22:10,400 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 16:22:10,402 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 16:22:10,403 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 16:22:10,404 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 16:22:10,405 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 16:22:10,407 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 16:22:10,409 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 16:22:10,411 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 16:22:10,412 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 16:22:10,413 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 16:22:10,416 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 16:22:10,416 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 16:22:10,417 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 16:22:10,418 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 16:22:10,419 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 16:22:10,420 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 16:22:10,421 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 16:22:10,423 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 16:22:10,423 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 16:22:10,424 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 16:22:10,424 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 16:22:10,424 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 16:22:10,426 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 16:22:10,427 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 16:22:10,428 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-14 16:22:10,447 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 16:22:10,447 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 16:22:10,449 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 16:22:10,449 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 16:22:10,449 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 16:22:10,449 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 16:22:10,450 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 16:22:10,454 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 16:22:10,454 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 16:22:10,454 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 16:22:10,455 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 16:22:10,455 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 16:22:10,455 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-14 16:22:10,456 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-14 16:22:10,456 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 16:22:10,456 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 16:22:10,456 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 16:22:10,456 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 16:22:10,456 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 16:22:10,457 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 16:22:10,458 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 16:22:10,459 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 16:22:10,459 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 16:22:10,459 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 16:22:10,459 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 16:22:10,459 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-14 16:22:10,460 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 16:22:10,460 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-14 16:22:10,460 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-14 16:22:10,461 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 1f3e231c5b77f9ab25b28372001f508e3e47c051 [2019-01-14 16:22:10,498 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 16:22:10,519 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 16:22:10,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 16:22:10,527 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 16:22:10,527 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 16:22:10,529 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-simple/dll2c_append_equal_true-unreach-call_true-valid-memsafety.i [2019-01-14 16:22:10,605 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/092562265/fdc1070d5a1b43e6ac7f5f56968d707b/FLAGb083234d4 [2019-01-14 16:22:11,056 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 16:22:11,058 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-simple/dll2c_append_equal_true-unreach-call_true-valid-memsafety.i [2019-01-14 16:22:11,075 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/092562265/fdc1070d5a1b43e6ac7f5f56968d707b/FLAGb083234d4 [2019-01-14 16:22:11,391 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/092562265/fdc1070d5a1b43e6ac7f5f56968d707b [2019-01-14 16:22:11,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 16:22:11,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 16:22:11,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 16:22:11,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 16:22:11,401 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 16:22:11,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:22:11" (1/1) ... [2019-01-14 16:22:11,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73631881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:22:11, skipping insertion in model container [2019-01-14 16:22:11,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:22:11" (1/1) ... [2019-01-14 16:22:11,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 16:22:11,471 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 16:22:11,808 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 16:22:11,824 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 16:22:11,958 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 16:22:12,026 INFO L195 MainTranslator]: Completed translation [2019-01-14 16:22:12,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:22:12 WrapperNode [2019-01-14 16:22:12,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 16:22:12,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 16:22:12,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 16:22:12,029 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 16:22:12,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:22:12" (1/1) ... [2019-01-14 16:22:12,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:22:12" (1/1) ... [2019-01-14 16:22:12,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 16:22:12,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 16:22:12,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 16:22:12,096 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 16:22:12,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:22:12" (1/1) ... [2019-01-14 16:22:12,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:22:12" (1/1) ... [2019-01-14 16:22:12,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:22:12" (1/1) ... [2019-01-14 16:22:12,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:22:12" (1/1) ... [2019-01-14 16:22:12,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:22:12" (1/1) ... [2019-01-14 16:22:12,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:22:12" (1/1) ... [2019-01-14 16:22:12,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:22:12" (1/1) ... [2019-01-14 16:22:12,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 16:22:12,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 16:22:12,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 16:22:12,164 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 16:22:12,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:22:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-14 16:22:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-01-14 16:22:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-01-14 16:22:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 16:22:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-01-14 16:22:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-01-14 16:22:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 16:22:12,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-01-14 16:22:12,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-01-14 16:22:12,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 16:22:12,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 16:22:13,352 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 16:22:13,352 INFO L286 CfgBuilder]: Removed 25 assue(true) statements. [2019-01-14 16:22:13,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:22:13 BoogieIcfgContainer [2019-01-14 16:22:13,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 16:22:13,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 16:22:13,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 16:22:13,359 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 16:22:13,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 04:22:11" (1/3) ... [2019-01-14 16:22:13,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696d72e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 04:22:13, skipping insertion in model container [2019-01-14 16:22:13,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:22:12" (2/3) ... [2019-01-14 16:22:13,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696d72e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 04:22:13, skipping insertion in model container [2019-01-14 16:22:13,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:22:13" (3/3) ... [2019-01-14 16:22:13,364 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_append_equal_true-unreach-call_true-valid-memsafety.i [2019-01-14 16:22:13,376 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 16:22:13,385 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 16:22:13,404 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 16:22:13,437 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 16:22:13,438 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 16:22:13,438 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 16:22:13,438 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 16:22:13,440 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 16:22:13,440 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 16:22:13,440 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 16:22:13,440 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 16:22:13,441 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 16:22:13,458 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2019-01-14 16:22:13,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-01-14 16:22:13,465 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 16:22:13,467 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 16:22:13,470 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 16:22:13,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 16:22:13,476 INFO L82 PathProgramCache]: Analyzing trace with hash -978429474, now seen corresponding path program 1 times [2019-01-14 16:22:13,483 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-14 16:22:13,483 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-14 16:22:13,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:22:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 16:22:13,657 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 16:22:13,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 16:22:13,729 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4 --incremental --print-success --lang smt --rewrite-divk (2)] Exception during sending of exit command (exit): Broken pipe [2019-01-14 16:22:13,737 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 16:22:13,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 16:22:13,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 16:22:13,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 16:22:13,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 16:22:13,757 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2019-01-14 16:22:13,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 16:22:13,836 INFO L93 Difference]: Finished difference Result 64 states and 89 transitions. [2019-01-14 16:22:13,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 16:22:13,838 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-01-14 16:22:13,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 16:22:13,850 INFO L225 Difference]: With dead ends: 64 [2019-01-14 16:22:13,851 INFO L226 Difference]: Without dead ends: 31 [2019-01-14 16:22:13,855 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 16:22:13,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-01-14 16:22:13,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2019-01-14 16:22:13,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-01-14 16:22:13,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-01-14 16:22:13,910 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 16 [2019-01-14 16:22:13,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 16:22:13,911 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-01-14 16:22:13,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 16:22:13,911 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-01-14 16:22:13,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-01-14 16:22:13,912 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 16:22:13,912 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 16:22:13,913 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 16:22:13,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 16:22:13,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1498712942, now seen corresponding path program 1 times [2019-01-14 16:22:13,916 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-14 16:22:13,916 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-14 16:22:13,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:22:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 16:22:14,172 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 16:22:14,715 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 13 treesize of output 10 [2019-01-14 16:22:14,725 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 10 treesize of output 9 [2019-01-14 16:22:14,725 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:14,752 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:14,920 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:15,003 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 71 [2019-01-14 16:22:15,017 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 62 treesize of output 61 [2019-01-14 16:22:15,054 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:15,058 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 49 treesize of output 52 [2019-01-14 16:22:15,100 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:15,113 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:15,138 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:15,189 INFO L303 Elim1Store]: Index analysis took 121 ms [2019-01-14 16:22:15,191 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 46 treesize of output 45 [2019-01-14 16:22:15,192 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:15,269 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:15,286 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:15,430 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 37 [2019-01-14 16:22:15,443 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:15,444 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 27 treesize of output 35 [2019-01-14 16:22:15,457 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:15,459 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:15,470 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 29 treesize of output 37 [2019-01-14 16:22:15,471 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:15,486 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:15,501 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:15,532 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-14 16:22:15,825 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-01-14 16:22:15,826 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 2 variables, input treesize:66, output treesize:98 [2019-01-14 16:22:16,071 WARN L181 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2019-01-14 16:22:16,351 WARN L181 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2019-01-14 16:22:16,468 INFO L303 Elim1Store]: Index analysis took 101 ms [2019-01-14 16:22:16,469 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 23 treesize of output 18 [2019-01-14 16:22:16,560 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2019-01-14 16:22:16,560 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:16,601 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:17,152 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-14 16:22:17,168 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-14 16:22:17,504 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 26 treesize of output 21 [2019-01-14 16:22:17,535 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 21 treesize of output 23 [2019-01-14 16:22:17,575 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2019-01-14 16:22:17,576 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:17,608 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:17,629 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:17,775 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 32 treesize of output 25 [2019-01-14 16:22:17,818 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:17,825 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 29 [2019-01-14 16:22:17,839 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 26 [2019-01-14 16:22:17,847 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2019-01-14 16:22:17,847 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:17,869 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:17,885 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:17,900 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:17,964 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 17 treesize of output 14 [2019-01-14 16:22:17,971 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 14 treesize of output 17 [2019-01-14 16:22:17,978 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 17 treesize of output 19 [2019-01-14 16:22:17,998 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 22 [2019-01-14 16:22:17,999 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:18,035 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:18,046 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:18,055 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:18,081 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:18,082 INFO L202 ElimStorePlain]: Needed 16 recursive calls to eliminate 5 variables, input treesize:109, output treesize:44 [2019-01-14 16:22:18,163 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 22 treesize of output 16 [2019-01-14 16:22:18,177 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 16 treesize of output 3 [2019-01-14 16:22:18,177 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:18,183 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:18,246 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 22 treesize of output 16 [2019-01-14 16:22:18,252 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 16 treesize of output 3 [2019-01-14 16:22:18,253 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:18,256 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:18,269 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:18,270 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:55, output treesize:16 [2019-01-14 16:22:18,317 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 15 treesize of output 11 [2019-01-14 16:22:18,324 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 11 treesize of output 3 [2019-01-14 16:22:18,325 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:18,327 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:18,335 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:18,336 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:9 [2019-01-14 16:22:18,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 16:22:18,373 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4 --incremental --print-success --lang smt --rewrite-divk (3)] Exception during sending of exit command (exit): Broken pipe [2019-01-14 16:22:18,389 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 16:22:18,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-01-14 16:22:18,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-01-14 16:22:18,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-01-14 16:22:18,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2019-01-14 16:22:18,395 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 14 states. [2019-01-14 16:22:21,259 WARN L181 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2019-01-14 16:22:21,980 WARN L181 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 76 [2019-01-14 16:22:27,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 16:22:27,299 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2019-01-14 16:22:27,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-01-14 16:22:27,300 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2019-01-14 16:22:27,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 16:22:27,301 INFO L225 Difference]: With dead ends: 59 [2019-01-14 16:22:27,301 INFO L226 Difference]: Without dead ends: 39 [2019-01-14 16:22:27,304 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2019-01-14 16:22:27,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-01-14 16:22:27,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2019-01-14 16:22:27,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-01-14 16:22:27,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2019-01-14 16:22:27,312 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 22 [2019-01-14 16:22:27,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 16:22:27,312 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2019-01-14 16:22:27,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-01-14 16:22:27,312 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2019-01-14 16:22:27,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-01-14 16:22:27,313 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 16:22:27,313 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 16:22:27,313 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 16:22:27,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 16:22:27,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1496865900, now seen corresponding path program 1 times [2019-01-14 16:22:27,315 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-14 16:22:27,315 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-14 16:22:27,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:22:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 16:22:27,751 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 16:22:27,796 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:27,797 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 [2019-01-14 16:22:27,806 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 [2019-01-14 16:22:27,807 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:27,815 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:27,839 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:27,840 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:30, output treesize:29 [2019-01-14 16:22:28,032 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:28,042 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:28,044 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:28,045 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 [2019-01-14 16:22:28,046 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:28,100 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. [2019-01-14 16:22:28,101 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:49, output treesize:48 [2019-01-14 16:22:28,248 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2019-01-14 16:22:28,268 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 10 treesize of output 9 [2019-01-14 16:22:28,269 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:28,296 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:28,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-14 16:22:28,368 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:60, output treesize:56 [2019-01-14 16:22:28,521 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2019-01-14 16:22:28,555 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:28,559 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2019-01-14 16:22:28,559 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:28,569 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:28,624 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. [2019-01-14 16:22:28,624 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:69, output treesize:54 [2019-01-14 16:22:28,752 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 27 treesize of output 28 [2019-01-14 16:22:28,762 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 16 treesize of output 1 [2019-01-14 16:22:28,762 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:28,771 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:28,828 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. [2019-01-14 16:22:28,829 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:51 [2019-01-14 16:22:29,025 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-14 16:22:29,058 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-14 16:22:29,504 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2019-01-14 16:22:29,517 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 [2019-01-14 16:22:29,517 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:29,618 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 34 treesize of output 33 [2019-01-14 16:22:29,631 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:29,638 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2019-01-14 16:22:29,639 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:29,670 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:29,693 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:29,853 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2019-01-14 16:22:29,873 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2019-01-14 16:22:29,873 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:30,037 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 21 treesize of output 22 [2019-01-14 16:22:30,057 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2019-01-14 16:22:30,058 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:30,159 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:30,237 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:30,326 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-01-14 16:22:30,326 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:114, output treesize:80 [2019-01-14 16:22:30,483 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:30,486 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:30,490 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:30,493 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:30,493 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:22:30,495 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 79 [2019-01-14 16:22:30,495 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:30,610 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. [2019-01-14 16:22:30,610 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:150, output treesize:141 [2019-01-14 16:22:30,811 WARN L181 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-01-14 16:22:30,870 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:22:31,480 INFO L303 Elim1Store]: Index analysis took 658 ms [2019-01-14 16:22:31,481 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 134 [2019-01-14 16:22:31,504 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 18 treesize of output 21 [2019-01-14 16:22:31,551 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 21 treesize of output 23 [2019-01-14 16:22:31,681 INFO L303 Elim1Store]: Index analysis took 128 ms [2019-01-14 16:22:31,682 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 23 treesize of output 15 [2019-01-14 16:22:31,683 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:31,771 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:31,861 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:32,169 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:32,844 INFO L303 Elim1Store]: Index analysis took 105 ms [2019-01-14 16:22:32,845 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 27 treesize of output 32 [2019-01-14 16:22:32,867 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 12 treesize of output 1 [2019-01-14 16:22:32,867 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:32,922 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:33,420 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 113 [2019-01-14 16:22:33,431 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 18 treesize of output 21 [2019-01-14 16:22:33,443 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 21 treesize of output 23 [2019-01-14 16:22:33,473 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 23 treesize of output 15 [2019-01-14 16:22:33,474 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:33,503 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:33,531 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:33,610 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:33,864 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 27 treesize of output 32 [2019-01-14 16:22:33,877 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 12 treesize of output 1 [2019-01-14 16:22:33,877 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:33,900 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:34,125 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 28 [2019-01-14 16:22:34,135 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 [2019-01-14 16:22:34,135 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:34,153 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:22:34,278 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 5 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-01-14 16:22:34,279 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 8 variables, input treesize:221, output treesize:166 [2019-01-14 16:22:34,516 WARN L181 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2019-01-14 16:22:34,816 WARN L181 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2019-01-14 16:22:38,213 INFO L303 Elim1Store]: Index analysis took 3382 ms [2019-01-14 16:22:38,214 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 74 [2019-01-14 16:22:38,691 INFO L303 Elim1Store]: Index analysis took 475 ms [2019-01-14 16:22:38,692 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 40 treesize of output 1 [2019-01-14 16:22:38,692 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 16:22:40,788 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:23:11,534 INFO L303 Elim1Store]: Index analysis took 2506 ms [2019-01-14 16:23:11,535 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 31 treesize of output 36 [2019-01-14 16:23:11,746 INFO L303 Elim1Store]: Index analysis took 207 ms [2019-01-14 16:23:11,747 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 16 treesize of output 1 [2019-01-14 16:23:11,747 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-14 16:23:13,191 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 16:23:32,840 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:23:33,120 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:23:38,600 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:23:45,716 INFO L303 Elim1Store]: Index analysis took 13756 ms [2019-01-14 16:23:45,718 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3038 treesize of output 1498 [2019-01-14 16:24:12,996 WARN L181 SmtUtils]: Spent 27.27 s on a formula simplification. DAG size of input: 155 DAG size of output: 93 [2019-01-14 16:24:13,655 INFO L303 Elim1Store]: Index analysis took 656 ms [2019-01-14 16:24:13,681 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 0 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 51 [2019-01-14 16:24:13,682 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2019-01-14 16:24:27,538 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:24:28,277 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:24:29,048 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:24:29,339 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:24:29,989 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:24:29,992 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:24:30,616 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:24:44,856 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:24:48,731 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:24:51,282 INFO L303 Elim1Store]: Index analysis took 24139 ms [2019-01-14 16:24:51,283 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1354 treesize of output 1208 [2019-01-14 16:24:54,459 INFO L303 Elim1Store]: Index analysis took 3170 ms [2019-01-14 16:24:54,861 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 183 treesize of output 144 [2019-01-14 16:24:54,874 INFO L267 ElimStorePlain]: Start of recursive call 9: 8 dim-0 vars, End of recursive call: 8 dim-0 vars, and 16 xjuncts. [2019-01-14 16:25:30,390 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:25:30,626 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:25:31,040 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:25:32,039 INFO L303 Elim1Store]: Index analysis took 1812 ms [2019-01-14 16:25:32,041 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 1358 treesize of output 995 [2019-01-14 16:25:32,413 INFO L701 Elim1Store]: detected not equals via solver [2019-01-14 16:25:32,947 INFO L303 Elim1Store]: Index analysis took 901 ms [2019-01-14 16:25:33,317 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 917 treesize of output 926 [2019-01-14 16:25:33,319 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-01-14 16:25:42,039 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 886 treesize of output 859 [2019-01-14 16:25:42,042 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-14 16:25:49,469 INFO L683 Elim1Store]: detected equality via solver [2019-01-14 16:25:49,472 INFO L303 Elim1Store]: Index analysis took 190 ms [2019-01-14 16:25:49,473 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 851 treesize of output 749 [2019-01-14 16:25:49,639 INFO L303 Elim1Store]: Index analysis took 165 ms [2019-01-14 16:25:49,841 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-14 16:25:49,842 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_21 input size 6 context size 6 output size 6 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:294) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-01-14 16:25:49,849 INFO L168 Benchmark]: Toolchain (without parser) took 218453.52 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 283.1 MB). Free memory was 946.0 MB in the beginning and 1.2 GB in the end (delta: -224.6 MB). Peak memory consumption was 356.9 MB. Max. memory is 11.5 GB. [2019-01-14 16:25:49,850 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 16:25:49,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 630.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2019-01-14 16:25:49,851 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-14 16:25:49,853 INFO L168 Benchmark]: Boogie Preprocessor took 68.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 16:25:49,853 INFO L168 Benchmark]: RCFGBuilder took 1189.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. [2019-01-14 16:25:49,854 INFO L168 Benchmark]: TraceAbstraction took 216493.56 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 152.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -99.2 MB). Peak memory consumption was 351.7 MB. Max. memory is 11.5 GB. [2019-01-14 16:25:49,858 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 630.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1189.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 216493.56 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 152.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -99.2 MB). Peak memory consumption was 351.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_21 input size 6 context size 6 output size 6 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_21 input size 6 context size 6 output size 6: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...