./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.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_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 60fa12f4a8e344f82de5faf31b8f2cbfbaaacd93 ............................................................................................................................................................................................................................................................................................................................................................................. 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_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 60fa12f4a8e344f82de5faf31b8f2cbfbaaacd93 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:18:10,061 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:18:10,062 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:18:10,070 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:18:10,071 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:18:10,071 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:18:10,072 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:18:10,073 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:18:10,074 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:18:10,074 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:18:10,075 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:18:10,075 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:18:10,075 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:18:10,076 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:18:10,077 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:18:10,077 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:18:10,077 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:18:10,079 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:18:10,080 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:18:10,080 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:18:10,081 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:18:10,082 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:18:10,084 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:18:10,084 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:18:10,084 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:18:10,085 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:18:10,085 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:18:10,086 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:18:10,086 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:18:10,087 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:18:10,087 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:18:10,087 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:18:10,088 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:18:10,088 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:18:10,088 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:18:10,089 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:18:10,089 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-11-18 15:18:10,097 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:18:10,097 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:18:10,098 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:18:10,098 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:18:10,098 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:18:10,098 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:18:10,099 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:18:10,099 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:18:10,099 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:18:10,099 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:18:10,099 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:18:10,099 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:18:10,099 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:18:10,100 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:18:10,100 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:18:10,100 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:18:10,100 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:18:10,100 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 15:18:10,100 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:18:10,101 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:18:10,101 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:18:10,101 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 15:18:10,101 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 15:18:10,101 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 15:18:10,101 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:18:10,101 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:18:10,102 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:18:10,102 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:18:10,102 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:18:10,102 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:18:10,102 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:18:10,102 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:18:10,102 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:18:10,103 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:18:10,103 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:18:10,103 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:18:10,103 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:18:10,103 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_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 -> 60fa12f4a8e344f82de5faf31b8f2cbfbaaacd93 [2018-11-18 15:18:10,124 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:18:10,134 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:18:10,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:18:10,138 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:18:10,138 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:18:10,139 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-11-18 15:18:10,184 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/data/871468d47/7c2daa847f374efaa26532628d777707/FLAG8f924f3dc [2018-11-18 15:18:10,522 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:18:10,522 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-11-18 15:18:10,527 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/data/871468d47/7c2daa847f374efaa26532628d777707/FLAG8f924f3dc [2018-11-18 15:18:10,943 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/data/871468d47/7c2daa847f374efaa26532628d777707 [2018-11-18 15:18:10,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:18:10,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:18:10,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:18:10,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:18:10,951 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:18:10,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:18:10" (1/1) ... [2018-11-18 15:18:10,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e0c3510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:10, skipping insertion in model container [2018-11-18 15:18:10,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:18:10" (1/1) ... [2018-11-18 15:18:10,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:18:10,976 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:18:11,083 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:18:11,091 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:18:11,100 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:18:11,110 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:18:11,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:11 WrapperNode [2018-11-18 15:18:11,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:18:11,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:18:11,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:18:11,111 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:18:11,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:11" (1/1) ... [2018-11-18 15:18:11,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:11" (1/1) ... [2018-11-18 15:18:11,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:18:11,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:18:11,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:18:11,127 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:18:11,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:11" (1/1) ... [2018-11-18 15:18:11,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:11" (1/1) ... [2018-11-18 15:18:11,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:11" (1/1) ... [2018-11-18 15:18:11,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:11" (1/1) ... [2018-11-18 15:18:11,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:11" (1/1) ... [2018-11-18 15:18:11,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:11" (1/1) ... [2018-11-18 15:18:11,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:11" (1/1) ... [2018-11-18 15:18:11,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:18:11,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:18:11,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:18:11,147 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:18:11,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 15:18:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 15:18:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:18:11,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:18:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:18:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:18:11,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:18:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 15:18:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:18:11,220 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:18:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-18 15:18:11,220 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-18 15:18:11,353 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:18:11,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:18:11 BoogieIcfgContainer [2018-11-18 15:18:11,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:18:11,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:18:11,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:18:11,357 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:18:11,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:18:10" (1/3) ... [2018-11-18 15:18:11,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78fcd879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:18:11, skipping insertion in model container [2018-11-18 15:18:11,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:11" (2/3) ... [2018-11-18 15:18:11,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78fcd879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:18:11, skipping insertion in model container [2018-11-18 15:18:11,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:18:11" (3/3) ... [2018-11-18 15:18:11,360 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers1_true-valid-memsafety.c [2018-11-18 15:18:11,368 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:18:11,374 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-18 15:18:11,386 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-18 15:18:11,407 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:18:11,407 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 15:18:11,407 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:18:11,407 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:18:11,408 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:18:11,408 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:18:11,408 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:18:11,408 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:18:11,419 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-18 15:18:11,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 15:18:11,427 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:11,427 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:11,429 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 15:18:11,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:11,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1121499465, now seen corresponding path program 1 times [2018-11-18 15:18:11,435 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:18:11,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:18:11,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:11,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:18:11,467 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:18:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:11,547 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 15:18:11,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:18:11,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:18:11,550 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:18:11,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:18:11,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:18:11,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:18:11,566 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2018-11-18 15:18:11,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:11,600 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2018-11-18 15:18:11,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:18:11,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 15:18:11,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:11,608 INFO L225 Difference]: With dead ends: 28 [2018-11-18 15:18:11,608 INFO L226 Difference]: Without dead ends: 23 [2018-11-18 15:18:11,611 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:18:11,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-18 15:18:11,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-18 15:18:11,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-18 15:18:11,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-11-18 15:18:11,633 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 10 [2018-11-18 15:18:11,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:11,633 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-11-18 15:18:11,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:18:11,633 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-11-18 15:18:11,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 15:18:11,634 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:11,634 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:11,634 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 15:18:11,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:11,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1121499466, now seen corresponding path program 1 times [2018-11-18 15:18:11,635 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:18:11,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:18:11,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:11,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:18:11,636 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:18:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:11,699 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 15:18:11,699 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:18:11,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:18:11,700 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:18:11,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 15:18:11,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 15:18:11,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 15:18:11,702 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 4 states. [2018-11-18 15:18:11,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:11,753 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2018-11-18 15:18:11,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 15:18:11,753 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-18 15:18:11,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:11,754 INFO L225 Difference]: With dead ends: 27 [2018-11-18 15:18:11,754 INFO L226 Difference]: Without dead ends: 27 [2018-11-18 15:18:11,755 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 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 15:18:11,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-18 15:18:11,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-11-18 15:18:11,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-18 15:18:11,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-11-18 15:18:11,758 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 10 [2018-11-18 15:18:11,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:11,758 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-11-18 15:18:11,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 15:18:11,758 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-11-18 15:18:11,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 15:18:11,759 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:11,759 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:11,759 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 15:18:11,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:11,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1239312801, now seen corresponding path program 1 times [2018-11-18 15:18:11,760 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:18:11,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:18:11,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:11,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:18:11,761 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:18:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:11,855 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 15:18:11,856 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:18:11,856 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:18:11,857 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-11-18 15:18:11,858 INFO L202 CegarAbsIntRunner]: [0], [1], [28], [32], [37], [38], [40], [42], [48], [49], [50], [52] [2018-11-18 15:18:11,878 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:18:11,878 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:18:11,938 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 15:18:11,941 INFO L168 Benchmark]: Toolchain (without parser) took 994.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 961.9 MB in the beginning and 1.1 GB in the end (delta: -93.1 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:11,942 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:18:11,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.76 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:11,943 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.86 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:11,943 INFO L168 Benchmark]: Boogie Preprocessor took 19.53 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 15:18:11,944 INFO L168 Benchmark]: RCFGBuilder took 207.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:11,944 INFO L168 Benchmark]: TraceAbstraction took 585.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:11,947 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 162.76 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 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 15.86 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.53 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 207.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 585.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 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 15:18:13,402 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:18:13,403 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:18:13,412 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:18:13,412 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:18:13,413 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:18:13,414 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:18:13,415 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:18:13,416 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:18:13,417 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:18:13,418 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:18:13,418 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:18:13,418 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:18:13,419 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:18:13,420 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:18:13,420 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:18:13,421 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:18:13,422 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:18:13,424 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:18:13,425 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:18:13,426 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:18:13,427 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:18:13,428 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:18:13,428 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:18:13,429 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:18:13,429 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:18:13,431 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:18:13,431 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:18:13,432 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:18:13,433 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:18:13,433 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:18:13,433 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:18:13,434 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:18:13,434 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:18:13,434 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:18:13,435 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:18:13,435 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2018-11-18 15:18:13,446 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:18:13,447 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:18:13,447 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:18:13,447 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:18:13,448 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:18:13,448 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:18:13,448 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:18:13,449 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:18:13,449 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:18:13,449 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:18:13,449 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:18:13,450 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:18:13,450 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:18:13,450 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:18:13,450 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 15:18:13,450 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:18:13,450 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:18:13,450 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:18:13,451 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 15:18:13,451 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 15:18:13,451 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 15:18:13,451 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:18:13,451 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 15:18:13,451 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 15:18:13,451 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:18:13,452 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:18:13,452 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:18:13,452 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:18:13,452 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:18:13,452 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:18:13,452 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:18:13,452 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:18:13,453 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:18:13,453 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 15:18:13,453 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:18:13,453 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 15:18:13,453 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_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 -> 60fa12f4a8e344f82de5faf31b8f2cbfbaaacd93 [2018-11-18 15:18:13,484 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:18:13,493 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:18:13,496 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:18:13,497 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:18:13,497 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:18:13,497 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-11-18 15:18:13,539 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/data/e50609fdd/4c5850701ad34c1ba2a500b1302a0626/FLAG69d89c98b [2018-11-18 15:18:13,936 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:18:13,937 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-11-18 15:18:13,940 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/data/e50609fdd/4c5850701ad34c1ba2a500b1302a0626/FLAG69d89c98b [2018-11-18 15:18:13,949 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/data/e50609fdd/4c5850701ad34c1ba2a500b1302a0626 [2018-11-18 15:18:13,952 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:18:13,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:18:13,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:18:13,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:18:13,957 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:18:13,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:18:13" (1/1) ... [2018-11-18 15:18:13,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@687d7983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:13, skipping insertion in model container [2018-11-18 15:18:13,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:18:13" (1/1) ... [2018-11-18 15:18:13,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:18:13,978 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:18:14,107 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:18:14,117 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:18:14,127 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:18:14,139 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:18:14,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:14 WrapperNode [2018-11-18 15:18:14,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:18:14,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:18:14,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:18:14,140 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:18:14,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:14" (1/1) ... [2018-11-18 15:18:14,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:14" (1/1) ... [2018-11-18 15:18:14,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:18:14,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:18:14,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:18:14,160 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:18:14,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:14" (1/1) ... [2018-11-18 15:18:14,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:14" (1/1) ... [2018-11-18 15:18:14,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:14" (1/1) ... [2018-11-18 15:18:14,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:14" (1/1) ... [2018-11-18 15:18:14,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:14" (1/1) ... [2018-11-18 15:18:14,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:14" (1/1) ... [2018-11-18 15:18:14,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:14" (1/1) ... [2018-11-18 15:18:14,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:18:14,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:18:14,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:18:14,182 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:18:14,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 15:18:14,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:18:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:18:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:18:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 15:18:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:18:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:18:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:18:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:18:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-18 15:18:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-18 15:18:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 15:18:14,440 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:18:14,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:18:14 BoogieIcfgContainer [2018-11-18 15:18:14,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:18:14,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:18:14,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:18:14,443 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:18:14,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:18:13" (1/3) ... [2018-11-18 15:18:14,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4125c265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:18:14, skipping insertion in model container [2018-11-18 15:18:14,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:14" (2/3) ... [2018-11-18 15:18:14,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4125c265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:18:14, skipping insertion in model container [2018-11-18 15:18:14,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:18:14" (3/3) ... [2018-11-18 15:18:14,445 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers1_true-valid-memsafety.c [2018-11-18 15:18:14,451 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:18:14,456 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-18 15:18:14,465 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-18 15:18:14,481 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:18:14,481 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:18:14,481 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 15:18:14,481 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:18:14,481 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:18:14,482 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:18:14,482 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:18:14,482 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:18:14,482 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:18:14,492 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-18 15:18:14,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 15:18:14,497 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:14,498 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:14,499 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 15:18:14,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:14,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1121499465, now seen corresponding path program 1 times [2018-11-18 15:18:14,505 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:18:14,506 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 15:18:14,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:14,563 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:14,592 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 12 treesize of output 15 [2018-11-18 15:18:14,600 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:14,615 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 15 treesize of output 21 [2018-11-18 15:18:14,623 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:14,629 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:14,644 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 2 case distinctions, treesize of input 17 treesize of output 24 [2018-11-18 15:18:14,646 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-18 15:18:14,688 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 15 treesize of output 14 [2018-11-18 15:18:14,689 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 15:18:14,708 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 15:18:14,727 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 15:18:14,747 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 15:18:14,747 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:12, output treesize:44 [2018-11-18 15:18:14,767 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 15:18:14,768 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:18:14,774 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:18:14,774 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:18:14,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:18:14,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:18:14,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:18:14,791 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2018-11-18 15:18:14,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:14,830 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2018-11-18 15:18:14,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:18:14,831 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 15:18:14,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:14,840 INFO L225 Difference]: With dead ends: 28 [2018-11-18 15:18:14,840 INFO L226 Difference]: Without dead ends: 23 [2018-11-18 15:18:14,842 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 15:18:14,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-18 15:18:14,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-18 15:18:14,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-18 15:18:14,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-11-18 15:18:14,869 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 10 [2018-11-18 15:18:14,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:14,869 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-11-18 15:18:14,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:18:14,869 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-11-18 15:18:14,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 15:18:14,869 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:14,869 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:14,870 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 15:18:14,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:14,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1121499466, now seen corresponding path program 1 times [2018-11-18 15:18:14,870 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:18:14,870 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 15:18:14,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:14,918 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:14,925 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 15:18:14,937 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:14,953 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 15:18:14,954 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 15:18:14,982 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 15:18:15,019 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 2 xjuncts. [2018-11-18 15:18:15,020 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:24 [2018-11-18 15:18:15,081 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 15:18:15,082 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:18:15,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:18:15,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:18:15,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 15:18:15,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 15:18:15,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 15:18:15,087 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 4 states. [2018-11-18 15:18:15,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:15,170 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2018-11-18 15:18:15,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 15:18:15,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-18 15:18:15,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:15,172 INFO L225 Difference]: With dead ends: 27 [2018-11-18 15:18:15,173 INFO L226 Difference]: Without dead ends: 27 [2018-11-18 15:18:15,173 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 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 15:18:15,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-18 15:18:15,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-11-18 15:18:15,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-18 15:18:15,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-11-18 15:18:15,177 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 10 [2018-11-18 15:18:15,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:15,177 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-11-18 15:18:15,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 15:18:15,177 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-11-18 15:18:15,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 15:18:15,178 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:15,178 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:15,178 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 15:18:15,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:15,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1239312801, now seen corresponding path program 1 times [2018-11-18 15:18:15,179 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:18:15,179 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 15:18:15,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:15,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:15,245 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 15:18:15,250 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:15,291 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 15:18:15,292 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 15:18:15,308 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 15:18:15,324 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 2 xjuncts. [2018-11-18 15:18:15,324 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:24 [2018-11-18 15:18:15,370 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 15:18:15,370 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:15,699 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 15:18:15,701 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:18:15,701 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 15:18:15,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:15,741 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:15,745 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 15:18:15,750 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:15,756 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 15:18:15,757 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 15:18:15,766 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 15:18:15,777 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 2 xjuncts. [2018-11-18 15:18:15,777 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:24 [2018-11-18 15:18:15,780 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 15:18:15,780 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:15,851 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 15:18:15,866 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 15:18:15,866 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4, 4] total 9 [2018-11-18 15:18:15,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 15:18:15,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 15:18:15,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:18:15,867 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2018-11-18 15:18:16,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:16,130 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-11-18 15:18:16,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:18:16,130 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2018-11-18 15:18:16,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:16,132 INFO L225 Difference]: With dead ends: 44 [2018-11-18 15:18:16,132 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 15:18:16,133 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2018-11-18 15:18:16,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 15:18:16,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2018-11-18 15:18:16,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 15:18:16,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2018-11-18 15:18:16,136 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 14 [2018-11-18 15:18:16,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:16,137 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2018-11-18 15:18:16,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 15:18:16,137 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-11-18 15:18:16,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 15:18:16,137 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:16,138 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:16,138 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 15:18:16,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:16,138 INFO L82 PathProgramCache]: Analyzing trace with hash -123868468, now seen corresponding path program 1 times [2018-11-18 15:18:16,138 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:18:16,138 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 15:18:16,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:16,181 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:16,195 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 15:18:16,196 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:16,246 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 15:18:16,246 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:18:16,247 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 15:18:16,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:16,267 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:16,270 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 12 treesize of output 15 [2018-11-18 15:18:16,274 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:16,284 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 15 treesize of output 21 [2018-11-18 15:18:16,289 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 15 treesize of output 14 [2018-11-18 15:18:16,289 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 15:18:16,308 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:16,311 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:16,319 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 2 case distinctions, treesize of input 17 treesize of output 24 [2018-11-18 15:18:16,320 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-18 15:18:16,337 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 15:18:16,353 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 15:18:16,366 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 15:18:16,367 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:12, output treesize:44 [2018-11-18 15:18:16,419 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 15:18:16,419 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:18:16,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 15:18:16,434 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 12 [2018-11-18 15:18:16,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 15:18:16,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 15:18:16,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-11-18 15:18:16,435 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 12 states. [2018-11-18 15:18:16,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:16,705 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2018-11-18 15:18:16,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 15:18:16,705 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 24 [2018-11-18 15:18:16,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:16,706 INFO L225 Difference]: With dead ends: 45 [2018-11-18 15:18:16,706 INFO L226 Difference]: Without dead ends: 45 [2018-11-18 15:18:16,706 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-11-18 15:18:16,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-18 15:18:16,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2018-11-18 15:18:16,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-18 15:18:16,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2018-11-18 15:18:16,709 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 24 [2018-11-18 15:18:16,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:16,710 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2018-11-18 15:18:16,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 15:18:16,710 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2018-11-18 15:18:16,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 15:18:16,710 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:16,710 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:16,711 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 15:18:16,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:16,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1735550374, now seen corresponding path program 2 times [2018-11-18 15:18:16,711 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:18:16,711 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 15:18:16,723 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 15:18:16,773 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 15:18:16,773 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:18:16,783 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:16,786 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 15:18:16,796 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:16,802 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 15:18:16,802 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 15:18:16,810 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 15:18:16,820 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 2 xjuncts. [2018-11-18 15:18:16,821 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:24 [2018-11-18 15:18:16,894 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 15:18:16,894 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:17,563 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 15:18:17,564 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:18:17,564 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 15:18:17,570 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 15:18:17,595 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 15:18:17,595 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:18:17,598 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:17,602 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 15:18:17,605 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:17,612 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 15:18:17,613 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 15:18:17,629 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 15:18:17,640 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 2 xjuncts. [2018-11-18 15:18:17,641 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:24 [2018-11-18 15:18:17,670 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 15:18:17,670 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:19,029 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 15:18:19,045 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 15:18:19,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7, 9] total 20 [2018-11-18 15:18:19,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-18 15:18:19,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-18 15:18:19,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2018-11-18 15:18:19,046 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand 21 states. [2018-11-18 15:18:20,126 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 24 [2018-11-18 15:18:20,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:20,129 INFO L93 Difference]: Finished difference Result 73 states and 78 transitions. [2018-11-18 15:18:20,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 15:18:20,129 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 26 [2018-11-18 15:18:20,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:20,130 INFO L225 Difference]: With dead ends: 73 [2018-11-18 15:18:20,130 INFO L226 Difference]: Without dead ends: 73 [2018-11-18 15:18:20,130 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 78 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=233, Invalid=469, Unknown=0, NotChecked=0, Total=702 [2018-11-18 15:18:20,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-18 15:18:20,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 61. [2018-11-18 15:18:20,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-11-18 15:18:20,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2018-11-18 15:18:20,134 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 26 [2018-11-18 15:18:20,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:20,134 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2018-11-18 15:18:20,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-18 15:18:20,134 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2018-11-18 15:18:20,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-18 15:18:20,135 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:20,135 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:20,135 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 15:18:20,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:20,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1404356137, now seen corresponding path program 1 times [2018-11-18 15:18:20,135 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:18:20,136 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 15:18:20,147 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:18:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:20,209 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:20,262 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 15:18:20,262 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:20,391 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 15:18:20,392 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:18:20,392 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 15:18:20,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:20,431 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:20,435 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 15:18:20,438 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:20,444 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 15:18:20,445 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 15:18:20,453 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 15:18:20,464 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 2 xjuncts. [2018-11-18 15:18:20,464 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:24 [2018-11-18 15:18:20,567 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-18 15:18:20,567 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:18:20,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 15:18:20,587 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 9] total 20 [2018-11-18 15:18:20,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-18 15:18:20,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-18 15:18:20,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2018-11-18 15:18:20,588 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 20 states. [2018-11-18 15:18:21,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:21,188 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2018-11-18 15:18:21,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-18 15:18:21,189 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 40 [2018-11-18 15:18:21,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:21,190 INFO L225 Difference]: With dead ends: 66 [2018-11-18 15:18:21,190 INFO L226 Difference]: Without dead ends: 66 [2018-11-18 15:18:21,191 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=216, Invalid=840, Unknown=0, NotChecked=0, Total=1056 [2018-11-18 15:18:21,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-18 15:18:21,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-11-18 15:18:21,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-18 15:18:21,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2018-11-18 15:18:21,195 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 40 [2018-11-18 15:18:21,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:21,195 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2018-11-18 15:18:21,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-18 15:18:21,195 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2018-11-18 15:18:21,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-18 15:18:21,196 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:21,196 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:21,196 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 15:18:21,196 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:21,196 INFO L82 PathProgramCache]: Analyzing trace with hash -657653968, now seen corresponding path program 3 times [2018-11-18 15:18:21,197 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:18:21,197 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 15:18:21,210 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-18 15:18:21,994 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-11-18 15:18:21,994 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:18:22,022 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:22,171 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 15:18:22,171 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:23,249 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 15:18:23,251 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:18:23,251 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 15:18:23,257 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 15:18:24,449 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-11-18 15:18:24,449 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:18:24,455 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:24,458 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 15:18:24,461 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:24,469 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 15:18:24,469 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 15:18:24,477 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 15:18:24,487 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 2 xjuncts. [2018-11-18 15:18:24,487 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:24 [2018-11-18 15:18:24,950 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 15:18:24,951 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:25,595 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2018-11-18 15:18:26,172 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2018-11-18 15:18:26,838 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2018-11-18 15:18:27,842 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2018-11-18 15:18:28,865 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2018-11-18 15:18:30,071 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2018-11-18 15:18:30,560 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 15:18:30,588 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 15:18:30,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 20, 14, 19] total 63 [2018-11-18 15:18:30,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2018-11-18 15:18:30,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2018-11-18 15:18:30,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=734, Invalid=3172, Unknown=0, NotChecked=0, Total=3906 [2018-11-18 15:18:30,590 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand 63 states. [2018-11-18 15:18:31,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:31,668 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2018-11-18 15:18:31,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 15:18:31,670 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 50 [2018-11-18 15:18:31,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:31,671 INFO L225 Difference]: With dead ends: 62 [2018-11-18 15:18:31,671 INFO L226 Difference]: Without dead ends: 62 [2018-11-18 15:18:31,672 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 124 SyntacticMatches, 13 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1690 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=734, Invalid=3172, Unknown=0, NotChecked=0, Total=3906 [2018-11-18 15:18:31,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-11-18 15:18:31,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-11-18 15:18:31,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-11-18 15:18:31,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2018-11-18 15:18:31,675 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 50 [2018-11-18 15:18:31,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:31,676 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2018-11-18 15:18:31,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has 63 states. [2018-11-18 15:18:31,676 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2018-11-18 15:18:31,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-18 15:18:31,677 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:31,677 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] [2018-11-18 15:18:31,677 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 15:18:31,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:31,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1297646120, now seen corresponding path program 1 times [2018-11-18 15:18:31,678 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:18:31,678 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 15:18:31,699 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:18:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:31,864 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:31,873 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 15:18:31,904 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:31,913 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 15:18:31,914 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 15:18:31,927 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 15:18:31,945 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 2 xjuncts. [2018-11-18 15:18:31,945 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:24 [2018-11-18 15:18:32,036 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 15:18:32,037 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:32,611 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 15:18:32,612 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:18:32,612 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:18:32,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:32,653 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:32,655 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 15:18:32,658 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:32,663 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 15:18:32,664 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 15:18:32,672 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 15:18:32,682 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 2 xjuncts. [2018-11-18 15:18:32,682 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:24 [2018-11-18 15:18:32,689 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 15:18:32,689 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:32,966 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 15:18:32,982 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 15:18:32,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 6, 6] total 15 [2018-11-18 15:18:32,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 15:18:32,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 15:18:32,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2018-11-18 15:18:32,983 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 16 states. [2018-11-18 15:18:33,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:33,603 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2018-11-18 15:18:33,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 15:18:33,604 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 61 [2018-11-18 15:18:33,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:33,604 INFO L225 Difference]: With dead ends: 77 [2018-11-18 15:18:33,604 INFO L226 Difference]: Without dead ends: 77 [2018-11-18 15:18:33,604 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 225 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2018-11-18 15:18:33,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-11-18 15:18:33,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-11-18 15:18:33,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-11-18 15:18:33,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 77 transitions. [2018-11-18 15:18:33,607 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 77 transitions. Word has length 61 [2018-11-18 15:18:33,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:33,608 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 77 transitions. [2018-11-18 15:18:33,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 15:18:33,608 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2018-11-18 15:18:33,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-11-18 15:18:33,608 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:33,608 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:33,608 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 15:18:33,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:33,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1157403323, now seen corresponding path program 2 times [2018-11-18 15:18:33,609 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:18:33,609 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/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 15:18:33,620 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 15:18:33,746 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 15:18:33,746 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:18:33,775 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:33,778 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 15:18:33,784 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:33,789 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 15:18:33,790 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 15:18:33,803 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 15:18:33,813 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 2 xjuncts. [2018-11-18 15:18:33,813 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:24 [2018-11-18 15:18:33,941 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 15:18:33,941 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:35,109 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 15:18:35,111 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:18:35,111 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:18:35,117 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 15:18:35,165 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 15:18:35,165 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:18:35,171 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:35,174 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 15:18:35,179 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:35,186 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 15:18:35,186 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 15:18:35,197 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 15:18:35,210 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 2 xjuncts. [2018-11-18 15:18:35,210 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:24 [2018-11-18 15:18:35,263 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 15:18:35,263 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:37,348 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 15:18:37,365 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 15:18:37,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9, 11] total 26 [2018-11-18 15:18:37,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-11-18 15:18:37,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-11-18 15:18:37,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2018-11-18 15:18:37,366 INFO L87 Difference]: Start difference. First operand 77 states and 77 transitions. Second operand 27 states. [2018-11-18 15:18:38,761 WARN L180 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 27 [2018-11-18 15:18:39,817 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 24 [2018-11-18 15:18:40,777 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2018-11-18 15:18:42,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:42,167 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2018-11-18 15:18:42,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 15:18:42,167 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 76 [2018-11-18 15:18:42,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:42,168 INFO L225 Difference]: With dead ends: 107 [2018-11-18 15:18:42,168 INFO L226 Difference]: Without dead ends: 107 [2018-11-18 15:18:42,168 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 272 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2018-11-18 15:18:42,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-11-18 15:18:42,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2018-11-18 15:18:42,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-11-18 15:18:42,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 107 transitions. [2018-11-18 15:18:42,171 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 107 transitions. Word has length 76 [2018-11-18 15:18:42,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:42,172 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 107 transitions. [2018-11-18 15:18:42,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-11-18 15:18:42,172 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2018-11-18 15:18:42,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-11-18 15:18:42,172 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:42,172 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:42,173 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 15:18:42,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:42,173 INFO L82 PathProgramCache]: Analyzing trace with hash 782737125, now seen corresponding path program 3 times [2018-11-18 15:18:42,173 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:18:42,173 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/cvc4nyu Starting monitored process 18 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 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 15:18:42,185 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-18 15:18:44,797 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-11-18 15:18:44,797 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:18:44,858 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:45,039 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 10 proven. 245 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 15:18:45,040 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:46,720 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 10 proven. 245 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 15:18:46,723 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:18:46,723 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:18:46,729 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 15:18:47,992 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-11-18 15:18:47,993 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:18:48,003 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:48,006 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 15:18:48,010 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:48,016 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 15:18:48,016 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 15:18:48,025 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 15:18:48,035 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 2 xjuncts. [2018-11-18 15:18:48,035 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:24 [2018-11-18 15:18:48,824 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 10 proven. 245 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 15:18:48,824 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:51,662 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2018-11-18 15:18:52,472 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2018-11-18 15:18:53,694 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2018-11-18 15:18:55,471 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 15:18:55,490 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 15:18:55,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21, 16, 20] total 69 [2018-11-18 15:18:55,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-11-18 15:18:55,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-11-18 15:18:55,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=759, Invalid=3933, Unknown=0, NotChecked=0, Total=4692 [2018-11-18 15:18:55,492 INFO L87 Difference]: Start difference. First operand 107 states and 107 transitions. Second operand 69 states. [2018-11-18 15:18:57,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:57,575 INFO L93 Difference]: Finished difference Result 105 states and 104 transitions. [2018-11-18 15:18:57,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 15:18:57,575 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 106 [2018-11-18 15:18:57,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:57,576 INFO L225 Difference]: With dead ends: 105 [2018-11-18 15:18:57,576 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:18:57,577 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 340 SyntacticMatches, 15 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1878 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=1150, Invalid=5330, Unknown=0, NotChecked=0, Total=6480 [2018-11-18 15:18:57,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:18:57,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:18:57,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:18:57,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:18:57,578 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 106 [2018-11-18 15:18:57,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:57,578 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:18:57,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has 69 states. [2018-11-18 15:18:57,578 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:18:57,578 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:18:57,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:18:57 BoogieIcfgContainer [2018-11-18 15:18:57,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:18:57,583 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:18:57,583 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:18:57,583 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:18:57,583 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:18:14" (3/4) ... [2018-11-18 15:18:57,586 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:18:57,592 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:18:57,593 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:18:57,593 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-11-18 15:18:57,596 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-11-18 15:18:57,597 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 15:18:57,597 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 15:18:57,597 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 15:18:57,627 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3dae3d95-85ec-46d4-8acf-9a3d9ed966b4/bin-2019/utaipan/witness.graphml [2018-11-18 15:18:57,627 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:18:57,627 INFO L168 Benchmark]: Toolchain (without parser) took 43675.11 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 277.9 MB). Free memory was 949.7 MB in the beginning and 957.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 270.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:57,628 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 15:18:57,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.41 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:57,628 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.61 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:18:57,628 INFO L168 Benchmark]: Boogie Preprocessor took 21.61 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:18:57,629 INFO L168 Benchmark]: RCFGBuilder took 258.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.4 MB). Free memory was 933.6 MB in the beginning and 1.0 GB in the end (delta: -113.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:57,629 INFO L168 Benchmark]: TraceAbstraction took 43141.43 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 204.5 MB). Free memory was 1.0 GB in the beginning and 957.5 MB in the end (delta: 89.9 MB). Peak memory consumption was 294.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:57,629 INFO L168 Benchmark]: Witness Printer took 44.14 ms. Allocated memory is still 1.3 GB. Free memory is still 957.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:18:57,631 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 186.41 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.61 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.61 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 258.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.4 MB). Free memory was 933.6 MB in the beginning and 1.0 GB in the end (delta: -113.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 43141.43 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 204.5 MB). Free memory was 1.0 GB in the beginning and 957.5 MB in the end (delta: 89.9 MB). Peak memory consumption was 294.4 MB. Max. memory is 11.5 GB. * Witness Printer took 44.14 ms. Allocated memory is still 1.3 GB. Free memory is still 957.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 5 error locations. SAFE Result, 43.1s OverallTime, 10 OverallIterations, 11 TraceHistogramMax, 10.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 212 SDtfs, 1557 SDslu, 1858 SDs, 0 SdLazy, 2743 SolverSat, 443 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1584 GetRequests, 1259 SyntacticMatches, 42 SemanticMatches, 283 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4187 ImplicationChecksByTransitivity, 27.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 22 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 6.3s SatisfiabilityAnalysisTime, 25.1s InterpolantComputationTime, 814 NumberOfCodeBlocks, 814 NumberOfCodeBlocksAsserted, 62 NumberOfCheckSat, 1512 ConstructedInterpolants, 0 QuantifiedInterpolants, 1428138 SizeOfPredicates, 42 NumberOfNonLiveVariables, 2010 ConjunctsInSsa, 218 ConjunctsInUnsatCore, 32 InterpolantComputations, 4 PerfectInterpolantSequences, 2540/4836 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...