./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers2_false-valid-deref.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers2_false-valid-deref.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e872a0dffbf376eb2d8b1e3516401a8dafe115a6 ............................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers2_false-valid-deref.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e872a0dffbf376eb2d8b1e3516401a8dafe115a6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:58:16,236 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:58:16,237 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:58:16,245 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:58:16,245 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:58:16,246 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:58:16,246 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:58:16,248 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:58:16,249 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:58:16,250 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:58:16,250 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:58:16,251 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:58:16,251 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:58:16,252 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:58:16,253 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:58:16,253 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:58:16,254 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:58:16,255 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:58:16,257 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:58:16,258 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:58:16,259 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:58:16,259 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:58:16,261 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:58:16,261 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:58:16,262 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:58:16,262 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:58:16,263 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:58:16,264 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:58:16,264 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:58:16,265 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:58:16,265 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:58:16,266 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:58:16,266 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:58:16,266 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:58:16,267 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:58:16,267 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:58:16,268 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-11-18 10:58:16,279 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:58:16,279 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:58:16,279 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:58:16,280 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:58:16,280 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:58:16,280 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:58:16,280 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:58:16,280 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 10:58:16,280 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:58:16,280 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:58:16,280 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 10:58:16,280 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 10:58:16,280 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:58:16,281 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:58:16,281 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:58:16,281 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:58:16,281 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:58:16,282 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 10:58:16,282 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:58:16,282 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:58:16,282 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:58:16,282 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 10:58:16,282 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 10:58:16,282 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 10:58:16,283 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:58:16,283 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:58:16,283 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:58:16,283 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:58:16,283 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:58:16,283 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:58:16,283 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:58:16,283 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:58:16,283 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:58:16,283 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:58:16,284 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 10:58:16,284 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:58:16,284 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:58:16,284 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e872a0dffbf376eb2d8b1e3516401a8dafe115a6 [2018-11-18 10:58:16,307 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:58:16,316 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:58:16,318 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:58:16,319 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:58:16,320 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:58:16,320 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/getNumbers2_false-valid-deref.c [2018-11-18 10:58:16,362 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/data/72032f518/6f871c1056484763a946c76118521185/FLAGed83e0ae6 [2018-11-18 10:58:16,701 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:58:16,702 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/sv-benchmarks/c/memsafety-ext3/getNumbers2_false-valid-deref.c [2018-11-18 10:58:16,707 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/data/72032f518/6f871c1056484763a946c76118521185/FLAGed83e0ae6 [2018-11-18 10:58:17,145 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/data/72032f518/6f871c1056484763a946c76118521185 [2018-11-18 10:58:17,147 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:58:17,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:58:17,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:58:17,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:58:17,151 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:58:17,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:58:17" (1/1) ... [2018-11-18 10:58:17,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3275144b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:17, skipping insertion in model container [2018-11-18 10:58:17,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:58:17" (1/1) ... [2018-11-18 10:58:17,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:58:17,172 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:58:17,281 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:58:17,290 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:58:17,301 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:58:17,311 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:58:17,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:17 WrapperNode [2018-11-18 10:58:17,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:58:17,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:58:17,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:58:17,312 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:58:17,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:17" (1/1) ... [2018-11-18 10:58:17,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:17" (1/1) ... [2018-11-18 10:58:17,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:58:17,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:58:17,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:58:17,327 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:58:17,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:17" (1/1) ... [2018-11-18 10:58:17,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:17" (1/1) ... [2018-11-18 10:58:17,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:17" (1/1) ... [2018-11-18 10:58:17,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:17" (1/1) ... [2018-11-18 10:58:17,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:17" (1/1) ... [2018-11-18 10:58:17,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:17" (1/1) ... [2018-11-18 10:58:17,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:17" (1/1) ... [2018-11-18 10:58:17,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:58:17,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:58:17,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:58:17,344 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:58:17,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:58:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 10:58:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:58:17,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:58:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:58:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers2 [2018-11-18 10:58:17,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers2 [2018-11-18 10:58:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:58:17,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:58:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:58:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:58:17,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:58:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-18 10:58:17,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-18 10:58:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:58:17,569 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:58:17,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:58:17 BoogieIcfgContainer [2018-11-18 10:58:17,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:58:17,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:58:17,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:58:17,573 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:58:17,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:58:17" (1/3) ... [2018-11-18 10:58:17,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f98dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:58:17, skipping insertion in model container [2018-11-18 10:58:17,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:17" (2/3) ... [2018-11-18 10:58:17,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f98dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:58:17, skipping insertion in model container [2018-11-18 10:58:17,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:58:17" (3/3) ... [2018-11-18 10:58:17,576 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers2_false-valid-deref.c [2018-11-18 10:58:17,586 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:58:17,592 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-11-18 10:58:17,602 INFO L257 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2018-11-18 10:58:17,618 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:58:17,618 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 10:58:17,619 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:58:17,619 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:58:17,619 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:58:17,619 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:58:17,619 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:58:17,619 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:58:17,628 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-11-18 10:58:17,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 10:58:17,635 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:17,636 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:17,638 INFO L423 AbstractCegarLoop]: === Iteration 1 === [getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 10:58:17,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:17,641 INFO L82 PathProgramCache]: Analyzing trace with hash -2106365667, now seen corresponding path program 1 times [2018-11-18 10:58:17,643 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:58:17,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:58:17,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:58:17,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:58:17,680 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:58:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:17,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:17,771 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:58:17,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:58:17,771 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:58:17,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:58:17,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:58:17,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:58:17,785 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2018-11-18 10:58:17,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:17,836 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-11-18 10:58:17,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:58:17,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 10:58:17,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:17,844 INFO L225 Difference]: With dead ends: 40 [2018-11-18 10:58:17,844 INFO L226 Difference]: Without dead ends: 37 [2018-11-18 10:58:17,846 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:58:17,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-18 10:58:17,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-18 10:58:17,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 10:58:17,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2018-11-18 10:58:17,869 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 11 [2018-11-18 10:58:17,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:17,870 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2018-11-18 10:58:17,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:58:17,870 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2018-11-18 10:58:17,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 10:58:17,870 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:17,871 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:17,871 INFO L423 AbstractCegarLoop]: === Iteration 2 === [getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 10:58:17,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:17,871 INFO L82 PathProgramCache]: Analyzing trace with hash -2106365666, now seen corresponding path program 1 times [2018-11-18 10:58:17,871 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:58:17,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:58:17,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:58:17,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:58:17,873 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:58:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:17,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:17,969 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:58:17,969 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:58:17,969 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:58:17,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 10:58:17,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 10:58:17,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:58:17,970 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 4 states. [2018-11-18 10:58:18,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:18,023 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2018-11-18 10:58:18,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 10:58:18,024 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-18 10:58:18,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:18,025 INFO L225 Difference]: With dead ends: 41 [2018-11-18 10:58:18,025 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 10:58:18,026 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:58:18,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 10:58:18,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-11-18 10:58:18,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 10:58:18,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2018-11-18 10:58:18,030 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 11 [2018-11-18 10:58:18,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:18,031 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2018-11-18 10:58:18,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 10:58:18,031 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-11-18 10:58:18,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 10:58:18,031 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:18,031 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:18,032 INFO L423 AbstractCegarLoop]: === Iteration 3 === [getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 10:58:18,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:18,032 INFO L82 PathProgramCache]: Analyzing trace with hash -633749003, now seen corresponding path program 1 times [2018-11-18 10:58:18,032 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:58:18,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:58:18,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:58:18,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:58:18,033 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:58:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:18,158 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:18,159 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:58:18,159 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 10:58:18,159 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:58:18,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:58:18,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:58:18,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:58:18,160 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 6 states. [2018-11-18 10:58:18,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:18,229 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-11-18 10:58:18,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:58:18,230 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-11-18 10:58:18,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:18,230 INFO L225 Difference]: With dead ends: 40 [2018-11-18 10:58:18,231 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 10:58:18,231 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:58:18,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 10:58:18,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2018-11-18 10:58:18,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 10:58:18,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2018-11-18 10:58:18,235 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 15 [2018-11-18 10:58:18,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:18,235 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2018-11-18 10:58:18,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:58:18,235 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2018-11-18 10:58:18,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 10:58:18,236 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:18,236 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:18,236 INFO L423 AbstractCegarLoop]: === Iteration 4 === [getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 10:58:18,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:18,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1868308731, now seen corresponding path program 1 times [2018-11-18 10:58:18,237 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:58:18,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:58:18,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:58:18,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:58:18,238 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:58:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:18,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:18,275 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:58:18,276 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:58:18,276 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-11-18 10:58:18,278 INFO L202 CegarAbsIntRunner]: [0], [1], [3], [7], [12], [14], [38], [42], [45], [47], [48], [52], [56], [57], [58], [59], [60], [61], [62], [64] [2018-11-18 10:58:18,302 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:58:18,303 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:58:18,363 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) 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:429) 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:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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) Caused by: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:209) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translateStore(MappedTerm2Expression.java:291) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:157) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.AssumptionBuilder.constructBoogieAssumeStatement(AssumptionBuilder.java:75) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.getCachedCodeBlock(TermConjunctEvaluator.java:273) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:296) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:536) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:217) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:379) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-11-18 10:58:18,366 INFO L168 Benchmark]: Toolchain (without parser) took 1218.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 959.2 MB in the beginning and 1.0 GB in the end (delta: -80.2 MB). Peak memory consumption was 53.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:58:18,368 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:58:18,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.18 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:58:18,369 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.80 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:58:18,369 INFO L168 Benchmark]: Boogie Preprocessor took 16.04 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:58:18,369 INFO L168 Benchmark]: RCFGBuilder took 226.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:58:18,370 INFO L168 Benchmark]: TraceAbstraction took 795.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.5 MB). Peak memory consumption was 73.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:58:18,373 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 163.18 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.80 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.04 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 226.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 795.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.5 MB). Peak memory consumption was 73.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 10:58:19,884 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:58:19,885 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:58:19,893 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:58:19,893 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:58:19,893 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:58:19,894 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:58:19,895 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:58:19,897 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:58:19,897 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:58:19,898 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:58:19,898 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:58:19,899 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:58:19,900 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:58:19,901 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:58:19,901 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:58:19,902 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:58:19,903 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:58:19,904 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:58:19,906 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:58:19,906 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:58:19,907 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:58:19,909 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:58:19,909 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:58:19,909 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:58:19,910 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:58:19,911 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:58:19,911 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:58:19,912 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:58:19,912 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:58:19,913 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:58:19,913 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:58:19,913 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:58:19,914 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:58:19,914 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:58:19,915 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:58:19,915 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2018-11-18 10:58:19,926 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:58:19,926 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:58:19,927 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:58:19,927 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:58:19,927 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:58:19,927 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:58:19,927 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:58:19,927 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:58:19,928 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:58:19,928 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:58:19,928 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:58:19,928 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:58:19,929 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:58:19,929 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:58:19,929 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 10:58:19,929 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:58:19,929 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:58:19,929 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:58:19,929 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 10:58:19,929 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 10:58:19,930 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 10:58:19,930 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:58:19,930 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 10:58:19,930 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 10:58:19,930 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:58:19,930 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:58:19,930 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:58:19,931 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:58:19,931 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:58:19,931 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:58:19,931 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:58:19,931 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:58:19,931 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:58:19,931 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 10:58:19,932 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:58:19,932 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 10:58:19,932 INFO L133 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e872a0dffbf376eb2d8b1e3516401a8dafe115a6 [2018-11-18 10:58:19,961 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:58:19,969 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:58:19,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:58:19,972 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:58:19,972 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:58:19,973 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/getNumbers2_false-valid-deref.c [2018-11-18 10:58:20,009 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/data/5efdc2804/80c6949da3464f5ca38f00ad3daed336/FLAG321dbff6e [2018-11-18 10:58:20,416 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:58:20,416 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/sv-benchmarks/c/memsafety-ext3/getNumbers2_false-valid-deref.c [2018-11-18 10:58:20,420 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/data/5efdc2804/80c6949da3464f5ca38f00ad3daed336/FLAG321dbff6e [2018-11-18 10:58:20,431 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/data/5efdc2804/80c6949da3464f5ca38f00ad3daed336 [2018-11-18 10:58:20,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:58:20,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:58:20,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:58:20,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:58:20,437 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:58:20,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:58:20" (1/1) ... [2018-11-18 10:58:20,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@532259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:20, skipping insertion in model container [2018-11-18 10:58:20,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:58:20" (1/1) ... [2018-11-18 10:58:20,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:58:20,462 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:58:20,583 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:58:20,594 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:58:20,610 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:58:20,622 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:58:20,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:20 WrapperNode [2018-11-18 10:58:20,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:58:20,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:58:20,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:58:20,623 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:58:20,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:20" (1/1) ... [2018-11-18 10:58:20,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:20" (1/1) ... [2018-11-18 10:58:20,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:58:20,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:58:20,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:58:20,647 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:58:20,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:20" (1/1) ... [2018-11-18 10:58:20,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:20" (1/1) ... [2018-11-18 10:58:20,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:20" (1/1) ... [2018-11-18 10:58:20,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:20" (1/1) ... [2018-11-18 10:58:20,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:20" (1/1) ... [2018-11-18 10:58:20,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:20" (1/1) ... [2018-11-18 10:58:20,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:20" (1/1) ... [2018-11-18 10:58:20,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:58:20,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:58:20,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:58:20,673 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:58:20,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:58:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:58:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:58:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:58:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 10:58:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers2 [2018-11-18 10:58:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers2 [2018-11-18 10:58:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:58:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:58:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:58:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:58:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-18 10:58:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-18 10:58:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:58:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 10:58:20,989 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:58:20,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:58:20 BoogieIcfgContainer [2018-11-18 10:58:20,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:58:20,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:58:20,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:58:20,993 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:58:20,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:58:20" (1/3) ... [2018-11-18 10:58:20,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39967607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:58:20, skipping insertion in model container [2018-11-18 10:58:20,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:20" (2/3) ... [2018-11-18 10:58:20,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39967607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:58:20, skipping insertion in model container [2018-11-18 10:58:20,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:58:20" (3/3) ... [2018-11-18 10:58:20,996 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers2_false-valid-deref.c [2018-11-18 10:58:21,004 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:58:21,011 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-11-18 10:58:21,021 INFO L257 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2018-11-18 10:58:21,038 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:58:21,039 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:58:21,039 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 10:58:21,039 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:58:21,039 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:58:21,039 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:58:21,039 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:58:21,039 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:58:21,039 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:58:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-11-18 10:58:21,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 10:58:21,057 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:21,058 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:21,059 INFO L423 AbstractCegarLoop]: === Iteration 1 === [getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 10:58:21,063 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:21,063 INFO L82 PathProgramCache]: Analyzing trace with hash -2106365667, now seen corresponding path program 1 times [2018-11-18 10:58:21,065 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:58:21,066 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:58:21,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:58:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:21,120 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:21,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 10:58:21,157 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:21,175 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 10:58:21,175 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 10:58:21,196 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:21,223 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:21,224 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:9, output treesize:21 [2018-11-18 10:58:21,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:21,260 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:58:21,264 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:58:21,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:58:21,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:58:21,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:58:21,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:58:21,278 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2018-11-18 10:58:21,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:21,345 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-11-18 10:58:21,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:58:21,347 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 10:58:21,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:21,357 INFO L225 Difference]: With dead ends: 40 [2018-11-18 10:58:21,357 INFO L226 Difference]: Without dead ends: 37 [2018-11-18 10:58:21,360 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:58:21,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-18 10:58:21,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-18 10:58:21,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 10:58:21,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2018-11-18 10:58:21,388 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 11 [2018-11-18 10:58:21,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:21,389 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2018-11-18 10:58:21,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:58:21,389 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2018-11-18 10:58:21,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 10:58:21,389 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:21,390 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:21,390 INFO L423 AbstractCegarLoop]: === Iteration 2 === [getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 10:58:21,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:21,390 INFO L82 PathProgramCache]: Analyzing trace with hash -2106365666, now seen corresponding path program 1 times [2018-11-18 10:58:21,391 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:58:21,391 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:58:21,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:58:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:21,427 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:21,432 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:58:21,433 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:21,455 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:58:21,455 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 10:58:21,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:21,486 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:58:21,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:58:21,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:58:21,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 10:58:21,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 10:58:21,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:58:21,492 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 4 states. [2018-11-18 10:58:21,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:21,596 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2018-11-18 10:58:21,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 10:58:21,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-18 10:58:21,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:21,598 INFO L225 Difference]: With dead ends: 41 [2018-11-18 10:58:21,598 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 10:58:21,598 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:58:21,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 10:58:21,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-11-18 10:58:21,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 10:58:21,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2018-11-18 10:58:21,602 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 11 [2018-11-18 10:58:21,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:21,603 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2018-11-18 10:58:21,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 10:58:21,604 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-11-18 10:58:21,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 10:58:21,604 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:21,605 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:21,605 INFO L423 AbstractCegarLoop]: === Iteration 3 === [getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 10:58:21,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:21,605 INFO L82 PathProgramCache]: Analyzing trace with hash -633749003, now seen corresponding path program 1 times [2018-11-18 10:58:21,606 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:58:21,606 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:58:21,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:58:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:21,652 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:21,655 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:58:21,656 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:21,661 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:58:21,661 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 10:58:21,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:21,716 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:22,040 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:22,042 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:58:22,042 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:58:22,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:58:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:22,089 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:22,094 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:58:22,094 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:22,110 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:58:22,110 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 10:58:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:22,130 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:22,216 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:22,242 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 10:58:22,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4, 4] total 9 [2018-11-18 10:58:22,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 10:58:22,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 10:58:22,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-11-18 10:58:22,243 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 10 states. [2018-11-18 10:58:22,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:22,624 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2018-11-18 10:58:22,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:58:22,625 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2018-11-18 10:58:22,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:22,627 INFO L225 Difference]: With dead ends: 58 [2018-11-18 10:58:22,627 INFO L226 Difference]: Without dead ends: 58 [2018-11-18 10:58:22,628 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2018-11-18 10:58:22,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-18 10:58:22,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2018-11-18 10:58:22,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-18 10:58:22,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2018-11-18 10:58:22,634 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 15 [2018-11-18 10:58:22,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:22,634 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2018-11-18 10:58:22,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 10:58:22,634 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2018-11-18 10:58:22,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 10:58:22,635 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:22,635 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:22,635 INFO L423 AbstractCegarLoop]: === Iteration 4 === [getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 10:58:22,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:22,636 INFO L82 PathProgramCache]: Analyzing trace with hash 309221148, now seen corresponding path program 1 times [2018-11-18 10:58:22,636 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:58:22,636 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:58:22,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:58:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:22,691 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:22,728 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:22,790 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:22,794 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:58:22,795 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:58:22,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:58:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:22,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:22,828 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 10:58:22,835 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:22,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 10:58:22,845 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 10:58:22,858 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:22,867 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:22,867 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:9, output treesize:21 [2018-11-18 10:58:22,967 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:22,968 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:22,969 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:22,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 34 [2018-11-18 10:58:22,977 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-11-18 10:58:23,008 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:23,008 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:23,009 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 24 [2018-11-18 10:58:23,010 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:23,030 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 10:58:23,030 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:59 [2018-11-18 10:58:23,080 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 10:58:23,080 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:58:23,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 10:58:23,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 12 [2018-11-18 10:58:23,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 10:58:23,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 10:58:23,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-11-18 10:58:23,107 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 12 states. [2018-11-18 10:58:23,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:23,542 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2018-11-18 10:58:23,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 10:58:23,542 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 25 [2018-11-18 10:58:23,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:23,544 INFO L225 Difference]: With dead ends: 59 [2018-11-18 10:58:23,544 INFO L226 Difference]: Without dead ends: 59 [2018-11-18 10:58:23,544 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-11-18 10:58:23,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-18 10:58:23,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2018-11-18 10:58:23,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-18 10:58:23,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2018-11-18 10:58:23,549 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 25 [2018-11-18 10:58:23,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:23,549 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2018-11-18 10:58:23,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 10:58:23,549 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2018-11-18 10:58:23,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 10:58:23,550 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:23,550 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:23,550 INFO L423 AbstractCegarLoop]: === Iteration 5 === [getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 10:58:23,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:23,551 INFO L82 PathProgramCache]: Analyzing trace with hash 962475898, now seen corresponding path program 2 times [2018-11-18 10:58:23,551 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:58:23,551 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:58:23,563 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 10:58:23,608 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 10:58:23,608 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 10:58:23,618 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:23,621 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:58:23,621 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:23,624 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:58:23,625 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 10:58:23,690 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:23,690 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:24,335 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:24,337 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:58:24,337 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:58:24,352 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 10:58:24,375 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 10:58:24,375 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 10:58:24,379 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:24,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:58:24,383 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:24,388 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:58:24,388 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 10:58:24,420 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:24,421 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:25,819 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:25,835 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 10:58:25,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7, 9] total 20 [2018-11-18 10:58:25,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-18 10:58:25,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-18 10:58:25,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2018-11-18 10:58:25,836 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 21 states. [2018-11-18 10:58:27,087 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 24 [2018-11-18 10:58:27,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:27,089 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2018-11-18 10:58:27,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 10:58:27,090 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 27 [2018-11-18 10:58:27,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:27,090 INFO L225 Difference]: With dead ends: 87 [2018-11-18 10:58:27,090 INFO L226 Difference]: Without dead ends: 87 [2018-11-18 10:58:27,091 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 78 SyntacticMatches, 9 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=233, Invalid=469, Unknown=0, NotChecked=0, Total=702 [2018-11-18 10:58:27,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-11-18 10:58:27,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 75. [2018-11-18 10:58:27,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-11-18 10:58:27,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2018-11-18 10:58:27,095 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 27 [2018-11-18 10:58:27,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:27,095 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2018-11-18 10:58:27,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-18 10:58:27,095 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2018-11-18 10:58:27,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 10:58:27,096 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:27,096 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:27,096 INFO L423 AbstractCegarLoop]: === Iteration 6 === [getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 10:58:27,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:27,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1110627449, now seen corresponding path program 1 times [2018-11-18 10:58:27,096 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:58:27,096 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:58:27,108 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:58:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:27,170 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:27,205 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:27,338 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:27,340 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:58:27,340 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:58:27,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:58:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:27,373 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:27,488 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:27,488 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:27,955 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:27,971 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 10:58:27,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10, 11] total 31 [2018-11-18 10:58:27,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-11-18 10:58:27,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-11-18 10:58:27,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=656, Unknown=0, NotChecked=0, Total=930 [2018-11-18 10:58:27,972 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 31 states. [2018-11-18 10:58:28,320 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 28 [2018-11-18 10:58:28,968 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 37 [2018-11-18 10:58:29,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:29,244 INFO L93 Difference]: Finished difference Result 93 states and 95 transitions. [2018-11-18 10:58:29,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 10:58:29,245 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 41 [2018-11-18 10:58:29,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:29,245 INFO L225 Difference]: With dead ends: 93 [2018-11-18 10:58:29,246 INFO L226 Difference]: Without dead ends: 93 [2018-11-18 10:58:29,246 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 131 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=417, Invalid=1143, Unknown=0, NotChecked=0, Total=1560 [2018-11-18 10:58:29,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-11-18 10:58:29,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2018-11-18 10:58:29,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-11-18 10:58:29,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2018-11-18 10:58:29,250 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 41 [2018-11-18 10:58:29,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:29,250 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2018-11-18 10:58:29,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-11-18 10:58:29,251 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2018-11-18 10:58:29,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-18 10:58:29,251 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:29,251 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:29,251 INFO L423 AbstractCegarLoop]: === Iteration 7 === [getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 10:58:29,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:29,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1040514044, now seen corresponding path program 3 times [2018-11-18 10:58:29,252 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:58:29,252 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:58:29,263 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-18 10:58:29,902 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-11-18 10:58:29,903 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 10:58:29,938 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:30,096 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 10 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:30,096 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:31,199 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 10 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:31,201 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:58:31,201 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:58:31,208 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 10:58:31,687 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-11-18 10:58:31,687 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 10:58:31,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:31,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:58:31,695 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:31,700 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:58:31,701 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 10:58:32,255 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 10 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:32,255 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:36,675 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:58:36,692 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 10:58:36,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 20, 14, 19] total 63 [2018-11-18 10:58:36,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2018-11-18 10:58:36,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2018-11-18 10:58:36,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=734, Invalid=3172, Unknown=0, NotChecked=0, Total=3906 [2018-11-18 10:58:36,695 INFO L87 Difference]: Start difference. First operand 90 states and 95 transitions. Second operand 63 states. [2018-11-18 10:58:38,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:38,121 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2018-11-18 10:58:38,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 10:58:38,122 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 51 [2018-11-18 10:58:38,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:38,123 INFO L225 Difference]: With dead ends: 73 [2018-11-18 10:58:38,123 INFO L226 Difference]: Without dead ends: 73 [2018-11-18 10:58:38,124 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 126 SyntacticMatches, 15 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1728 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=734, Invalid=3172, Unknown=0, NotChecked=0, Total=3906 [2018-11-18 10:58:38,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-18 10:58:38,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-11-18 10:58:38,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-18 10:58:38,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2018-11-18 10:58:38,127 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 51 [2018-11-18 10:58:38,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:38,128 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2018-11-18 10:58:38,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 63 states. [2018-11-18 10:58:38,128 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2018-11-18 10:58:38,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-18 10:58:38,129 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:38,129 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:38,129 INFO L423 AbstractCegarLoop]: === Iteration 8 === [getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 10:58:38,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:38,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1483282901, now seen corresponding path program 2 times [2018-11-18 10:58:38,130 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:58:38,130 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/cvc4nyu Starting monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:58:38,142 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 10:58:38,165 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 10:58:38,165 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 10:58:38,169 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:38,173 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 10:58:38,176 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:38,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 10:58:38,181 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 10:58:38,189 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:38,203 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:58:38,204 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:38,212 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:38,213 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:19, output treesize:37 [2018-11-18 10:58:38,284 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:38,287 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:38,289 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:38,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2018-11-18 10:58:38,291 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:38,339 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:38,339 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 36 [2018-11-18 10:58:38,340 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:38,391 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:38,392 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:38,393 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2018-11-18 10:58:38,393 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:38,437 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-18 10:58:38,437 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:38,465 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-18 10:58:38,465 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:69, output treesize:54 [2018-11-18 10:58:38,505 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 10:58:38,505 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:58:38,506 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:58:38,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 10:58:38,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:58:38,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:58:38,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:58:38,507 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand 6 states. [2018-11-18 10:58:38,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:38,719 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2018-11-18 10:58:38,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:58:38,719 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-11-18 10:58:38,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:38,720 INFO L225 Difference]: With dead ends: 81 [2018-11-18 10:58:38,720 INFO L226 Difference]: Without dead ends: 81 [2018-11-18 10:58:38,720 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:58:38,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-11-18 10:58:38,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2018-11-18 10:58:38,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-18 10:58:38,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2018-11-18 10:58:38,723 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 57 [2018-11-18 10:58:38,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:38,723 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2018-11-18 10:58:38,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:58:38,723 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2018-11-18 10:58:38,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 10:58:38,724 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:38,724 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:38,724 INFO L423 AbstractCegarLoop]: === Iteration 9 === [getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 10:58:38,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:38,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1262870370, now seen corresponding path program 1 times [2018-11-18 10:58:38,724 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:58:38,724 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/cvc4nyu Starting monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:58:38,735 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:58:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:38,818 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:38,828 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 10:58:38,828 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:38,831 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 10:58:38,831 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2018-11-18 10:58:38,840 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2018-11-18 10:58:38,841 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:58:38,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:58:38,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 10:58:38,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 10:58:38,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:58:38,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:58:38,843 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 5 states. [2018-11-18 10:58:38,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:38,904 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2018-11-18 10:58:38,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 10:58:38,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2018-11-18 10:58:38,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:38,905 INFO L225 Difference]: With dead ends: 75 [2018-11-18 10:58:38,905 INFO L226 Difference]: Without dead ends: 75 [2018-11-18 10:58:38,906 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:58:38,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-18 10:58:38,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-11-18 10:58:38,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-11-18 10:58:38,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 75 transitions. [2018-11-18 10:58:38,909 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 75 transitions. Word has length 58 [2018-11-18 10:58:38,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:38,910 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 75 transitions. [2018-11-18 10:58:38,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 10:58:38,910 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2018-11-18 10:58:38,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 10:58:38,911 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:38,911 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:38,911 INFO L423 AbstractCegarLoop]: === Iteration 10 === [getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 10:58:38,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:38,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1262870369, now seen corresponding path program 1 times [2018-11-18 10:58:38,912 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:58:38,912 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/cvc4nyu Starting monitored process 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:58:38,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:58:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:39,021 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:39,025 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:58:39,025 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:39,033 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:58:39,033 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-11-18 10:58:39,039 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 10:58:39,039 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:58:39,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:58:39,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:58:39,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:58:39,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:58:39,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:58:39,041 INFO L87 Difference]: Start difference. First operand 75 states and 75 transitions. Second operand 3 states. [2018-11-18 10:58:39,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:39,077 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2018-11-18 10:58:39,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:58:39,078 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2018-11-18 10:58:39,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:39,078 INFO L225 Difference]: With dead ends: 78 [2018-11-18 10:58:39,078 INFO L226 Difference]: Without dead ends: 78 [2018-11-18 10:58:39,079 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:58:39,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-11-18 10:58:39,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2018-11-18 10:58:39,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-18 10:58:39,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2018-11-18 10:58:39,081 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 58 [2018-11-18 10:58:39,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:39,081 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2018-11-18 10:58:39,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:58:39,081 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2018-11-18 10:58:39,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-18 10:58:39,082 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:39,082 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:39,082 INFO L423 AbstractCegarLoop]: === Iteration 11 === [getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 10:58:39,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:39,082 INFO L82 PathProgramCache]: Analyzing trace with hash -677896277, now seen corresponding path program 1 times [2018-11-18 10:58:39,083 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:58:39,083 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/cvc4nyu Starting monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:58:39,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:58:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:39,221 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:39,224 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 10:58:39,227 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:39,231 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 10:58:39,232 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 10:58:39,243 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:39,258 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:58:39,258 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:39,267 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:39,267 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:19, output treesize:37 [2018-11-18 10:58:39,341 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:39,342 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:39,343 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:39,344 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2018-11-18 10:58:39,344 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:39,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-18 10:58:39,385 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:39,431 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:39,431 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 36 [2018-11-18 10:58:39,432 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:39,464 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:39,464 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:39,465 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2018-11-18 10:58:39,465 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:39,487 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-18 10:58:39,488 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:69, output treesize:54 [2018-11-18 10:58:39,558 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 10:58:39,558 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:40,042 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:58:40,042 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:58:40,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:58:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:40,089 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:40,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:58:40,091 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:40,097 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 10:58:40,100 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:40,108 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 10:58:40,108 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-18 10:58:40,114 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:40,122 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:40,122 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:19, output treesize:37 [2018-11-18 10:58:40,138 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:40,138 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 36 [2018-11-18 10:58:40,139 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:40,185 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:40,186 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:40,186 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2018-11-18 10:58:40,187 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:40,220 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:40,223 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:40,225 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:40,225 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2018-11-18 10:58:40,226 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:40,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-18 10:58:40,264 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:40,285 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-18 10:58:40,285 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:69, output treesize:54 [2018-11-18 10:58:40,336 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 10:58:40,336 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:40,656 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2018-11-18 10:58:40,849 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 10:58:40,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-11-18 10:58:40,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:58:40,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:58:40,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-11-18 10:58:40,849 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 7 states. [2018-11-18 10:58:41,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:41,163 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2018-11-18 10:58:41,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:58:41,163 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2018-11-18 10:58:41,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:41,164 INFO L225 Difference]: With dead ends: 85 [2018-11-18 10:58:41,164 INFO L226 Difference]: Without dead ends: 85 [2018-11-18 10:58:41,164 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 126 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2018-11-18 10:58:41,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-11-18 10:58:41,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 81. [2018-11-18 10:58:41,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-11-18 10:58:41,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2018-11-18 10:58:41,167 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 63 [2018-11-18 10:58:41,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:41,167 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 81 transitions. [2018-11-18 10:58:41,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:58:41,167 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2018-11-18 10:58:41,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-18 10:58:41,168 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:41,168 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:41,169 INFO L423 AbstractCegarLoop]: === Iteration 12 === [getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 10:58:41,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:41,169 INFO L82 PathProgramCache]: Analyzing trace with hash 460051849, now seen corresponding path program 1 times [2018-11-18 10:58:41,169 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:58:41,169 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/cvc4nyu Starting monitored process 19 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:58:41,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:58:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:41,289 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:41,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:58:41,294 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:41,310 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:58:41,310 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-11-18 10:58:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 10:58:41,329 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:41,540 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 10:58:41,542 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:58:41,542 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:58:41,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:58:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:58:41,595 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:41,652 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:58:41,653 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:41,658 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:58:41,658 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-18 10:58:41,686 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 10:58:41,686 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 10:58:41,944 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 10:58:41,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 7, 4] total 13 [2018-11-18 10:58:41,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 10:58:41,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 10:58:41,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-11-18 10:58:41,945 INFO L87 Difference]: Start difference. First operand 81 states and 81 transitions. Second operand 14 states. [2018-11-18 10:58:42,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:42,652 INFO L93 Difference]: Finished difference Result 98 states and 100 transitions. [2018-11-18 10:58:42,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 10:58:42,653 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 64 [2018-11-18 10:58:42,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:42,654 INFO L225 Difference]: With dead ends: 98 [2018-11-18 10:58:42,654 INFO L226 Difference]: Without dead ends: 98 [2018-11-18 10:58:42,654 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 240 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2018-11-18 10:58:42,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-11-18 10:58:42,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2018-11-18 10:58:42,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-11-18 10:58:42,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 98 transitions. [2018-11-18 10:58:42,657 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 98 transitions. Word has length 64 [2018-11-18 10:58:42,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:42,657 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 98 transitions. [2018-11-18 10:58:42,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 10:58:42,657 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 98 transitions. [2018-11-18 10:58:42,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-18 10:58:42,658 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:42,658 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:42,658 INFO L423 AbstractCegarLoop]: === Iteration 13 === [getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 10:58:42,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:42,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1356534527, now seen corresponding path program 2 times [2018-11-18 10:58:42,659 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:58:42,659 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/cvc4nyu Starting monitored process 21 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:58:42,671 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 10:58:42,804 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 10:58:42,804 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 10:58:42,830 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:42,832 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 10:58:42,835 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:42,843 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 10:58:42,844 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 10:58:42,853 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:42,867 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:58:42,867 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:42,876 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:42,876 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:19, output treesize:37 [2018-11-18 10:58:42,942 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:42,943 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:42,944 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:42,944 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2018-11-18 10:58:42,944 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:42,976 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-18 10:58:42,976 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:43,009 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:43,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 36 [2018-11-18 10:58:43,010 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:43,033 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:43,034 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:43,035 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2018-11-18 10:58:43,035 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:43,055 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-18 10:58:43,055 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:69, output treesize:54 [2018-11-18 10:58:43,147 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 10:58:43,147 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:43,823 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:58:43,823 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:58:43,829 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 10:58:43,872 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 10:58:43,873 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 10:58:43,878 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:43,882 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 10:58:43,885 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:43,890 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 10:58:43,890 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 10:58:43,899 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:43,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:58:43,916 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:43,924 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:43,925 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:19, output treesize:37 [2018-11-18 10:58:43,948 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:43,949 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:43,951 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:43,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2018-11-18 10:58:43,952 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:43,989 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:43,990 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:43,991 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2018-11-18 10:58:43,991 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:44,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2018-11-18 10:58:44,022 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:44,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-18 10:58:44,061 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:44,085 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-18 10:58:44,086 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:69, output treesize:54 [2018-11-18 10:58:44,133 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 10:58:44,133 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:44,818 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 10:58:44,818 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-11-18 10:58:44,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 10:58:44,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 10:58:44,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2018-11-18 10:58:44,819 INFO L87 Difference]: Start difference. First operand 94 states and 98 transitions. Second operand 8 states. [2018-11-18 10:58:45,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:45,264 INFO L93 Difference]: Finished difference Result 94 states and 96 transitions. [2018-11-18 10:58:45,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:58:45,265 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2018-11-18 10:58:45,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:45,265 INFO L225 Difference]: With dead ends: 94 [2018-11-18 10:58:45,265 INFO L226 Difference]: Without dead ends: 94 [2018-11-18 10:58:45,266 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 147 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2018-11-18 10:58:45,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-11-18 10:58:45,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2018-11-18 10:58:45,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-11-18 10:58:45,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 96 transitions. [2018-11-18 10:58:45,267 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 96 transitions. Word has length 69 [2018-11-18 10:58:45,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:45,268 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 96 transitions. [2018-11-18 10:58:45,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 10:58:45,268 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 96 transitions. [2018-11-18 10:58:45,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-11-18 10:58:45,269 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:45,269 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:45,269 INFO L423 AbstractCegarLoop]: === Iteration 14 === [getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 10:58:45,269 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:45,269 INFO L82 PathProgramCache]: Analyzing trace with hash -797187625, now seen corresponding path program 3 times [2018-11-18 10:58:45,269 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:58:45,269 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/cvc4nyu Starting monitored process 23 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:58:45,284 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-18 10:58:45,470 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-18 10:58:45,470 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 10:58:45,490 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:45,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 10:58:45,496 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:45,501 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 10:58:45,501 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 10:58:45,511 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:45,526 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:58:45,526 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:45,536 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:45,536 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:19, output treesize:37 [2018-11-18 10:58:45,637 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:45,638 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:45,640 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:45,640 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2018-11-18 10:58:45,641 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:45,682 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:45,683 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 36 [2018-11-18 10:58:45,683 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:45,714 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-18 10:58:45,714 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:45,737 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:45,738 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:45,738 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2018-11-18 10:58:45,739 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:45,759 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-18 10:58:45,759 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:69, output treesize:54 [2018-11-18 10:58:45,898 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 10:58:45,899 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:46,309 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 22 [2018-11-18 10:58:46,806 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2018-11-18 10:58:46,982 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:58:46,983 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:58:46,988 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 10:58:47,031 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-18 10:58:47,032 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 10:58:47,036 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:58:47,038 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:58:47,038 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:47,044 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 10:58:47,047 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:47,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 10:58:47,053 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-18 10:58:47,058 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:47,067 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 10:58:47,067 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:19, output treesize:37 [2018-11-18 10:58:47,081 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:47,081 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 39 [2018-11-18 10:58:47,082 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:47,109 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:47,109 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:47,110 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-18 10:58:47,110 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:47,139 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:47,140 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:47,140 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 10:58:47,141 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 31 [2018-11-18 10:58:47,141 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:47,168 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2018-11-18 10:58:47,168 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 10:58:47,193 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:58:47,193 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:75, output treesize:26 [2018-11-18 10:58:47,388 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 10:58:47,388 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:58:49,158 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2018-11-18 10:58:49,525 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 10:58:49,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2018-11-18 10:58:49,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 10:58:49,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 10:58:49,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=516, Unknown=0, NotChecked=0, Total=650 [2018-11-18 10:58:49,526 INFO L87 Difference]: Start difference. First operand 94 states and 96 transitions. Second operand 12 states. [2018-11-18 10:58:50,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:58:50,123 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2018-11-18 10:58:50,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 10:58:50,123 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 75 [2018-11-18 10:58:50,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:58:50,124 INFO L225 Difference]: With dead ends: 96 [2018-11-18 10:58:50,124 INFO L226 Difference]: Without dead ends: 96 [2018-11-18 10:58:50,124 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 162 SyntacticMatches, 8 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=209, Invalid=721, Unknown=0, NotChecked=0, Total=930 [2018-11-18 10:58:50,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-11-18 10:58:50,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2018-11-18 10:58:50,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-11-18 10:58:50,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2018-11-18 10:58:50,125 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 75 [2018-11-18 10:58:50,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:58:50,126 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2018-11-18 10:58:50,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 10:58:50,126 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2018-11-18 10:58:50,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-18 10:58:50,127 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:58:50,127 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:58:50,127 INFO L423 AbstractCegarLoop]: === Iteration 15 === [getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 10:58:50,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:58:50,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1035903443, now seen corresponding path program 4 times [2018-11-18 10:58:50,128 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 10:58:50,128 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e354ea6a-5d53-4713-8d91-0e39eadc3773/bin-2019/utaipan/cvc4nyu Starting monitored process 25 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:58:50,145 INFO L101 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-18 10:58:50,351 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 10:58:50,352 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:358) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.partitionStmtsAccordingToConstantSize(AnnotateAndAsserterWithStmtOrderPrioritization.java:377) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.annotateAndAssertStmtsAccording5Heuristic(AnnotateAndAsserterWithStmtOrderPrioritization.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserterWithStmtOrderPrioritization.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:134) 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:429) 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:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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) [2018-11-18 10:58:50,354 INFO L168 Benchmark]: Toolchain (without parser) took 29921.51 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 334.5 MB). Free memory was 948.7 MB in the beginning and 944.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 338.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:58:50,355 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:58:50,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.35 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:58:50,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.42 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:58:50,356 INFO L168 Benchmark]: Boogie Preprocessor took 25.77 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:58:50,356 INFO L168 Benchmark]: RCFGBuilder took 317.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:58:50,356 INFO L168 Benchmark]: TraceAbstraction took 29363.16 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 200.3 MB). Free memory was 1.1 GB in the beginning and 944.9 MB in the end (delta: 159.4 MB). Peak memory consumption was 359.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:58:50,357 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.35 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.42 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.77 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 317.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 29363.16 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 200.3 MB). Free memory was 1.1 GB in the beginning and 944.9 MB in the end (delta: 159.4 MB). Peak memory consumption was 359.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible!: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:358) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...