./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers4_true-valid-memsafety.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers4_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b8a667539b0a7850f9a7aa38ebbe1ead0e2c55d4 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:27:07,757 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:27:07,758 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:27:07,766 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:27:07,766 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:27:07,766 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:27:07,767 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:27:07,768 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:27:07,769 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:27:07,770 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:27:07,771 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:27:07,771 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:27:07,771 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:27:07,772 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:27:07,773 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:27:07,774 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:27:07,774 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:27:07,775 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:27:07,777 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:27:07,778 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:27:07,779 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:27:07,779 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:27:07,781 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:27:07,781 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:27:07,781 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:27:07,782 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:27:07,782 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:27:07,783 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:27:07,784 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:27:07,784 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:27:07,785 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:27:07,785 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:27:07,785 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:27:07,785 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:27:07,786 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:27:07,786 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:27:07,787 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-23 14:27:07,797 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:27:07,797 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:27:07,798 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:27:07,798 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:27:07,798 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:27:07,798 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:27:07,799 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 14:27:07,799 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:27:07,799 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:27:07,799 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 14:27:07,799 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:27:07,799 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:27:07,799 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:27:07,799 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-23 14:27:07,800 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-23 14:27:07,800 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-23 14:27:07,800 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:27:07,800 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:27:07,800 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:27:07,800 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:27:07,801 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:27:07,801 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:27:07,802 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:27:07,802 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:27:07,802 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:27:07,802 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:27:07,802 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 14:27:07,802 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:27:07,802 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8a667539b0a7850f9a7aa38ebbe1ead0e2c55d4 [2018-11-23 14:27:07,824 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:27:07,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:27:07,834 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:27:07,835 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:27:07,835 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:27:07,835 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext3/getNumbers4_true-valid-memsafety.c [2018-11-23 14:27:07,876 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/data/12bfb79a4/5c6b65d3211449d6bfe487109a103a11/FLAGdc6f9ae4d [2018-11-23 14:27:08,276 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:27:08,276 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/sv-benchmarks/c/memsafety-ext3/getNumbers4_true-valid-memsafety.c [2018-11-23 14:27:08,280 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/data/12bfb79a4/5c6b65d3211449d6bfe487109a103a11/FLAGdc6f9ae4d [2018-11-23 14:27:08,289 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/data/12bfb79a4/5c6b65d3211449d6bfe487109a103a11 [2018-11-23 14:27:08,292 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:27:08,293 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-23 14:27:08,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:27:08,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:27:08,295 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:27:08,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:27:08" (1/1) ... [2018-11-23 14:27:08,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb4fcbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:08, skipping insertion in model container [2018-11-23 14:27:08,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:27:08" (1/1) ... [2018-11-23 14:27:08,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:27:08,316 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:27:08,434 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:27:08,444 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:27:08,459 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:27:08,475 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:27:08,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:08 WrapperNode [2018-11-23 14:27:08,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:27:08,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:27:08,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:27:08,476 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:27:08,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:08" (1/1) ... [2018-11-23 14:27:08,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:08" (1/1) ... [2018-11-23 14:27:08,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:08" (1/1) ... [2018-11-23 14:27:08,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:08" (1/1) ... [2018-11-23 14:27:08,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:08" (1/1) ... [2018-11-23 14:27:08,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:08" (1/1) ... [2018-11-23 14:27:08,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:08" (1/1) ... [2018-11-23 14:27:08,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:27:08,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:27:08,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:27:08,545 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:27:08,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:27:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 14:27:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:27:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-23 14:27:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers2 [2018-11-23 14:27:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers3 [2018-11-23 14:27:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers4 [2018-11-23 14:27:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 14:27:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2018-11-23 14:27:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-23 14:27:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 14:27:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers2 [2018-11-23 14:27:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 14:27:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers3 [2018-11-23 14:27:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers4 [2018-11-23 14:27:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 14:27:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 14:27:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 14:27:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 14:27:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:27:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 14:27:08,845 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:27:08,846 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-23 14:27:08,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:27:08 BoogieIcfgContainer [2018-11-23 14:27:08,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:27:08,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:27:08,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:27:08,849 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:27:08,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:27:08" (1/3) ... [2018-11-23 14:27:08,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc016bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:27:08, skipping insertion in model container [2018-11-23 14:27:08,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:27:08" (2/3) ... [2018-11-23 14:27:08,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc016bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:27:08, skipping insertion in model container [2018-11-23 14:27:08,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:27:08" (3/3) ... [2018-11-23 14:27:08,851 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers4_true-valid-memsafety.c [2018-11-23 14:27:08,857 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:27:08,862 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-11-23 14:27:08,870 INFO L257 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2018-11-23 14:27:08,887 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:27:08,887 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:27:08,887 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-23 14:27:08,888 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:27:08,888 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:27:08,888 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:27:08,888 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:27:08,888 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:27:08,888 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:27:08,898 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2018-11-23 14:27:08,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 14:27:08,904 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:08,904 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:08,906 INFO L423 AbstractCegarLoop]: === Iteration 1 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:08,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:08,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1833468390, now seen corresponding path program 1 times [2018-11-23 14:27:08,910 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:08,910 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:08,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:08,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:08,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:09,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:27:09,066 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:27:09,066 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:27:09,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:27:09,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:27:09,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:27:09,078 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 3 states. [2018-11-23 14:27:09,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:09,146 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2018-11-23 14:27:09,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:27:09,147 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-23 14:27:09,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:09,153 INFO L225 Difference]: With dead ends: 68 [2018-11-23 14:27:09,153 INFO L226 Difference]: Without dead ends: 63 [2018-11-23 14:27:09,154 INFO L631 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 [2018-11-23 14:27:09,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-23 14:27:09,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-11-23 14:27:09,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-11-23 14:27:09,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2018-11-23 14:27:09,177 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 12 [2018-11-23 14:27:09,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:09,177 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2018-11-23 14:27:09,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:27:09,178 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2018-11-23 14:27:09,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 14:27:09,178 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:09,178 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:09,179 INFO L423 AbstractCegarLoop]: === Iteration 2 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:09,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:09,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1833468391, now seen corresponding path program 1 times [2018-11-23 14:27:09,179 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:09,179 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:09,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:09,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:09,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:09,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:27:09,278 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:27:09,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 14:27:09,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 14:27:09,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 14:27:09,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:27:09,280 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand 4 states. [2018-11-23 14:27:09,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:09,390 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2018-11-23 14:27:09,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 14:27:09,391 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-23 14:27:09,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:09,391 INFO L225 Difference]: With dead ends: 66 [2018-11-23 14:27:09,392 INFO L226 Difference]: Without dead ends: 66 [2018-11-23 14:27:09,392 INFO L631 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 [2018-11-23 14:27:09,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-23 14:27:09,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2018-11-23 14:27:09,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-23 14:27:09,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2018-11-23 14:27:09,400 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 12 [2018-11-23 14:27:09,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:09,400 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2018-11-23 14:27:09,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 14:27:09,400 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2018-11-23 14:27:09,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 14:27:09,401 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:09,401 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:09,401 INFO L423 AbstractCegarLoop]: === Iteration 3 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:09,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:09,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1757784526, now seen corresponding path program 1 times [2018-11-23 14:27:09,402 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:09,402 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:09,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:09,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:09,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:09,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:27:09,551 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:09,551 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:27:09,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:09,594 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:09,633 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2018-11-23 14:27:09,649 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,660 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 48 [2018-11-23 14:27:09,686 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,687 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,688 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 52 [2018-11-23 14:27:09,713 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,717 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,721 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,722 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,723 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,725 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 60 [2018-11-23 14:27:09,759 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,765 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,766 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,773 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,774 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,776 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,777 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 44 [2018-11-23 14:27:09,778 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:09,795 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:09,807 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:09,836 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,837 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,842 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,848 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 62 [2018-11-23 14:27:09,908 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,909 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,911 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,912 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,913 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,914 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 68 [2018-11-23 14:27:09,952 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,953 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,953 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,955 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,956 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,957 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,957 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:09,958 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-11-23 14:27:09,959 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:09,974 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:10,007 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,007 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,009 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,010 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,011 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,012 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,013 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,021 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 74 [2018-11-23 14:27:10,097 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,098 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,098 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,100 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,101 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,105 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,107 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,108 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,110 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,111 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,112 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 49 [2018-11-23 14:27:10,114 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:10,144 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,145 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,145 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,146 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,147 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,147 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,148 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,149 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2018-11-23 14:27:10,150 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:10,183 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 14:27:10,204 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:10,222 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:10,231 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:10,243 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-23 14:27:10,247 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,252 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 27 [2018-11-23 14:27:10,256 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 27 [2018-11-23 14:27:10,259 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 34 [2018-11-23 14:27:10,262 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 45 [2018-11-23 14:27:10,263 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:10,272 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:10,278 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:10,289 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,289 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:10,290 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 45 [2018-11-23 14:27:10,294 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 11 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 59 [2018-11-23 14:27:10,302 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 74 [2018-11-23 14:27:10,303 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:10,318 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:10,325 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:10,338 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 14:27:10,351 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 14:27:10,373 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 7 dim-0 vars, and 2 xjuncts. [2018-11-23 14:27:10,373 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 6 variables, input treesize:73, output treesize:102 [2018-11-23 14:27:10,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:27:10,508 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:27:10,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2018-11-23 14:27:10,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 14:27:10,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 14:27:10,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-23 14:27:10,509 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 9 states. [2018-11-23 14:27:10,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:10,661 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2018-11-23 14:27:10,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 14:27:10,662 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-11-23 14:27:10,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:10,662 INFO L225 Difference]: With dead ends: 69 [2018-11-23 14:27:10,663 INFO L226 Difference]: Without dead ends: 69 [2018-11-23 14:27:10,663 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2018-11-23 14:27:10,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-23 14:27:10,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-11-23 14:27:10,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-23 14:27:10,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2018-11-23 14:27:10,668 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 15 [2018-11-23 14:27:10,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:10,669 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2018-11-23 14:27:10,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 14:27:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2018-11-23 14:27:10,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 14:27:10,669 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:10,669 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:10,670 INFO L423 AbstractCegarLoop]: === Iteration 4 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:10,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:10,670 INFO L82 PathProgramCache]: Analyzing trace with hash -16477363, now seen corresponding path program 1 times [2018-11-23 14:27:10,670 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:10,670 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:10,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:10,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:10,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:10,719 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 14:27:10,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:27:10,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 14:27:10,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 14:27:10,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 14:27:10,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-23 14:27:10,720 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand 6 states. [2018-11-23 14:27:10,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:10,810 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2018-11-23 14:27:10,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 14:27:10,812 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-11-23 14:27:10,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:10,812 INFO L225 Difference]: With dead ends: 68 [2018-11-23 14:27:10,812 INFO L226 Difference]: Without dead ends: 68 [2018-11-23 14:27:10,813 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:27:10,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-11-23 14:27:10,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-11-23 14:27:10,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-23 14:27:10,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2018-11-23 14:27:10,816 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 26 [2018-11-23 14:27:10,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:10,817 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2018-11-23 14:27:10,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 14:27:10,817 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2018-11-23 14:27:10,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 14:27:10,817 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:10,817 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:10,817 INFO L423 AbstractCegarLoop]: === Iteration 5 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:10,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:10,817 INFO L82 PathProgramCache]: Analyzing trace with hash -16477362, now seen corresponding path program 1 times [2018-11-23 14:27:10,817 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:10,817 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:10,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:10,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:10,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:10,855 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:27:10,855 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:10,855 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:27:10,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:10,904 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:10,913 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:27:10,928 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:27:10,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-23 14:27:10,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 14:27:10,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 14:27:10,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-23 14:27:10,929 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 7 states. [2018-11-23 14:27:10,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:10,951 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2018-11-23 14:27:10,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 14:27:10,956 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-23 14:27:10,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:10,957 INFO L225 Difference]: With dead ends: 73 [2018-11-23 14:27:10,957 INFO L226 Difference]: Without dead ends: 73 [2018-11-23 14:27:10,957 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-23 14:27:10,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-23 14:27:10,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2018-11-23 14:27:10,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-23 14:27:10,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2018-11-23 14:27:10,961 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 26 [2018-11-23 14:27:10,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:10,962 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2018-11-23 14:27:10,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 14:27:10,962 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2018-11-23 14:27:10,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-23 14:27:10,962 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:10,962 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:10,963 INFO L423 AbstractCegarLoop]: === Iteration 6 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:10,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:10,963 INFO L82 PathProgramCache]: Analyzing trace with hash 502160117, now seen corresponding path program 2 times [2018-11-23 14:27:10,963 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:10,963 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:10,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:10,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:10,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:11,014 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:27:11,014 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:11,014 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:27:11,021 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 14:27:11,044 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 14:27:11,045 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 14:27:11,047 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:11,069 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2018-11-23 14:27:11,075 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,081 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 48 [2018-11-23 14:27:11,101 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,103 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,107 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,113 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 62 [2018-11-23 14:27:11,161 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,162 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,164 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,166 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,167 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,169 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,170 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,176 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 74 [2018-11-23 14:27:11,237 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,238 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,239 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,240 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,241 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,242 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,243 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,244 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2018-11-23 14:27:11,245 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,278 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,279 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,280 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,283 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,284 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,285 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,287 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,289 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,290 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,291 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,292 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 49 [2018-11-23 14:27:11,292 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,318 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,349 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,350 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,352 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,354 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,355 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,356 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 61 [2018-11-23 14:27:11,381 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,382 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,383 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,384 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,385 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,385 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,387 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,388 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 37 [2018-11-23 14:27:11,388 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,401 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,425 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,450 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,452 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,453 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 49 [2018-11-23 14:27:11,470 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,471 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,472 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,474 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,474 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,475 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 57 [2018-11-23 14:27:11,511 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,513 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,514 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,515 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,516 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,519 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,520 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 37 [2018-11-23 14:27:11,520 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,536 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,550 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,577 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,587 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,600 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-23 14:27:11,602 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,608 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 27 [2018-11-23 14:27:11,610 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 27 [2018-11-23 14:27:11,612 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 34 [2018-11-23 14:27:11,615 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 45 [2018-11-23 14:27:11,615 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,623 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,628 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,639 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,640 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:11,641 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 45 [2018-11-23 14:27:11,644 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 11 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 59 [2018-11-23 14:27:11,647 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 74 [2018-11-23 14:27:11,647 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,662 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,670 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:11,684 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 14:27:11,695 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 14:27:11,715 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 7 dim-0 vars, and 2 xjuncts. [2018-11-23 14:27:11,715 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 6 variables, input treesize:73, output treesize:102 [2018-11-23 14:27:11,881 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-23 14:27:11,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:27:11,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2018-11-23 14:27:11,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 14:27:11,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 14:27:11,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-11-23 14:27:11,898 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 12 states. [2018-11-23 14:27:12,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:12,176 INFO L93 Difference]: Finished difference Result 76 states and 80 transitions. [2018-11-23 14:27:12,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 14:27:12,176 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2018-11-23 14:27:12,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:12,177 INFO L225 Difference]: With dead ends: 76 [2018-11-23 14:27:12,177 INFO L226 Difference]: Without dead ends: 76 [2018-11-23 14:27:12,177 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-11-23 14:27:12,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-11-23 14:27:12,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2018-11-23 14:27:12,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-23 14:27:12,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2018-11-23 14:27:12,180 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 29 [2018-11-23 14:27:12,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:12,181 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2018-11-23 14:27:12,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 14:27:12,181 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2018-11-23 14:27:12,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 14:27:12,181 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:12,181 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:12,181 INFO L423 AbstractCegarLoop]: === Iteration 7 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:12,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:12,182 INFO L82 PathProgramCache]: Analyzing trace with hash 532455402, now seen corresponding path program 1 times [2018-11-23 14:27:12,182 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:12,182 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:12,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:12,182 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:27:12,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:12,256 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:27:12,256 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:12,256 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:27:12,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:12,316 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:12,329 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:27:12,354 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:27:12,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-11-23 14:27:12,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 14:27:12,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 14:27:12,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-23 14:27:12,355 INFO L87 Difference]: Start difference. First operand 74 states and 78 transitions. Second operand 9 states. [2018-11-23 14:27:12,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:12,415 INFO L93 Difference]: Finished difference Result 79 states and 83 transitions. [2018-11-23 14:27:12,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 14:27:12,416 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2018-11-23 14:27:12,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:12,416 INFO L225 Difference]: With dead ends: 79 [2018-11-23 14:27:12,416 INFO L226 Difference]: Without dead ends: 79 [2018-11-23 14:27:12,417 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-23 14:27:12,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-11-23 14:27:12,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2018-11-23 14:27:12,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-11-23 14:27:12,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 81 transitions. [2018-11-23 14:27:12,420 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 81 transitions. Word has length 33 [2018-11-23 14:27:12,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:12,421 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 81 transitions. [2018-11-23 14:27:12,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 14:27:12,421 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 81 transitions. [2018-11-23 14:27:12,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-23 14:27:12,421 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:12,421 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:12,422 INFO L423 AbstractCegarLoop]: === Iteration 8 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:12,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:12,422 INFO L82 PathProgramCache]: Analyzing trace with hash -428261789, now seen corresponding path program 2 times [2018-11-23 14:27:12,422 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:12,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:12,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:12,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:12,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:12,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:12,502 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:27:12,503 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:12,503 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:27:12,513 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 14:27:12,531 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 14:27:12,531 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 14:27:12,534 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:12,537 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 55 [2018-11-23 14:27:12,541 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,550 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 55 [2018-11-23 14:27:12,554 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2018-11-23 14:27:12,572 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,573 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,579 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,580 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 56 [2018-11-23 14:27:12,608 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,617 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,618 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,619 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,621 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,626 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,627 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 69 [2018-11-23 14:27:12,632 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 63 [2018-11-23 14:27:12,632 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:12,644 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:12,654 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:12,665 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:12,689 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,691 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,699 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 55 [2018-11-23 14:27:12,754 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,756 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,760 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,763 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,766 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,787 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 73 [2018-11-23 14:27:12,857 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,858 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,858 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,860 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,860 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,861 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,864 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,865 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,865 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,867 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,872 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 87 [2018-11-23 14:27:12,877 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 75 [2018-11-23 14:27:12,878 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:12,920 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,921 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,922 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,922 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,923 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,925 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,926 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,927 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,928 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:12,932 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 85 [2018-11-23 14:27:12,933 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-11-23 14:27:12,988 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:27:13,048 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,049 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,049 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,050 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,051 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,051 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,052 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,053 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 85 [2018-11-23 14:27:13,056 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 71 [2018-11-23 14:27:13,057 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:13,073 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:13,130 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 14:27:13,203 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,204 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,206 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,207 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 67 [2018-11-23 14:27:13,234 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,234 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,235 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,236 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,236 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,237 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,239 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:13,240 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 73 [2018-11-23 14:27:13,244 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 67 [2018-11-23 14:27:13,244 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:13,261 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:13,273 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:13,345 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 14:27:13,429 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-23 14:27:13,507 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-23 14:27:13,593 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 20 dim-0 vars, and 6 xjuncts. [2018-11-23 14:27:13,593 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 5 variables, input treesize:59, output treesize:333 [2018-11-23 14:27:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-11-23 14:27:13,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:27:13,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2018-11-23 14:27:13,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 14:27:13,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 14:27:13,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-11-23 14:27:13,812 INFO L87 Difference]: Start difference. First operand 77 states and 81 transitions. Second operand 10 states. [2018-11-23 14:27:14,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:14,038 INFO L93 Difference]: Finished difference Result 81 states and 85 transitions. [2018-11-23 14:27:14,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 14:27:14,039 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2018-11-23 14:27:14,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:14,039 INFO L225 Difference]: With dead ends: 81 [2018-11-23 14:27:14,040 INFO L226 Difference]: Without dead ends: 81 [2018-11-23 14:27:14,040 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=164, Unknown=0, NotChecked=0, Total=272 [2018-11-23 14:27:14,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-11-23 14:27:14,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2018-11-23 14:27:14,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-11-23 14:27:14,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2018-11-23 14:27:14,043 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 36 [2018-11-23 14:27:14,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:14,043 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2018-11-23 14:27:14,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 14:27:14,043 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2018-11-23 14:27:14,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-23 14:27:14,044 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:14,044 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:14,044 INFO L423 AbstractCegarLoop]: === Iteration 9 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:14,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:14,044 INFO L82 PathProgramCache]: Analyzing trace with hash 507961675, now seen corresponding path program 1 times [2018-11-23 14:27:14,044 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:14,045 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:14,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:14,045 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:27:14,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:14,129 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:27:14,129 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:14,129 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:27:14,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:14,157 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:14,170 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:27:14,188 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:27:14,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2018-11-23 14:27:14,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 14:27:14,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 14:27:14,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-23 14:27:14,188 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 11 states. [2018-11-23 14:27:14,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:14,213 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2018-11-23 14:27:14,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 14:27:14,214 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2018-11-23 14:27:14,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:14,215 INFO L225 Difference]: With dead ends: 84 [2018-11-23 14:27:14,215 INFO L226 Difference]: Without dead ends: 84 [2018-11-23 14:27:14,215 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-23 14:27:14,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-11-23 14:27:14,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2018-11-23 14:27:14,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-11-23 14:27:14,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 86 transitions. [2018-11-23 14:27:14,218 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 86 transitions. Word has length 39 [2018-11-23 14:27:14,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:14,219 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 86 transitions. [2018-11-23 14:27:14,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 14:27:14,219 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 86 transitions. [2018-11-23 14:27:14,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-23 14:27:14,219 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:14,220 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:14,220 INFO L423 AbstractCegarLoop]: === Iteration 10 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:14,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:14,220 INFO L82 PathProgramCache]: Analyzing trace with hash 23527684, now seen corresponding path program 2 times [2018-11-23 14:27:14,220 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:14,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:14,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:14,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:14,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:14,280 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:27:14,280 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:14,280 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:27:14,287 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 14:27:14,302 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 14:27:14,303 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 14:27:14,304 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:14,308 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-23 14:27:14,314 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,319 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 27 [2018-11-23 14:27:14,323 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-11-23 14:27:14,326 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,327 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,327 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 30 [2018-11-23 14:27:14,330 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,331 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,332 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,333 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 41 [2018-11-23 14:27:14,333 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,344 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,350 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,364 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,367 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,375 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33 [2018-11-23 14:27:14,378 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,379 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,381 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,381 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,382 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,383 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 55 [2018-11-23 14:27:14,385 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,386 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,388 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,388 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,389 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 70 [2018-11-23 14:27:14,389 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,402 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,417 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,418 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,418 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2018-11-23 14:27:14,421 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,422 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,424 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,425 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 45 [2018-11-23 14:27:14,425 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,448 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,468 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 14:27:14,494 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:27:14,517 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:27:14,557 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2018-11-23 14:27:14,561 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,567 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 40 [2018-11-23 14:27:14,573 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,575 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,582 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 43 [2018-11-23 14:27:14,618 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,618 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,620 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,622 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,624 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,629 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 64 [2018-11-23 14:27:14,678 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,678 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,679 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,680 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,680 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,681 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,682 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,683 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2018-11-23 14:27:14,683 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,714 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,715 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,716 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,718 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,719 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,720 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,723 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,725 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,726 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,727 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,728 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 41 [2018-11-23 14:27:14,729 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,747 INFO L267 ElimStorePlain]: Start of recursive call 15: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,767 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,768 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,770 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,771 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 51 [2018-11-23 14:27:14,789 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,789 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,790 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,791 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,792 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,792 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,794 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,795 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2018-11-23 14:27:14,795 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,803 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,814 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,832 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2018-11-23 14:27:14,839 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,840 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,843 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,843 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 47 [2018-11-23 14:27:14,860 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,860 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,861 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,862 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,862 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,865 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:14,865 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2018-11-23 14:27:14,865 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,872 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,877 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,887 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,892 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:14,920 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 7 dim-0 vars, and 2 xjuncts. [2018-11-23 14:27:14,920 INFO L202 ElimStorePlain]: Needed 22 recursive calls to eliminate 6 variables, input treesize:59, output treesize:94 [2018-11-23 14:27:15,013 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-11-23 14:27:15,029 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:27:15,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 14 [2018-11-23 14:27:15,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 14:27:15,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 14:27:15,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2018-11-23 14:27:15,029 INFO L87 Difference]: Start difference. First operand 82 states and 86 transitions. Second operand 14 states. [2018-11-23 14:27:15,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:15,238 INFO L93 Difference]: Finished difference Result 86 states and 90 transitions. [2018-11-23 14:27:15,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 14:27:15,239 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 42 [2018-11-23 14:27:15,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:15,239 INFO L225 Difference]: With dead ends: 86 [2018-11-23 14:27:15,240 INFO L226 Difference]: Without dead ends: 86 [2018-11-23 14:27:15,240 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=172, Invalid=334, Unknown=0, NotChecked=0, Total=506 [2018-11-23 14:27:15,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-11-23 14:27:15,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2018-11-23 14:27:15,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-11-23 14:27:15,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2018-11-23 14:27:15,243 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 42 [2018-11-23 14:27:15,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:15,244 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2018-11-23 14:27:15,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 14:27:15,244 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2018-11-23 14:27:15,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-23 14:27:15,247 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:15,247 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:15,247 INFO L423 AbstractCegarLoop]: === Iteration 11 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:15,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:15,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1213368515, now seen corresponding path program 1 times [2018-11-23 14:27:15,247 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:15,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:15,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:15,248 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:27:15,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:15,280 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-11-23 14:27:15,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:27:15,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 14:27:15,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 14:27:15,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 14:27:15,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-23 14:27:15,281 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand 6 states. [2018-11-23 14:27:15,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:15,336 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2018-11-23 14:27:15,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 14:27:15,336 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2018-11-23 14:27:15,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:15,337 INFO L225 Difference]: With dead ends: 83 [2018-11-23 14:27:15,337 INFO L226 Difference]: Without dead ends: 83 [2018-11-23 14:27:15,337 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:27:15,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-11-23 14:27:15,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-11-23 14:27:15,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-11-23 14:27:15,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2018-11-23 14:27:15,340 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 54 [2018-11-23 14:27:15,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:15,340 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2018-11-23 14:27:15,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 14:27:15,340 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2018-11-23 14:27:15,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-23 14:27:15,341 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:15,341 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:15,341 INFO L423 AbstractCegarLoop]: === Iteration 12 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:15,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:15,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1213368514, now seen corresponding path program 1 times [2018-11-23 14:27:15,341 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:15,341 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:15,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:15,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:15,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:15,434 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:27:15,435 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:15,435 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:27:15,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:15,485 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:15,505 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:27:15,528 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:27:15,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2018-11-23 14:27:15,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-23 14:27:15,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-23 14:27:15,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-11-23 14:27:15,529 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand 13 states. [2018-11-23 14:27:15,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:15,596 INFO L93 Difference]: Finished difference Result 86 states and 90 transitions. [2018-11-23 14:27:15,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 14:27:15,598 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 54 [2018-11-23 14:27:15,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:15,599 INFO L225 Difference]: With dead ends: 86 [2018-11-23 14:27:15,599 INFO L226 Difference]: Without dead ends: 86 [2018-11-23 14:27:15,599 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-11-23 14:27:15,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-11-23 14:27:15,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-11-23 14:27:15,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-11-23 14:27:15,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2018-11-23 14:27:15,602 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 54 [2018-11-23 14:27:15,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:15,602 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2018-11-23 14:27:15,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-23 14:27:15,602 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2018-11-23 14:27:15,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-23 14:27:15,603 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:15,603 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:15,603 INFO L423 AbstractCegarLoop]: === Iteration 13 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:15,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:15,603 INFO L82 PathProgramCache]: Analyzing trace with hash -590033307, now seen corresponding path program 2 times [2018-11-23 14:27:15,603 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:15,603 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:15,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:15,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:15,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:15,652 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-11-23 14:27:15,653 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:15,653 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:27:15,661 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 14:27:15,684 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 14:27:15,684 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 14:27:15,687 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:15,693 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-23 14:27:15,696 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,718 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 27 [2018-11-23 14:27:15,720 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,722 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,730 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33 [2018-11-23 14:27:15,732 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,733 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,733 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2018-11-23 14:27:15,736 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,737 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,738 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,738 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 45 [2018-11-23 14:27:15,739 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:15,751 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:15,767 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,768 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,769 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,770 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,770 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,771 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,772 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 55 [2018-11-23 14:27:15,774 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,775 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,776 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,777 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,777 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 70 [2018-11-23 14:27:15,778 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:15,792 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:15,807 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 14:27:15,829 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-11-23 14:27:15,834 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,835 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,836 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 30 [2018-11-23 14:27:15,849 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,851 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,852 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,853 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 41 [2018-11-23 14:27:15,854 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:15,864 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:15,869 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:15,891 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:27:15,912 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:27:15,941 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2018-11-23 14:27:15,943 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,948 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 40 [2018-11-23 14:27:15,950 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,954 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,958 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 43 [2018-11-23 14:27:15,991 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,992 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,994 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:15,995 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 58 [2018-11-23 14:27:16,017 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,018 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,019 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,019 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,020 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,021 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,023 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,024 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 40 [2018-11-23 14:27:16,024 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:16,034 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:16,051 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,052 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,054 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,056 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,058 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,063 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 64 [2018-11-23 14:27:16,111 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,111 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,112 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,113 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,114 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,117 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,119 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,120 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,121 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,122 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,122 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 41 [2018-11-23 14:27:16,122 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:16,147 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,148 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,148 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,149 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,150 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,151 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,153 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,154 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2018-11-23 14:27:16,154 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:16,170 INFO L267 ElimStorePlain]: Start of recursive call 17: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:16,183 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:16,197 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2018-11-23 14:27:16,204 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,205 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,210 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,211 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 47 [2018-11-23 14:27:16,227 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,227 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,228 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,229 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,230 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,233 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,233 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2018-11-23 14:27:16,233 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:16,240 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:16,245 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:16,256 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:16,261 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:16,287 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 7 dim-0 vars, and 2 xjuncts. [2018-11-23 14:27:16,288 INFO L202 ElimStorePlain]: Needed 22 recursive calls to eliminate 6 variables, input treesize:59, output treesize:94 [2018-11-23 14:27:16,390 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-11-23 14:27:16,412 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:27:16,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 9 [2018-11-23 14:27:16,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 14:27:16,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 14:27:16,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-23 14:27:16,413 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand 9 states. [2018-11-23 14:27:16,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:16,595 INFO L93 Difference]: Finished difference Result 95 states and 99 transitions. [2018-11-23 14:27:16,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 14:27:16,595 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2018-11-23 14:27:16,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:16,596 INFO L225 Difference]: With dead ends: 95 [2018-11-23 14:27:16,596 INFO L226 Difference]: Without dead ends: 95 [2018-11-23 14:27:16,596 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-11-23 14:27:16,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-11-23 14:27:16,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91. [2018-11-23 14:27:16,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-11-23 14:27:16,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2018-11-23 14:27:16,599 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 57 [2018-11-23 14:27:16,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:16,599 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2018-11-23 14:27:16,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 14:27:16,599 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2018-11-23 14:27:16,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-23 14:27:16,600 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:16,600 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:16,600 INFO L423 AbstractCegarLoop]: === Iteration 14 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:16,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:16,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1242768695, now seen corresponding path program 1 times [2018-11-23 14:27:16,600 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:16,601 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:16,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:16,601 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:27:16,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:16,640 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-11-23 14:27:16,640 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:16,640 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/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 [2018-11-23 14:27:16,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:16,682 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:16,700 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-11-23 14:27:16,715 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:27:16,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-11-23 14:27:16,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 14:27:16,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 14:27:16,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-23 14:27:16,716 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand 6 states. [2018-11-23 14:27:16,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:16,726 INFO L93 Difference]: Finished difference Result 100 states and 104 transitions. [2018-11-23 14:27:16,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 14:27:16,727 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2018-11-23 14:27:16,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:16,727 INFO L225 Difference]: With dead ends: 100 [2018-11-23 14:27:16,727 INFO L226 Difference]: Without dead ends: 100 [2018-11-23 14:27:16,727 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-23 14:27:16,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-11-23 14:27:16,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2018-11-23 14:27:16,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-11-23 14:27:16,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 100 transitions. [2018-11-23 14:27:16,730 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 100 transitions. Word has length 63 [2018-11-23 14:27:16,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:16,730 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 100 transitions. [2018-11-23 14:27:16,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 14:27:16,730 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 100 transitions. [2018-11-23 14:27:16,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-11-23 14:27:16,731 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:16,731 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:16,731 INFO L423 AbstractCegarLoop]: === Iteration 15 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:16,731 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:16,731 INFO L82 PathProgramCache]: Analyzing trace with hash 446605051, now seen corresponding path program 2 times [2018-11-23 14:27:16,731 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:16,731 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:16,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:16,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:16,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:16,794 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-11-23 14:27:16,795 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:16,795 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:27:16,805 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 14:27:16,825 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 14:27:16,825 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 14:27:16,827 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:16,837 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 41 [2018-11-23 14:27:16,839 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,847 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 44 [2018-11-23 14:27:16,850 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2018-11-23 14:27:16,855 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2018-11-23 14:27:16,864 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,865 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,866 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,871 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,872 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 54 [2018-11-23 14:27:16,877 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 49 [2018-11-23 14:27:16,877 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:16,894 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:16,903 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:16,913 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:16,935 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,939 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,948 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 47 [2018-11-23 14:27:16,968 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 44 [2018-11-23 14:27:16,991 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,992 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,993 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,998 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:16,998 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 58 [2018-11-23 14:27:17,005 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 53 [2018-11-23 14:27:17,006 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:17,020 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:17,035 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:17,076 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,079 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,083 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,109 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 50 [2018-11-23 14:27:17,183 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,183 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,184 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,187 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,188 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 73 [2018-11-23 14:27:17,192 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 57 [2018-11-23 14:27:17,193 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:17,206 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:17,228 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,229 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,230 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,233 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,235 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,237 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,239 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,244 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 75 [2018-11-23 14:27:17,250 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 73 [2018-11-23 14:27:17,250 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:17,291 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,293 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,294 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,295 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,295 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,297 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,299 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,299 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,301 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:17,305 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 73 [2018-11-23 14:27:17,306 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-11-23 14:27:17,356 INFO L267 ElimStorePlain]: Start of recursive call 15: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:27:17,410 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 14:27:17,472 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 14:27:17,532 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-23 14:27:17,588 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-23 14:27:17,645 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 20 dim-0 vars, and 6 xjuncts. [2018-11-23 14:27:17,645 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 5 variables, input treesize:42, output treesize:261 [2018-11-23 14:27:17,813 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2018-11-23 14:27:17,829 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:27:17,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2018-11-23 14:27:17,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 14:27:17,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 14:27:17,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 14:27:17,829 INFO L87 Difference]: Start difference. First operand 96 states and 100 transitions. Second operand 7 states. [2018-11-23 14:27:17,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:17,939 INFO L93 Difference]: Finished difference Result 104 states and 108 transitions. [2018-11-23 14:27:17,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 14:27:17,939 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2018-11-23 14:27:17,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:17,940 INFO L225 Difference]: With dead ends: 104 [2018-11-23 14:27:17,940 INFO L226 Difference]: Without dead ends: 104 [2018-11-23 14:27:17,940 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-11-23 14:27:17,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-23 14:27:17,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2018-11-23 14:27:17,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-11-23 14:27:17,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 104 transitions. [2018-11-23 14:27:17,943 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 104 transitions. Word has length 68 [2018-11-23 14:27:17,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:17,943 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 104 transitions. [2018-11-23 14:27:17,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 14:27:17,943 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 104 transitions. [2018-11-23 14:27:17,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-11-23 14:27:17,944 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:17,944 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:17,944 INFO L423 AbstractCegarLoop]: === Iteration 16 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:17,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:17,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1853794826, now seen corresponding path program 1 times [2018-11-23 14:27:17,944 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:17,945 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:17,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:17,945 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:27:17,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:17,991 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-11-23 14:27:17,991 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:17,991 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/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 [2018-11-23 14:27:17,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:18,025 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:18,039 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-11-23 14:27:18,055 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:27:18,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2018-11-23 14:27:18,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 14:27:18,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 14:27:18,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:27:18,056 INFO L87 Difference]: Start difference. First operand 100 states and 104 transitions. Second operand 8 states. [2018-11-23 14:27:18,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:18,076 INFO L93 Difference]: Finished difference Result 109 states and 113 transitions. [2018-11-23 14:27:18,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 14:27:18,076 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 73 [2018-11-23 14:27:18,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:18,077 INFO L225 Difference]: With dead ends: 109 [2018-11-23 14:27:18,077 INFO L226 Difference]: Without dead ends: 109 [2018-11-23 14:27:18,077 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:27:18,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-11-23 14:27:18,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2018-11-23 14:27:18,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-11-23 14:27:18,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 109 transitions. [2018-11-23 14:27:18,079 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 109 transitions. Word has length 73 [2018-11-23 14:27:18,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:18,079 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 109 transitions. [2018-11-23 14:27:18,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 14:27:18,079 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 109 transitions. [2018-11-23 14:27:18,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-11-23 14:27:18,079 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:18,079 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:18,080 INFO L423 AbstractCegarLoop]: === Iteration 17 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:18,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:18,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1123262532, now seen corresponding path program 2 times [2018-11-23 14:27:18,080 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:18,080 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:18,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:18,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:18,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:18,131 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-11-23 14:27:18,131 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:18,131 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:27:18,138 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 14:27:18,159 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 14:27:18,159 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 14:27:18,162 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:18,166 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 23 [2018-11-23 14:27:18,180 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,190 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 29 [2018-11-23 14:27:18,192 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,195 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,199 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 35 [2018-11-23 14:27:18,203 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,205 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,209 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 41 [2018-11-23 14:27:18,239 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,240 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,241 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,244 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,245 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,246 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,246 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,247 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29 [2018-11-23 14:27:18,247 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,269 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,270 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,271 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,274 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,277 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2018-11-23 14:27:18,277 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,290 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,308 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2018-11-23 14:27:18,315 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,316 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,316 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,319 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,320 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-23 14:27:18,320 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,327 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,342 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,358 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2018-11-23 14:27:18,361 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2018-11-23 14:27:18,367 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,368 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,369 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,372 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,372 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-23 14:27:18,372 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,377 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,381 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,390 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,395 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,402 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-23 14:27:18,404 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,408 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 27 [2018-11-23 14:27:18,410 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,411 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,416 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33 [2018-11-23 14:27:18,419 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2018-11-23 14:27:18,422 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 37 [2018-11-23 14:27:18,423 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,430 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,442 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,443 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,445 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,449 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 39 [2018-11-23 14:27:18,452 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,454 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:18,455 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 62 [2018-11-23 14:27:18,455 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,475 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 52 [2018-11-23 14:27:18,475 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,492 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 14:27:18,509 INFO L267 ElimStorePlain]: Start of recursive call 15: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:27:18,532 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-11-23 14:27:18,535 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2018-11-23 14:27:18,538 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 33 [2018-11-23 14:27:18,538 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,546 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,551 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:18,579 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 14:27:18,603 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 14:27:18,634 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 7 dim-0 vars, and 2 xjuncts. [2018-11-23 14:27:18,634 INFO L202 ElimStorePlain]: Needed 23 recursive calls to eliminate 6 variables, input treesize:42, output treesize:78 [2018-11-23 14:27:18,762 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-23 14:27:18,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:27:18,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2018-11-23 14:27:18,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 14:27:18,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 14:27:18,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-11-23 14:27:18,782 INFO L87 Difference]: Start difference. First operand 105 states and 109 transitions. Second operand 11 states. [2018-11-23 14:27:18,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:18,895 INFO L93 Difference]: Finished difference Result 113 states and 117 transitions. [2018-11-23 14:27:18,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 14:27:18,895 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 78 [2018-11-23 14:27:18,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:18,896 INFO L225 Difference]: With dead ends: 113 [2018-11-23 14:27:18,896 INFO L226 Difference]: Without dead ends: 113 [2018-11-23 14:27:18,896 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2018-11-23 14:27:18,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-11-23 14:27:18,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 109. [2018-11-23 14:27:18,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-11-23 14:27:18,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 113 transitions. [2018-11-23 14:27:18,899 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 113 transitions. Word has length 78 [2018-11-23 14:27:18,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:18,899 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 113 transitions. [2018-11-23 14:27:18,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 14:27:18,899 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 113 transitions. [2018-11-23 14:27:18,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-23 14:27:18,900 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:18,900 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:18,900 INFO L423 AbstractCegarLoop]: === Iteration 18 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:18,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:18,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1854312006, now seen corresponding path program 1 times [2018-11-23 14:27:18,900 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:18,900 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:18,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:18,901 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:27:18,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:18,947 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2018-11-23 14:27:18,947 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:27:18,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 14:27:18,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 14:27:18,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 14:27:18,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-23 14:27:18,948 INFO L87 Difference]: Start difference. First operand 109 states and 113 transitions. Second operand 6 states. [2018-11-23 14:27:19,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:19,009 INFO L93 Difference]: Finished difference Result 108 states and 112 transitions. [2018-11-23 14:27:19,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 14:27:19,009 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2018-11-23 14:27:19,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:19,010 INFO L225 Difference]: With dead ends: 108 [2018-11-23 14:27:19,010 INFO L226 Difference]: Without dead ends: 108 [2018-11-23 14:27:19,010 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:27:19,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-11-23 14:27:19,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2018-11-23 14:27:19,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-11-23 14:27:19,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 112 transitions. [2018-11-23 14:27:19,012 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 112 transitions. Word has length 92 [2018-11-23 14:27:19,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:19,013 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 112 transitions. [2018-11-23 14:27:19,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 14:27:19,013 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 112 transitions. [2018-11-23 14:27:19,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-23 14:27:19,014 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:19,014 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:19,014 INFO L423 AbstractCegarLoop]: === Iteration 19 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:19,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:19,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1854312005, now seen corresponding path program 1 times [2018-11-23 14:27:19,014 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:19,014 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:19,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:19,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:19,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:19,097 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-11-23 14:27:19,098 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:19,098 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/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 [2018-11-23 14:27:19,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:19,139 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:19,147 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-11-23 14:27:19,162 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:27:19,162 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2018-11-23 14:27:19,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 14:27:19,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 14:27:19,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-11-23 14:27:19,163 INFO L87 Difference]: Start difference. First operand 108 states and 112 transitions. Second operand 10 states. [2018-11-23 14:27:19,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:19,190 INFO L93 Difference]: Finished difference Result 117 states and 121 transitions. [2018-11-23 14:27:19,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 14:27:19,190 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 92 [2018-11-23 14:27:19,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:19,191 INFO L225 Difference]: With dead ends: 117 [2018-11-23 14:27:19,191 INFO L226 Difference]: Without dead ends: 117 [2018-11-23 14:27:19,191 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-11-23 14:27:19,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-11-23 14:27:19,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 113. [2018-11-23 14:27:19,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-11-23 14:27:19,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 117 transitions. [2018-11-23 14:27:19,193 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 117 transitions. Word has length 92 [2018-11-23 14:27:19,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:19,194 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 117 transitions. [2018-11-23 14:27:19,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 14:27:19,194 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 117 transitions. [2018-11-23 14:27:19,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-11-23 14:27:19,195 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:19,195 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:19,195 INFO L423 AbstractCegarLoop]: === Iteration 20 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:19,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:19,195 INFO L82 PathProgramCache]: Analyzing trace with hash 283421385, now seen corresponding path program 2 times [2018-11-23 14:27:19,195 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:19,195 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:19,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:19,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:19,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:19,263 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-11-23 14:27:19,263 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:19,263 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:27:19,279 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 14:27:19,306 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 14:27:19,306 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 14:27:19,309 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:19,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-23 14:27:19,340 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,370 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 27 [2018-11-23 14:27:19,374 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,379 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,396 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33 [2018-11-23 14:27:19,402 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2018-11-23 14:27:19,407 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,408 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,409 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,410 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 37 [2018-11-23 14:27:19,410 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,422 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,438 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,441 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,444 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,451 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 39 [2018-11-23 14:27:19,454 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,456 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,456 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,458 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,458 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,459 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,459 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 62 [2018-11-23 14:27:19,460 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,486 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,487 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,488 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,489 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 52 [2018-11-23 14:27:19,489 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,509 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 14:27:19,533 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:27:19,564 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-11-23 14:27:19,569 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2018-11-23 14:27:19,572 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,573 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,574 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,575 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 33 [2018-11-23 14:27:19,575 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,581 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,585 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,607 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 14:27:19,629 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 14:27:19,654 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 23 [2018-11-23 14:27:19,656 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,661 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 29 [2018-11-23 14:27:19,663 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2018-11-23 14:27:19,666 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2018-11-23 14:27:19,672 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,673 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,673 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,675 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,676 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2018-11-23 14:27:19,676 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,681 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,684 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,693 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,695 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,699 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 35 [2018-11-23 14:27:19,702 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2018-11-23 14:27:19,715 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,715 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,716 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,717 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,718 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-23 14:27:19,718 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,726 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,745 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,746 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,747 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,751 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 41 [2018-11-23 14:27:19,780 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,781 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,781 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,783 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,784 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,785 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,786 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,786 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29 [2018-11-23 14:27:19,786 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,803 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,804 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,804 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,806 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:19,806 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2018-11-23 14:27:19,807 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,816 INFO L267 ElimStorePlain]: Start of recursive call 21: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,824 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,831 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,834 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:19,859 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 7 dim-0 vars, and 2 xjuncts. [2018-11-23 14:27:19,859 INFO L202 ElimStorePlain]: Needed 23 recursive calls to eliminate 6 variables, input treesize:42, output treesize:78 [2018-11-23 14:27:20,033 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2018-11-23 14:27:20,047 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:27:20,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 15 [2018-11-23 14:27:20,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-23 14:27:20,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-23 14:27:20,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2018-11-23 14:27:20,048 INFO L87 Difference]: Start difference. First operand 113 states and 117 transitions. Second operand 15 states. [2018-11-23 14:27:20,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:20,345 INFO L93 Difference]: Finished difference Result 122 states and 126 transitions. [2018-11-23 14:27:20,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 14:27:20,347 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 97 [2018-11-23 14:27:20,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:20,347 INFO L225 Difference]: With dead ends: 122 [2018-11-23 14:27:20,348 INFO L226 Difference]: Without dead ends: 122 [2018-11-23 14:27:20,348 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2018-11-23 14:27:20,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-11-23 14:27:20,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 118. [2018-11-23 14:27:20,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-11-23 14:27:20,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 122 transitions. [2018-11-23 14:27:20,351 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 122 transitions. Word has length 97 [2018-11-23 14:27:20,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:20,351 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 122 transitions. [2018-11-23 14:27:20,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-23 14:27:20,351 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 122 transitions. [2018-11-23 14:27:20,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-11-23 14:27:20,352 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:20,352 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:20,352 INFO L423 AbstractCegarLoop]: === Iteration 21 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:20,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:20,352 INFO L82 PathProgramCache]: Analyzing trace with hash 916743349, now seen corresponding path program 1 times [2018-11-23 14:27:20,352 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:20,352 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:20,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:20,353 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:27:20,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:20,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:20,388 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2018-11-23 14:27:20,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:27:20,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:27:20,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:27:20,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:27:20,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:27:20,389 INFO L87 Difference]: Start difference. First operand 118 states and 122 transitions. Second operand 3 states. [2018-11-23 14:27:20,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:20,402 INFO L93 Difference]: Finished difference Result 117 states and 121 transitions. [2018-11-23 14:27:20,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:27:20,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2018-11-23 14:27:20,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:20,403 INFO L225 Difference]: With dead ends: 117 [2018-11-23 14:27:20,403 INFO L226 Difference]: Without dead ends: 117 [2018-11-23 14:27:20,403 INFO L631 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 [2018-11-23 14:27:20,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-11-23 14:27:20,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-11-23 14:27:20,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-11-23 14:27:20,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 121 transitions. [2018-11-23 14:27:20,406 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 121 transitions. Word has length 103 [2018-11-23 14:27:20,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:20,406 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 121 transitions. [2018-11-23 14:27:20,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:27:20,406 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 121 transitions. [2018-11-23 14:27:20,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-11-23 14:27:20,407 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:20,407 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:20,407 INFO L423 AbstractCegarLoop]: === Iteration 22 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:20,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:20,407 INFO L82 PathProgramCache]: Analyzing trace with hash 916743350, now seen corresponding path program 1 times [2018-11-23 14:27:20,407 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:20,407 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:20,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:20,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:20,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:20,504 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-11-23 14:27:20,504 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:20,505 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/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 [2018-11-23 14:27:20,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:20,545 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:20,563 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-11-23 14:27:20,578 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:27:20,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2018-11-23 14:27:20,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 14:27:20,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 14:27:20,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-11-23 14:27:20,578 INFO L87 Difference]: Start difference. First operand 117 states and 121 transitions. Second operand 12 states. [2018-11-23 14:27:20,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:20,605 INFO L93 Difference]: Finished difference Result 126 states and 130 transitions. [2018-11-23 14:27:20,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 14:27:20,606 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 103 [2018-11-23 14:27:20,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:20,606 INFO L225 Difference]: With dead ends: 126 [2018-11-23 14:27:20,606 INFO L226 Difference]: Without dead ends: 126 [2018-11-23 14:27:20,607 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-11-23 14:27:20,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-11-23 14:27:20,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2018-11-23 14:27:20,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-11-23 14:27:20,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 126 transitions. [2018-11-23 14:27:20,609 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 126 transitions. Word has length 103 [2018-11-23 14:27:20,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:20,609 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 126 transitions. [2018-11-23 14:27:20,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 14:27:20,609 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 126 transitions. [2018-11-23 14:27:20,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-11-23 14:27:20,610 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:20,610 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:20,610 INFO L423 AbstractCegarLoop]: === Iteration 23 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:20,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:20,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1877120744, now seen corresponding path program 2 times [2018-11-23 14:27:20,610 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:20,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:20,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:20,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:20,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:20,689 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-11-23 14:27:20,690 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:20,690 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:27:20,702 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 14:27:20,724 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 14:27:20,725 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 14:27:20,726 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:20,741 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-23 14:27:20,760 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:20,765 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 27 [2018-11-23 14:27:20,767 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-11-23 14:27:20,773 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2018-11-23 14:27:20,779 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-11-23 14:27:20,779 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:20,783 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:20,788 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:20,798 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:20,801 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:20,806 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33 [2018-11-23 14:27:20,808 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:20,811 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:20,816 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 39 [2018-11-23 14:27:20,818 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:20,822 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:20,827 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 42 [2018-11-23 14:27:20,827 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-11-23 14:27:20,859 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 40 [2018-11-23 14:27:20,859 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:20,882 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:27:20,909 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2018-11-23 14:27:20,914 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2018-11-23 14:27:20,914 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:20,920 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:20,943 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 14:27:20,969 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 14:27:20,998 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 14:27:21,024 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 10 dim-0 vars, and 3 xjuncts. [2018-11-23 14:27:21,024 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 5 variables, input treesize:22, output treesize:78 [2018-11-23 14:27:21,071 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2018-11-23 14:27:21,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:27:21,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 15 [2018-11-23 14:27:21,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-23 14:27:21,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-23 14:27:21,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2018-11-23 14:27:21,086 INFO L87 Difference]: Start difference. First operand 122 states and 126 transitions. Second operand 15 states. [2018-11-23 14:27:21,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:21,236 INFO L93 Difference]: Finished difference Result 126 states and 130 transitions. [2018-11-23 14:27:21,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 14:27:21,236 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 108 [2018-11-23 14:27:21,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:21,237 INFO L225 Difference]: With dead ends: 126 [2018-11-23 14:27:21,237 INFO L226 Difference]: Without dead ends: 126 [2018-11-23 14:27:21,237 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=205, Invalid=395, Unknown=0, NotChecked=0, Total=600 [2018-11-23 14:27:21,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-11-23 14:27:21,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-11-23 14:27:21,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-11-23 14:27:21,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 130 transitions. [2018-11-23 14:27:21,239 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 130 transitions. Word has length 108 [2018-11-23 14:27:21,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:21,239 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 130 transitions. [2018-11-23 14:27:21,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-23 14:27:21,239 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 130 transitions. [2018-11-23 14:27:21,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-11-23 14:27:21,240 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:21,240 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:21,240 INFO L423 AbstractCegarLoop]: === Iteration 24 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:21,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:21,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1737944524, now seen corresponding path program 1 times [2018-11-23 14:27:21,240 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:21,240 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:21,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:21,241 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:27:21,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:21,306 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2018-11-23 14:27:21,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:27:21,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 14:27:21,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 14:27:21,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 14:27:21,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-23 14:27:21,307 INFO L87 Difference]: Start difference. First operand 126 states and 130 transitions. Second operand 6 states. [2018-11-23 14:27:21,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:21,370 INFO L93 Difference]: Finished difference Result 125 states and 129 transitions. [2018-11-23 14:27:21,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 14:27:21,370 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2018-11-23 14:27:21,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:21,371 INFO L225 Difference]: With dead ends: 125 [2018-11-23 14:27:21,371 INFO L226 Difference]: Without dead ends: 125 [2018-11-23 14:27:21,371 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:27:21,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-11-23 14:27:21,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-11-23 14:27:21,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-11-23 14:27:21,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 129 transitions. [2018-11-23 14:27:21,374 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 129 transitions. Word has length 122 [2018-11-23 14:27:21,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:21,374 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 129 transitions. [2018-11-23 14:27:21,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 14:27:21,374 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 129 transitions. [2018-11-23 14:27:21,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-11-23 14:27:21,375 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:21,375 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:21,375 INFO L423 AbstractCegarLoop]: === Iteration 25 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:21,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:21,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1737944523, now seen corresponding path program 1 times [2018-11-23 14:27:21,375 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:21,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:21,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:21,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:21,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:21,414 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2018-11-23 14:27:21,414 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:21,414 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/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 [2018-11-23 14:27:21,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:21,474 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:21,481 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2018-11-23 14:27:21,495 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:27:21,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-11-23 14:27:21,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 14:27:21,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 14:27:21,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-23 14:27:21,496 INFO L87 Difference]: Start difference. First operand 125 states and 129 transitions. Second operand 5 states. [2018-11-23 14:27:21,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:21,512 INFO L93 Difference]: Finished difference Result 134 states and 138 transitions. [2018-11-23 14:27:21,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 14:27:21,513 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2018-11-23 14:27:21,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:21,513 INFO L225 Difference]: With dead ends: 134 [2018-11-23 14:27:21,513 INFO L226 Difference]: Without dead ends: 134 [2018-11-23 14:27:21,513 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-23 14:27:21,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-11-23 14:27:21,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 130. [2018-11-23 14:27:21,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-11-23 14:27:21,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 134 transitions. [2018-11-23 14:27:21,515 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 134 transitions. Word has length 122 [2018-11-23 14:27:21,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:21,515 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 134 transitions. [2018-11-23 14:27:21,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 14:27:21,515 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 134 transitions. [2018-11-23 14:27:21,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-11-23 14:27:21,516 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:27:21,516 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:27:21,516 INFO L423 AbstractCegarLoop]: === Iteration 26 === [getNumbers3Err3REQUIRES_VIOLATION, getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-23 14:27:21,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:27:21,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1533212021, now seen corresponding path program 2 times [2018-11-23 14:27:21,516 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:27:21,516 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:27:21,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:21,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:27:21,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:27:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:27:21,552 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2018-11-23 14:27:21,552 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:27:21,552 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:27:21,574 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 14:27:21,598 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 14:27:21,598 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 14:27:21,600 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:27:21,613 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-23 14:27:21,615 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:21,620 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 27 [2018-11-23 14:27:21,622 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:21,630 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:21,635 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33 [2018-11-23 14:27:21,637 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:21,640 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:21,645 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 39 [2018-11-23 14:27:21,647 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:21,652 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:27:21,657 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 42 [2018-11-23 14:27:21,657 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-11-23 14:27:21,692 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 40 [2018-11-23 14:27:21,692 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:21,720 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:27:21,748 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2018-11-23 14:27:21,753 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2018-11-23 14:27:21,754 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:21,761 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:21,787 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 14:27:21,818 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-11-23 14:27:21,821 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2018-11-23 14:27:21,824 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-11-23 14:27:21,825 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 14:27:21,828 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:21,833 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:27:21,858 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 14:27:21,882 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 14:27:21,908 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 10 dim-0 vars, and 3 xjuncts. [2018-11-23 14:27:21,909 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 5 variables, input treesize:22, output treesize:78 [2018-11-23 14:27:21,985 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2018-11-23 14:27:22,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:27:22,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2018-11-23 14:27:22,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 14:27:22,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 14:27:22,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-23 14:27:22,001 INFO L87 Difference]: Start difference. First operand 130 states and 134 transitions. Second operand 10 states. [2018-11-23 14:27:22,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:27:22,114 INFO L93 Difference]: Finished difference Result 139 states and 143 transitions. [2018-11-23 14:27:22,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 14:27:22,115 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 127 [2018-11-23 14:27:22,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:27:22,115 INFO L225 Difference]: With dead ends: 139 [2018-11-23 14:27:22,115 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 14:27:22,115 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-11-23 14:27:22,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 14:27:22,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 14:27:22,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 14:27:22,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 14:27:22,116 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 127 [2018-11-23 14:27:22,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:27:22,116 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:27:22,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 14:27:22,116 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 14:27:22,116 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 14:27:22,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:27:22 BoogieIcfgContainer [2018-11-23 14:27:22,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 14:27:22,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:27:22,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:27:22,120 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:27:22,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:27:08" (3/4) ... [2018-11-23 14:27:22,124 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 14:27:22,129 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 14:27:22,129 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers3 [2018-11-23 14:27:22,129 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers2 [2018-11-23 14:27:22,129 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers4 [2018-11-23 14:27:22,129 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 14:27:22,129 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-11-23 14:27:22,133 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2018-11-23 14:27:22,134 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-23 14:27:22,134 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 14:27:22,134 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-23 14:27:22,134 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 14:27:22,163 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_553a5258-7656-44f8-9468-b8fc51cab064/bin-2019/uautomizer/witness.graphml [2018-11-23 14:27:22,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:27:22,164 INFO L168 Benchmark]: Toolchain (without parser) took 13872.01 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 453.0 MB). Free memory was 959.1 MB in the beginning and 837.6 MB in the end (delta: 121.6 MB). Peak memory consumption was 574.6 MB. Max. memory is 11.5 GB. [2018-11-23 14:27:22,165 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:27:22,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.29 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:27:22,165 INFO L168 Benchmark]: Boogie Preprocessor took 68.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -192.8 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:27:22,165 INFO L168 Benchmark]: RCFGBuilder took 301.69 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-11-23 14:27:22,166 INFO L168 Benchmark]: TraceAbstraction took 13273.30 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 309.3 MB). Free memory was 1.1 GB in the beginning and 837.6 MB in the end (delta: 273.2 MB). Peak memory consumption was 582.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:27:22,166 INFO L168 Benchmark]: Witness Printer took 43.27 ms. Allocated memory is still 1.5 GB. Free memory is still 837.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:27:22,167 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 182.29 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -192.8 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 301.69 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13273.30 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 309.3 MB). Free memory was 1.1 GB in the beginning and 837.6 MB in the end (delta: 273.2 MB). Peak memory consumption was 582.5 MB. Max. memory is 11.5 GB. * Witness Printer took 43.27 ms. Allocated memory is still 1.5 GB. Free memory is still 837.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 28]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 28]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 28]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 28]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 38]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 38]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 38]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 38]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 47]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 47]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 43]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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 17 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 70 locations, 17 error locations. SAFE Result, 13.2s OverallTime, 26 OverallIterations, 10 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1253 SDtfs, 1150 SDslu, 4439 SDs, 0 SdLazy, 2079 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1495 GetRequests, 1244 SyntacticMatches, 0 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=25, 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, 26 MinimizatonAttempts, 49 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 2945 NumberOfCodeBlocks, 2511 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 2900 ConstructedInterpolants, 406 QuantifiedInterpolants, 1831911 SizeOfPredicates, 57 NumberOfNonLiveVariables, 5498 ConjunctsInSsa, 195 ConjunctsInUnsatCore, 45 InterpolantComputations, 16 PerfectInterpolantSequences, 5725/7285 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...