./Ultimate.py --spec ../../sv-benchmarks/c/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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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_b24058fa-131d-463f-8d24-7f3e6aa4203b/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 0.1.23-5842f4b [2018-11-18 08:51:42,093 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:51:42,094 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:51:42,101 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:51:42,101 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:51:42,102 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:51:42,103 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:51:42,104 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:51:42,105 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:51:42,105 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:51:42,106 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:51:42,106 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:51:42,107 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:51:42,107 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:51:42,108 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:51:42,109 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:51:42,109 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:51:42,111 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:51:42,112 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:51:42,113 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:51:42,114 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:51:42,114 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:51:42,116 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:51:42,116 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:51:42,116 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:51:42,117 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:51:42,118 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:51:42,118 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:51:42,119 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:51:42,119 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:51:42,120 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:51:42,120 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:51:42,120 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:51:42,121 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:51:42,121 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:51:42,122 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:51:42,122 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-18 08:51:42,132 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:51:42,132 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:51:42,133 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:51:42,133 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:51:42,133 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:51:42,133 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:51:42,134 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:51:42,134 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 08:51:42,134 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:51:42,134 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:51:42,134 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:51:42,134 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 08:51:42,134 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 08:51:42,134 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 08:51:42,135 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 08:51:42,135 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:51:42,135 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:51:42,135 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:51:42,135 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:51:42,135 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 08:51:42,135 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 08:51:42,135 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 08:51:42,136 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:51:42,136 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 08:51:42,136 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 08:51:42,136 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 08:51:42,136 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_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:42,161 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:51:42,170 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:51:42,173 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:51:42,174 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:51:42,174 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:51:42,175 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext3/getNumbers4_true-valid-memsafety.c [2018-11-18 08:51:42,216 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/bin-2019/uautomizer/data/37e2366bf/fc28fb05f5b8474682a6126a4a935e34/FLAGb0abdb327 [2018-11-18 08:51:42,628 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:51:42,628 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/sv-benchmarks/c/memsafety-ext3/getNumbers4_true-valid-memsafety.c [2018-11-18 08:51:42,633 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/bin-2019/uautomizer/data/37e2366bf/fc28fb05f5b8474682a6126a4a935e34/FLAGb0abdb327 [2018-11-18 08:51:42,644 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/bin-2019/uautomizer/data/37e2366bf/fc28fb05f5b8474682a6126a4a935e34 [2018-11-18 08:51:42,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:51:42,647 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 08:51:42,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:51:42,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:51:42,650 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:51:42,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:51:42" (1/1) ... [2018-11-18 08:51:42,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788382f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:42, skipping insertion in model container [2018-11-18 08:51:42,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:51:42" (1/1) ... [2018-11-18 08:51:42,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:51:42,672 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:51:42,789 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:51:42,798 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:51:42,810 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:51:42,820 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:51:42,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:42 WrapperNode [2018-11-18 08:51:42,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:51:42,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:51:42,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:51:42,821 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:51:42,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:42" (1/1) ... [2018-11-18 08:51:42,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:42" (1/1) ... [2018-11-18 08:51:42,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:42" (1/1) ... [2018-11-18 08:51:42,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:42" (1/1) ... [2018-11-18 08:51:42,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:42" (1/1) ... [2018-11-18 08:51:42,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:42" (1/1) ... [2018-11-18 08:51:42,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:42" (1/1) ... [2018-11-18 08:51:42,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:51:42,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:51:42,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:51:42,884 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:51:42,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:42,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 08:51:42,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:51:42,918 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-18 08:51:42,918 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers2 [2018-11-18 08:51:42,918 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers3 [2018-11-18 08:51:42,918 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers4 [2018-11-18 08:51:42,918 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 08:51:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2018-11-18 08:51:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-18 08:51:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 08:51:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers2 [2018-11-18 08:51:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 08:51:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers3 [2018-11-18 08:51:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers4 [2018-11-18 08:51:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 08:51:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 08:51:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 08:51:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:51:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 08:51:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 08:51:43,168 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:51:43,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:51:43 BoogieIcfgContainer [2018-11-18 08:51:43,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:51:43,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 08:51:43,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 08:51:43,172 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 08:51:43,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:51:42" (1/3) ... [2018-11-18 08:51:43,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a3e541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:51:43, skipping insertion in model container [2018-11-18 08:51:43,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:42" (2/3) ... [2018-11-18 08:51:43,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a3e541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:51:43, skipping insertion in model container [2018-11-18 08:51:43,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:51:43" (3/3) ... [2018-11-18 08:51:43,175 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers4_true-valid-memsafety.c [2018-11-18 08:51:43,180 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 08:51:43,185 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-11-18 08:51:43,197 INFO L257 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2018-11-18 08:51:43,218 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:51:43,218 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 08:51:43,219 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 08:51:43,219 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 08:51:43,219 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:51:43,219 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:51:43,219 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 08:51:43,219 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:51:43,219 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 08:51:43,233 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-11-18 08:51:43,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 08:51:43,239 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:43,239 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:51:43,241 INFO L423 AbstractCegarLoop]: === Iteration 1 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:43,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:43,245 INFO L82 PathProgramCache]: Analyzing trace with hash -520194102, now seen corresponding path program 1 times [2018-11-18 08:51:43,246 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:43,246 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:43,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:43,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:43,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:43,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:51:43,394 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:51:43,394 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 08:51:43,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 08:51:43,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:51:43,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:51:43,406 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 3 states. [2018-11-18 08:51:43,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:43,455 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2018-11-18 08:51:43,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:51:43,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-18 08:51:43,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:43,465 INFO L225 Difference]: With dead ends: 73 [2018-11-18 08:51:43,466 INFO L226 Difference]: Without dead ends: 68 [2018-11-18 08:51:43,467 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:51:43,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-11-18 08:51:43,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-11-18 08:51:43,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-18 08:51:43,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2018-11-18 08:51:43,497 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 13 [2018-11-18 08:51:43,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:43,498 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2018-11-18 08:51:43,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 08:51:43,498 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2018-11-18 08:51:43,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 08:51:43,498 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:43,498 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:51:43,499 INFO L423 AbstractCegarLoop]: === Iteration 2 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:43,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:43,499 INFO L82 PathProgramCache]: Analyzing trace with hash -520194101, now seen corresponding path program 1 times [2018-11-18 08:51:43,499 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:43,499 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:43,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:43,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:43,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:51:43,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:51:43,586 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:51:43,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 08:51:43,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 08:51:43,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 08:51:43,587 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 4 states. [2018-11-18 08:51:43,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:43,636 INFO L93 Difference]: Finished difference Result 72 states and 76 transitions. [2018-11-18 08:51:43,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 08:51:43,637 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-11-18 08:51:43,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:43,638 INFO L225 Difference]: With dead ends: 72 [2018-11-18 08:51:43,638 INFO L226 Difference]: Without dead ends: 72 [2018-11-18 08:51:43,639 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 08:51:43,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-18 08:51:43,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2018-11-18 08:51:43,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-18 08:51:43,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2018-11-18 08:51:43,643 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 13 [2018-11-18 08:51:43,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:43,644 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2018-11-18 08:51:43,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 08:51:43,644 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2018-11-18 08:51:43,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 08:51:43,644 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:43,644 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:51:43,644 INFO L423 AbstractCegarLoop]: === Iteration 3 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:43,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:43,645 INFO L82 PathProgramCache]: Analyzing trace with hash -902677918, now seen corresponding path program 1 times [2018-11-18 08:51:43,645 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:43,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:43,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:43,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:43,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:43,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:51:43,738 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:43,738 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:43,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:43,775 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:43,810 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2018-11-18 08:51:43,823 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:43,845 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 48 [2018-11-18 08:51:43,884 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:43,885 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:43,886 INFO L477 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 [2018-11-18 08:51:43,924 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:43,925 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:43,926 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:43,928 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:43,929 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:43,930 INFO L477 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 [2018-11-18 08:51:43,957 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:43,958 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:43,959 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:43,960 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:43,960 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:43,962 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:43,963 INFO L477 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 [2018-11-18 08:51:43,963 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:43,976 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:43,994 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:44,023 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,024 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,029 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,035 INFO L477 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 [2018-11-18 08:51:44,117 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,118 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,119 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,119 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,120 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,123 INFO L477 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 [2018-11-18 08:51:44,176 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,177 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,178 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,181 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,182 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,183 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,183 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,184 INFO L477 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 [2018-11-18 08:51:44,185 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:44,210 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:44,235 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,236 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,238 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,239 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,240 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,242 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,243 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,249 INFO L477 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 [2018-11-18 08:51:44,324 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,325 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,326 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,327 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,328 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,328 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,330 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,331 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,332 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,332 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,333 INFO L477 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 [2018-11-18 08:51:44,334 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:44,364 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,365 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,366 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,367 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,368 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,368 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,370 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,371 INFO L477 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 [2018-11-18 08:51:44,371 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:44,405 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:51:44,427 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:44,446 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:44,456 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:44,473 INFO L477 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 [2018-11-18 08:51:44,486 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,497 INFO L477 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 [2018-11-18 08:51:44,500 INFO L477 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 [2018-11-18 08:51:44,503 INFO L477 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 [2018-11-18 08:51:44,506 INFO L477 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 [2018-11-18 08:51:44,506 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:44,515 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:44,533 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:44,544 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,545 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:44,546 INFO L477 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 [2018-11-18 08:51:44,549 INFO L477 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 [2018-11-18 08:51:44,553 INFO L477 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 [2018-11-18 08:51:44,554 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:44,571 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:44,578 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:44,589 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:51:44,601 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:51:44,621 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. [2018-11-18 08:51:44,621 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 6 variables, input treesize:73, output treesize:102 [2018-11-18 08:51:44,717 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:51:44,733 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:51:44,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-11-18 08:51:44,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 08:51:44,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 08:51:44,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 08:51:44,734 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 8 states. [2018-11-18 08:51:44,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:44,842 INFO L93 Difference]: Finished difference Result 76 states and 80 transitions. [2018-11-18 08:51:44,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 08:51:44,842 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-11-18 08:51:44,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:44,843 INFO L225 Difference]: With dead ends: 76 [2018-11-18 08:51:44,843 INFO L226 Difference]: Without dead ends: 76 [2018-11-18 08:51:44,844 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 08:51:44,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-11-18 08:51:44,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2018-11-18 08:51:44,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-11-18 08:51:44,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2018-11-18 08:51:44,849 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 79 transitions. Word has length 17 [2018-11-18 08:51:44,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:44,849 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 79 transitions. [2018-11-18 08:51:44,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 08:51:44,849 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 79 transitions. [2018-11-18 08:51:44,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 08:51:44,851 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:44,851 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:51:44,854 INFO L423 AbstractCegarLoop]: === Iteration 4 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:44,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:44,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1744512647, now seen corresponding path program 2 times [2018-11-18 08:51:44,854 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:44,855 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:44,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:44,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:44,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:44,992 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:51:44,992 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:44,992 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:44,999 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 08:51:45,018 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 08:51:45,018 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 08:51:45,020 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:45,026 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2018-11-18 08:51:45,029 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,034 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 48 [2018-11-18 08:51:45,052 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,053 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,056 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,061 INFO L477 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 [2018-11-18 08:51:45,108 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,109 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,112 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,114 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,115 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,117 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,119 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,125 INFO L477 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 [2018-11-18 08:51:45,193 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,194 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,195 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,196 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,198 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,199 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,201 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,202 INFO L477 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 [2018-11-18 08:51:45,203 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,243 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,244 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,244 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,247 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,247 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,248 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,251 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,252 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,253 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,254 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,255 INFO L477 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 [2018-11-18 08:51:45,255 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,280 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,309 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,310 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,311 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,313 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,314 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,315 INFO L477 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 [2018-11-18 08:51:45,336 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,336 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,337 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,338 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,339 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,340 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,341 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,342 INFO L477 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 [2018-11-18 08:51:45,342 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,354 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,376 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,397 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,398 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,399 INFO L477 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 [2018-11-18 08:51:45,416 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,416 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,417 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,419 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,420 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,420 INFO L477 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 [2018-11-18 08:51:45,439 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,439 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,440 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,441 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,442 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,443 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,444 INFO L477 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 [2018-11-18 08:51:45,444 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,453 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,462 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,480 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,489 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,501 INFO L477 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 [2018-11-18 08:51:45,505 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,514 INFO L477 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 [2018-11-18 08:51:45,516 INFO L477 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 [2018-11-18 08:51:45,519 INFO L477 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 [2018-11-18 08:51:45,523 INFO L477 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 [2018-11-18 08:51:45,524 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,533 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,539 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,552 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,553 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:45,553 INFO L477 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 [2018-11-18 08:51:45,557 INFO L477 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 [2018-11-18 08:51:45,562 INFO L477 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 [2018-11-18 08:51:45,563 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,575 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,587 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:45,598 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:51:45,609 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:51:45,629 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. [2018-11-18 08:51:45,629 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 6 variables, input treesize:73, output treesize:102 [2018-11-18 08:51:45,727 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:51:45,744 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:51:45,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2018-11-18 08:51:45,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 08:51:45,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 08:51:45,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-11-18 08:51:45,745 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. Second operand 11 states. [2018-11-18 08:51:45,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:45,896 INFO L93 Difference]: Finished difference Result 80 states and 84 transitions. [2018-11-18 08:51:45,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 08:51:45,897 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2018-11-18 08:51:45,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:45,897 INFO L225 Difference]: With dead ends: 80 [2018-11-18 08:51:45,897 INFO L226 Difference]: Without dead ends: 80 [2018-11-18 08:51:45,898 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-11-18 08:51:45,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-11-18 08:51:45,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2018-11-18 08:51:45,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-11-18 08:51:45,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2018-11-18 08:51:45,904 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 21 [2018-11-18 08:51:45,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:45,904 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2018-11-18 08:51:45,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 08:51:45,904 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2018-11-18 08:51:45,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 08:51:45,905 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:45,905 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:51:45,905 INFO L423 AbstractCegarLoop]: === Iteration 5 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:45,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:45,906 INFO L82 PathProgramCache]: Analyzing trace with hash -290188016, now seen corresponding path program 3 times [2018-11-18 08:51:45,906 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:45,906 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:45,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:45,907 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:51:45,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:46,030 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:51:46,031 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:46,031 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:46,043 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 08:51:46,063 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-18 08:51:46,063 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 08:51:46,065 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:46,070 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-18 08:51:46,073 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,077 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 27 [2018-11-18 08:51:46,079 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,080 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,081 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,081 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,082 INFO L477 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 23 treesize of output 45 [2018-11-18 08:51:46,084 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,085 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,086 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,086 INFO L477 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 0 case distinctions, treesize of input 33 treesize of output 59 [2018-11-18 08:51:46,089 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,089 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,090 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,091 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,091 INFO L477 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 [2018-11-18 08:51:46,092 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,106 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,113 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,125 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,126 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 27 [2018-11-18 08:51:46,128 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,129 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,129 INFO L477 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 34 [2018-11-18 08:51:46,132 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,132 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,133 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,133 INFO L477 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 [2018-11-18 08:51:46,134 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,151 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,158 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,172 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:51:46,184 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:51:46,203 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2018-11-18 08:51:46,206 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,210 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 48 [2018-11-18 08:51:46,225 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,226 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,228 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,232 INFO L477 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 [2018-11-18 08:51:46,272 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,272 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,273 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,273 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,274 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,274 INFO L477 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 [2018-11-18 08:51:46,297 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,298 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,298 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,299 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,299 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,300 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,300 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,301 INFO L477 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 [2018-11-18 08:51:46,301 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,312 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,334 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,334 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,335 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,337 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,337 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,338 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,339 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,344 INFO L477 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 [2018-11-18 08:51:46,417 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,417 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,418 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,419 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,420 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,420 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,422 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,422 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,423 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,423 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,424 INFO L477 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 [2018-11-18 08:51:46,425 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,447 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,448 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,448 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,449 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,449 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,450 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,451 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,452 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,452 INFO L477 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 37 treesize of output 48 [2018-11-18 08:51:46,453 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,467 INFO L267 ElimStorePlain]: Start of recursive call 15: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,480 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,495 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,496 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,497 INFO L477 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 [2018-11-18 08:51:46,512 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,513 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,513 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,514 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,515 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,515 INFO L477 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 [2018-11-18 08:51:46,534 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,535 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,535 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,536 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,536 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,538 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:46,538 INFO L477 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 [2018-11-18 08:51:46,539 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,546 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,551 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,561 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,566 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:46,584 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. [2018-11-18 08:51:46,584 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 6 variables, input treesize:73, output treesize:102 [2018-11-18 08:51:46,700 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 08:51:46,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 08:51:46,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2018-11-18 08:51:46,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 08:51:46,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 08:51:46,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-11-18 08:51:46,717 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 12 states. [2018-11-18 08:51:46,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:46,979 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2018-11-18 08:51:46,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 08:51:46,980 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 25 [2018-11-18 08:51:46,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:46,980 INFO L225 Difference]: With dead ends: 85 [2018-11-18 08:51:46,980 INFO L226 Difference]: Without dead ends: 85 [2018-11-18 08:51:46,981 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2018-11-18 08:51:46,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-11-18 08:51:46,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-11-18 08:51:46,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-11-18 08:51:46,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2018-11-18 08:51:46,984 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 25 [2018-11-18 08:51:46,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:46,984 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2018-11-18 08:51:46,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 08:51:46,984 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2018-11-18 08:51:46,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-18 08:51:46,985 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:46,985 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:51:46,985 INFO L423 AbstractCegarLoop]: === Iteration 6 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:46,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:46,985 INFO L82 PathProgramCache]: Analyzing trace with hash 678466420, now seen corresponding path program 1 times [2018-11-18 08:51:46,985 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:46,985 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:46,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:46,986 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:51:46,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:47,052 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-11-18 08:51:47,053 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:51:47,053 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 08:51:47,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 08:51:47,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 08:51:47,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 08:51:47,053 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 6 states. [2018-11-18 08:51:47,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:47,102 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2018-11-18 08:51:47,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 08:51:47,103 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2018-11-18 08:51:47,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:47,103 INFO L225 Difference]: With dead ends: 84 [2018-11-18 08:51:47,104 INFO L226 Difference]: Without dead ends: 84 [2018-11-18 08:51:47,104 INFO L604 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 [2018-11-18 08:51:47,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-11-18 08:51:47,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-11-18 08:51:47,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-11-18 08:51:47,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2018-11-18 08:51:47,107 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 39 [2018-11-18 08:51:47,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:47,108 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2018-11-18 08:51:47,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 08:51:47,108 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2018-11-18 08:51:47,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-18 08:51:47,108 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:47,108 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:51:47,108 INFO L423 AbstractCegarLoop]: === Iteration 7 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:47,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:47,108 INFO L82 PathProgramCache]: Analyzing trace with hash 678466421, now seen corresponding path program 1 times [2018-11-18 08:51:47,109 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:47,109 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:47,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:47,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:47,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:47,164 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:51:47,164 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:47,164 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:47,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:47,200 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:47,219 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:51:47,236 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:51:47,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-11-18 08:51:47,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 08:51:47,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 08:51:47,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-18 08:51:47,237 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand 9 states. [2018-11-18 08:51:47,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:47,258 INFO L93 Difference]: Finished difference Result 90 states and 94 transitions. [2018-11-18 08:51:47,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 08:51:47,258 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 39 [2018-11-18 08:51:47,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:47,259 INFO L225 Difference]: With dead ends: 90 [2018-11-18 08:51:47,259 INFO L226 Difference]: Without dead ends: 90 [2018-11-18 08:51:47,260 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-18 08:51:47,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-11-18 08:51:47,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2018-11-18 08:51:47,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-11-18 08:51:47,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 92 transitions. [2018-11-18 08:51:47,265 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 92 transitions. Word has length 39 [2018-11-18 08:51:47,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:47,265 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 92 transitions. [2018-11-18 08:51:47,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 08:51:47,265 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 92 transitions. [2018-11-18 08:51:47,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-18 08:51:47,267 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:47,267 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:51:47,268 INFO L423 AbstractCegarLoop]: === Iteration 8 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:47,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:47,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1701230412, now seen corresponding path program 2 times [2018-11-18 08:51:47,268 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:47,268 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:47,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:47,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:47,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:47,320 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:51:47,320 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:47,320 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:47,330 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 08:51:47,347 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 08:51:47,347 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 08:51:47,350 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:47,367 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-18 08:51:47,393 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,411 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 27 [2018-11-18 08:51:47,419 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,420 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,422 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,423 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,424 INFO L477 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 23 treesize of output 45 [2018-11-18 08:51:47,431 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,432 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,434 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,435 INFO L477 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 0 case distinctions, treesize of input 33 treesize of output 59 [2018-11-18 08:51:47,439 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,440 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,442 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,443 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,445 INFO L477 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 [2018-11-18 08:51:47,446 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,463 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,471 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,485 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,486 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 27 [2018-11-18 08:51:47,491 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,491 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,492 INFO L477 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 34 [2018-11-18 08:51:47,495 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,496 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,497 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,497 INFO L477 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 [2018-11-18 08:51:47,498 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,508 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,515 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,529 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:51:47,543 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:51:47,568 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2018-11-18 08:51:47,571 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,576 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 48 [2018-11-18 08:51:47,610 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,612 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,613 INFO L477 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 [2018-11-18 08:51:47,632 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,646 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,647 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,649 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,650 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,651 INFO L477 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 [2018-11-18 08:51:47,682 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,683 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,684 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,685 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,685 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,687 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,687 INFO L477 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 [2018-11-18 08:51:47,688 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,697 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,704 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,722 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,723 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,725 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,729 INFO L477 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 [2018-11-18 08:51:47,768 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,768 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,769 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,770 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,770 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,771 INFO L477 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 [2018-11-18 08:51:47,793 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,794 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,795 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,796 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,797 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,798 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,798 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,799 INFO L477 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 [2018-11-18 08:51:47,799 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,812 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,829 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,829 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,830 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,831 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,832 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,833 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,834 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,839 INFO L477 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 [2018-11-18 08:51:47,889 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,890 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,894 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,895 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,895 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,896 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,897 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,898 INFO L477 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 [2018-11-18 08:51:47,899 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,922 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,922 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,923 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,924 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,925 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,925 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,926 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,927 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,928 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,928 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,929 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:47,929 INFO L477 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 39 treesize of output 49 [2018-11-18 08:51:47,930 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,950 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,963 INFO L267 ElimStorePlain]: Start of recursive call 15: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,974 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,979 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:47,996 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. [2018-11-18 08:51:47,997 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 6 variables, input treesize:73, output treesize:102 [2018-11-18 08:51:48,124 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-18 08:51:48,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 08:51:48,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2018-11-18 08:51:48,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 08:51:48,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 08:51:48,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2018-11-18 08:51:48,141 INFO L87 Difference]: Start difference. First operand 88 states and 92 transitions. Second operand 14 states. [2018-11-18 08:51:48,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:48,438 INFO L93 Difference]: Finished difference Result 95 states and 99 transitions. [2018-11-18 08:51:48,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 08:51:48,438 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2018-11-18 08:51:48,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:48,439 INFO L225 Difference]: With dead ends: 95 [2018-11-18 08:51:48,439 INFO L226 Difference]: Without dead ends: 95 [2018-11-18 08:51:48,439 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2018-11-18 08:51:48,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-11-18 08:51:48,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2018-11-18 08:51:48,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-11-18 08:51:48,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 97 transitions. [2018-11-18 08:51:48,442 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 97 transitions. Word has length 43 [2018-11-18 08:51:48,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:48,442 INFO L480 AbstractCegarLoop]: Abstraction has 93 states and 97 transitions. [2018-11-18 08:51:48,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 08:51:48,442 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 97 transitions. [2018-11-18 08:51:48,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 08:51:48,443 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:48,443 INFO L375 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:51:48,443 INFO L423 AbstractCegarLoop]: === Iteration 9 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:48,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:48,444 INFO L82 PathProgramCache]: Analyzing trace with hash -591799079, now seen corresponding path program 1 times [2018-11-18 08:51:48,444 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:48,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:48,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:48,445 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:51:48,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:48,510 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:51:48,510 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:48,510 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:48,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:48,542 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:48,551 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:51:48,567 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:51:48,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2018-11-18 08:51:48,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 08:51:48,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 08:51:48,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-18 08:51:48,568 INFO L87 Difference]: Start difference. First operand 93 states and 97 transitions. Second operand 11 states. [2018-11-18 08:51:48,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:48,589 INFO L93 Difference]: Finished difference Result 99 states and 103 transitions. [2018-11-18 08:51:48,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 08:51:48,589 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2018-11-18 08:51:48,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:48,590 INFO L225 Difference]: With dead ends: 99 [2018-11-18 08:51:48,590 INFO L226 Difference]: Without dead ends: 99 [2018-11-18 08:51:48,590 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-18 08:51:48,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-11-18 08:51:48,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2018-11-18 08:51:48,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-11-18 08:51:48,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 101 transitions. [2018-11-18 08:51:48,593 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 101 transitions. Word has length 48 [2018-11-18 08:51:48,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:48,594 INFO L480 AbstractCegarLoop]: Abstraction has 97 states and 101 transitions. [2018-11-18 08:51:48,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 08:51:48,594 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 101 transitions. [2018-11-18 08:51:48,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-18 08:51:48,597 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:48,597 INFO L375 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:51:48,597 INFO L423 AbstractCegarLoop]: === Iteration 10 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:48,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:48,597 INFO L82 PathProgramCache]: Analyzing trace with hash 145300194, now seen corresponding path program 2 times [2018-11-18 08:51:48,598 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:48,598 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:48,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:48,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:48,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:48,649 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:51:48,650 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:48,650 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:48,656 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 08:51:48,668 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 08:51:48,668 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 08:51:48,670 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:48,674 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 55 [2018-11-18 08:51:48,678 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,683 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 55 [2018-11-18 08:51:48,686 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2018-11-18 08:51:48,697 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,698 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,702 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,702 INFO L477 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 [2018-11-18 08:51:48,723 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,723 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,724 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,725 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,725 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,728 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,729 INFO L477 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 [2018-11-18 08:51:48,733 INFO L477 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 [2018-11-18 08:51:48,733 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:48,745 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:48,754 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:48,766 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:48,790 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,792 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,798 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 55 [2018-11-18 08:51:48,845 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,846 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,847 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,849 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,850 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,857 INFO L477 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 [2018-11-18 08:51:48,933 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,935 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,936 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,937 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,938 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,939 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,941 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,941 INFO L477 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 [2018-11-18 08:51:48,945 INFO L477 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 [2018-11-18 08:51:48,945 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:48,964 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:48,994 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,995 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,996 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:48,997 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,002 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,003 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,006 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,007 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,008 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,016 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,030 INFO L477 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 [2018-11-18 08:51:49,038 INFO L477 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 [2018-11-18 08:51:49,038 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:49,110 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,111 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,112 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,113 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,114 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,117 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,119 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,120 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,121 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,127 INFO L477 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 [2018-11-18 08:51:49,128 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-11-18 08:51:49,219 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 08:51:49,279 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 08:51:49,361 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,362 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,364 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,365 INFO L477 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 [2018-11-18 08:51:49,406 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,407 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,408 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,409 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,410 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,411 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,413 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:49,414 INFO L477 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 [2018-11-18 08:51:49,418 INFO L477 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 [2018-11-18 08:51:49,418 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:49,432 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:49,447 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:49,522 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-18 08:51:49,606 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-18 08:51:49,682 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-18 08:51:49,759 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. [2018-11-18 08:51:49,760 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 5 variables, input treesize:59, output treesize:333 [2018-11-18 08:51:49,958 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2018-11-18 08:51:49,974 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 08:51:49,974 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 12 [2018-11-18 08:51:49,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 08:51:49,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 08:51:49,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2018-11-18 08:51:49,975 INFO L87 Difference]: Start difference. First operand 97 states and 101 transitions. Second operand 12 states. [2018-11-18 08:51:50,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:50,254 INFO L93 Difference]: Finished difference Result 102 states and 106 transitions. [2018-11-18 08:51:50,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 08:51:50,255 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 52 [2018-11-18 08:51:50,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:50,256 INFO L225 Difference]: With dead ends: 102 [2018-11-18 08:51:50,256 INFO L226 Difference]: Without dead ends: 102 [2018-11-18 08:51:50,257 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=255, Unknown=0, NotChecked=0, Total=420 [2018-11-18 08:51:50,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-11-18 08:51:50,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2018-11-18 08:51:50,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-11-18 08:51:50,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 104 transitions. [2018-11-18 08:51:50,259 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 104 transitions. Word has length 52 [2018-11-18 08:51:50,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:50,259 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 104 transitions. [2018-11-18 08:51:50,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 08:51:50,260 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 104 transitions. [2018-11-18 08:51:50,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 08:51:50,260 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:50,260 INFO L375 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:51:50,261 INFO L423 AbstractCegarLoop]: === Iteration 11 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:50,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:50,261 INFO L82 PathProgramCache]: Analyzing trace with hash 256388204, now seen corresponding path program 1 times [2018-11-18 08:51:50,261 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:50,261 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:50,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:50,262 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:51:50,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:50,315 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:51:50,315 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:50,315 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:50,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:50,341 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:50,363 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:51:50,379 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:51:50,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2018-11-18 08:51:50,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 08:51:50,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 08:51:50,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-11-18 08:51:50,380 INFO L87 Difference]: Start difference. First operand 100 states and 104 transitions. Second operand 13 states. [2018-11-18 08:51:50,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:50,419 INFO L93 Difference]: Finished difference Result 104 states and 108 transitions. [2018-11-18 08:51:50,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 08:51:50,420 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 56 [2018-11-18 08:51:50,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:50,421 INFO L225 Difference]: With dead ends: 104 [2018-11-18 08:51:50,421 INFO L226 Difference]: Without dead ends: 104 [2018-11-18 08:51:50,421 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-11-18 08:51:50,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-18 08:51:50,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-11-18 08:51:50,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-11-18 08:51:50,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 108 transitions. [2018-11-18 08:51:50,428 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 108 transitions. Word has length 56 [2018-11-18 08:51:50,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:50,429 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 108 transitions. [2018-11-18 08:51:50,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 08:51:50,429 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 108 transitions. [2018-11-18 08:51:50,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-11-18 08:51:50,430 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:50,430 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:51:50,430 INFO L423 AbstractCegarLoop]: === Iteration 12 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:50,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:50,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1518251659, now seen corresponding path program 2 times [2018-11-18 08:51:50,430 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:50,430 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:50,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:50,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:50,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:50,543 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 08:51:50,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:51:50,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 08:51:50,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 08:51:50,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 08:51:50,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-18 08:51:50,544 INFO L87 Difference]: Start difference. First operand 104 states and 108 transitions. Second operand 8 states. [2018-11-18 08:51:50,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:50,653 INFO L93 Difference]: Finished difference Result 104 states and 108 transitions. [2018-11-18 08:51:50,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 08:51:50,653 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 60 [2018-11-18 08:51:50,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:50,654 INFO L225 Difference]: With dead ends: 104 [2018-11-18 08:51:50,654 INFO L226 Difference]: Without dead ends: 104 [2018-11-18 08:51:50,654 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-11-18 08:51:50,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-18 08:51:50,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2018-11-18 08:51:50,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-11-18 08:51:50,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 107 transitions. [2018-11-18 08:51:50,657 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 107 transitions. Word has length 60 [2018-11-18 08:51:50,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:50,657 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 107 transitions. [2018-11-18 08:51:50,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 08:51:50,657 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 107 transitions. [2018-11-18 08:51:50,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-11-18 08:51:50,658 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:50,658 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 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] [2018-11-18 08:51:50,659 INFO L423 AbstractCegarLoop]: === Iteration 13 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:50,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:50,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1656853965, now seen corresponding path program 1 times [2018-11-18 08:51:50,659 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:50,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:50,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:50,660 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:51:50,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:50,704 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 08:51:50,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:51:50,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 08:51:50,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 08:51:50,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 08:51:50,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 08:51:50,705 INFO L87 Difference]: Start difference. First operand 103 states and 107 transitions. Second operand 6 states. [2018-11-18 08:51:50,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:50,771 INFO L93 Difference]: Finished difference Result 102 states and 106 transitions. [2018-11-18 08:51:50,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 08:51:50,772 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2018-11-18 08:51:50,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:50,773 INFO L225 Difference]: With dead ends: 102 [2018-11-18 08:51:50,773 INFO L226 Difference]: Without dead ends: 102 [2018-11-18 08:51:50,773 INFO L604 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 [2018-11-18 08:51:50,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-11-18 08:51:50,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2018-11-18 08:51:50,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-11-18 08:51:50,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 106 transitions. [2018-11-18 08:51:50,776 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 106 transitions. Word has length 71 [2018-11-18 08:51:50,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:50,776 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 106 transitions. [2018-11-18 08:51:50,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 08:51:50,777 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 106 transitions. [2018-11-18 08:51:50,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-11-18 08:51:50,777 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:50,777 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 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] [2018-11-18 08:51:50,779 INFO L423 AbstractCegarLoop]: === Iteration 14 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:50,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:50,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1656853966, now seen corresponding path program 1 times [2018-11-18 08:51:50,779 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:50,779 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:50,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:50,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:50,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:50,815 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 08:51:50,816 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:50,816 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:50,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:50,860 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:50,880 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 08:51:50,895 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:51:50,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-11-18 08:51:50,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 08:51:50,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 08:51:50,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-18 08:51:50,896 INFO L87 Difference]: Start difference. First operand 102 states and 106 transitions. Second operand 5 states. [2018-11-18 08:51:50,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:50,905 INFO L93 Difference]: Finished difference Result 112 states and 116 transitions. [2018-11-18 08:51:50,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 08:51:50,906 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2018-11-18 08:51:50,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:50,907 INFO L225 Difference]: With dead ends: 112 [2018-11-18 08:51:50,907 INFO L226 Difference]: Without dead ends: 112 [2018-11-18 08:51:50,907 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-18 08:51:50,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-11-18 08:51:50,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108. [2018-11-18 08:51:50,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-11-18 08:51:50,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 112 transitions. [2018-11-18 08:51:50,910 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 112 transitions. Word has length 71 [2018-11-18 08:51:50,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:50,910 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 112 transitions. [2018-11-18 08:51:50,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 08:51:50,910 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 112 transitions. [2018-11-18 08:51:50,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-11-18 08:51:50,911 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:50,911 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 3, 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] [2018-11-18 08:51:50,911 INFO L423 AbstractCegarLoop]: === Iteration 15 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:50,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:50,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1007465412, now seen corresponding path program 2 times [2018-11-18 08:51:50,912 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:50,912 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:50,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:50,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:50,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:50,943 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 08:51:50,943 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:50,943 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:50,959 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 08:51:50,982 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 08:51:50,982 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 08:51:50,984 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:50,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2018-11-18 08:51:50,995 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,000 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 40 [2018-11-18 08:51:51,003 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2018-11-18 08:51:51,011 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,012 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,017 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,017 INFO L477 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 [2018-11-18 08:51:51,035 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,036 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,036 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,038 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,039 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,042 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,043 INFO L477 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 36 [2018-11-18 08:51:51,043 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,053 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,063 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,084 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,087 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 43 [2018-11-18 08:51:51,126 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,127 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,130 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,131 INFO L477 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 [2018-11-18 08:51:51,152 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,154 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,155 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,155 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,156 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,157 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,160 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,160 INFO L477 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 [2018-11-18 08:51:51,160 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,175 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,201 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,202 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,205 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,207 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,212 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,217 INFO L477 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 [2018-11-18 08:51:51,266 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,267 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,268 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,269 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,270 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,270 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,273 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,276 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,277 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,278 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,278 INFO L477 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 [2018-11-18 08:51:51,279 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,304 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,305 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,305 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,306 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,307 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,307 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,310 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,311 INFO L477 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 [2018-11-18 08:51:51,311 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,329 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,347 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,362 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,369 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,380 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-18 08:51:51,382 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,388 INFO L477 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 2 case distinctions, treesize of input 21 treesize of output 27 [2018-11-18 08:51:51,390 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,392 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,397 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 8 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 [2018-11-18 08:51:51,399 INFO L477 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 27 treesize of output 41 [2018-11-18 08:51:51,400 INFO L477 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 [2018-11-18 08:51:51,401 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,415 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,430 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,430 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,432 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:51,432 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 10 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 [2018-11-18 08:51:51,436 INFO L477 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 [2018-11-18 08:51:51,436 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,456 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,470 INFO L267 ElimStorePlain]: Start of recursive call 15: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:51:51,494 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-11-18 08:51:51,498 INFO L477 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 0 case distinctions, treesize of input 20 treesize of output 30 [2018-11-18 08:51:51,502 INFO L477 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 [2018-11-18 08:51:51,502 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,515 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,522 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:51,553 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 08:51:51,570 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 08:51:51,597 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. [2018-11-18 08:51:51,597 INFO L202 ElimStorePlain]: Needed 22 recursive calls to eliminate 6 variables, input treesize:59, output treesize:94 [2018-11-18 08:51:51,819 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-11-18 08:51:51,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 08:51:51,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2018-11-18 08:51:51,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 08:51:51,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 08:51:51,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-18 08:51:51,835 INFO L87 Difference]: Start difference. First operand 108 states and 112 transitions. Second operand 10 states. [2018-11-18 08:51:52,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:52,041 INFO L93 Difference]: Finished difference Result 119 states and 123 transitions. [2018-11-18 08:51:52,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 08:51:52,041 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2018-11-18 08:51:52,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:52,042 INFO L225 Difference]: With dead ends: 119 [2018-11-18 08:51:52,042 INFO L226 Difference]: Without dead ends: 119 [2018-11-18 08:51:52,042 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-11-18 08:51:52,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-11-18 08:51:52,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2018-11-18 08:51:52,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-11-18 08:51:52,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 119 transitions. [2018-11-18 08:51:52,045 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 119 transitions. Word has length 77 [2018-11-18 08:51:52,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:52,045 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 119 transitions. [2018-11-18 08:51:52,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 08:51:52,045 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 119 transitions. [2018-11-18 08:51:52,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-18 08:51:52,046 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:52,046 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 4, 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, 1] [2018-11-18 08:51:52,046 INFO L423 AbstractCegarLoop]: === Iteration 16 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:52,046 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:52,046 INFO L82 PathProgramCache]: Analyzing trace with hash -967498231, now seen corresponding path program 1 times [2018-11-18 08:51:52,046 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:52,047 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:52,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:52,047 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:51:52,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:52,091 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 08:51:52,092 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:52,092 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:52,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:52,140 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:52,150 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 08:51:52,165 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:51:52,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-18 08:51:52,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 08:51:52,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 08:51:52,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-18 08:51:52,166 INFO L87 Difference]: Start difference. First operand 115 states and 119 transitions. Second operand 7 states. [2018-11-18 08:51:52,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:52,190 INFO L93 Difference]: Finished difference Result 125 states and 129 transitions. [2018-11-18 08:51:52,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 08:51:52,190 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2018-11-18 08:51:52,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:52,191 INFO L225 Difference]: With dead ends: 125 [2018-11-18 08:51:52,191 INFO L226 Difference]: Without dead ends: 125 [2018-11-18 08:51:52,191 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-18 08:51:52,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-11-18 08:51:52,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2018-11-18 08:51:52,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-11-18 08:51:52,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 125 transitions. [2018-11-18 08:51:52,194 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 125 transitions. Word has length 84 [2018-11-18 08:51:52,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:52,194 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 125 transitions. [2018-11-18 08:51:52,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 08:51:52,194 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 125 transitions. [2018-11-18 08:51:52,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-11-18 08:51:52,195 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:52,195 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 5, 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, 1] [2018-11-18 08:51:52,195 INFO L423 AbstractCegarLoop]: === Iteration 17 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:52,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:52,195 INFO L82 PathProgramCache]: Analyzing trace with hash -908007469, now seen corresponding path program 2 times [2018-11-18 08:51:52,196 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:52,196 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:52,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:52,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:52,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:52,249 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 08:51:52,249 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:52,250 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:52,259 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 08:51:52,279 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 08:51:52,279 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 08:51:52,281 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:52,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 08:51:52,302 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:52,331 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 30 [2018-11-18 08:51:52,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2018-11-18 08:51:52,351 INFO L477 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 23 treesize of output 25 [2018-11-18 08:51:52,360 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 27 [2018-11-18 08:51:52,370 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2018-11-18 08:51:52,370 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:52,375 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:52,380 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:52,388 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:52,402 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:52,405 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:52,411 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 36 [2018-11-18 08:51:52,413 INFO L477 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 30 treesize of output 36 [2018-11-18 08:51:52,417 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 31 [2018-11-18 08:51:52,425 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2018-11-18 08:51:52,425 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:52,431 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:52,439 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:52,457 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:52,458 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:52,460 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:52,464 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 42 [2018-11-18 08:51:52,468 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:52,471 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:52,476 INFO L477 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 48 [2018-11-18 08:51:52,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 53 [2018-11-18 08:51:52,482 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:52,512 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:52,514 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:52,516 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:52,518 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:52,520 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:52,528 INFO L477 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 2 case distinctions, treesize of input 32 treesize of output 51 [2018-11-18 08:51:52,529 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-11-18 08:51:52,563 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 08:51:52,605 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 46 [2018-11-18 08:51:52,610 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 34 [2018-11-18 08:51:52,611 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:52,620 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:52,656 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 08:51:52,696 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-18 08:51:52,738 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-18 08:51:52,775 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-18 08:51:52,814 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. [2018-11-18 08:51:52,814 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 5 variables, input treesize:21, output treesize:165 [2018-11-18 08:51:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2018-11-18 08:51:52,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 08:51:52,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2018-11-18 08:51:52,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 08:51:52,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 08:51:52,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-11-18 08:51:52,939 INFO L87 Difference]: Start difference. First operand 121 states and 125 transitions. Second operand 8 states. [2018-11-18 08:51:53,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:53,107 INFO L93 Difference]: Finished difference Result 130 states and 134 transitions. [2018-11-18 08:51:53,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 08:51:53,108 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 90 [2018-11-18 08:51:53,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:53,108 INFO L225 Difference]: With dead ends: 130 [2018-11-18 08:51:53,108 INFO L226 Difference]: Without dead ends: 130 [2018-11-18 08:51:53,109 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2018-11-18 08:51:53,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-11-18 08:51:53,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2018-11-18 08:51:53,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-11-18 08:51:53,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 130 transitions. [2018-11-18 08:51:53,112 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 130 transitions. Word has length 90 [2018-11-18 08:51:53,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:53,112 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 130 transitions. [2018-11-18 08:51:53,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 08:51:53,112 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 130 transitions. [2018-11-18 08:51:53,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-18 08:51:53,113 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:53,113 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 6, 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, 1] [2018-11-18 08:51:53,113 INFO L423 AbstractCegarLoop]: === Iteration 18 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:53,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:53,113 INFO L82 PathProgramCache]: Analyzing trace with hash 159558174, now seen corresponding path program 1 times [2018-11-18 08:51:53,113 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:53,113 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:53,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:53,114 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:51:53,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:53,170 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 08:51:53,170 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:53,170 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:53,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:53,203 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:53,212 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 08:51:53,227 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:51:53,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-11-18 08:51:53,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 08:51:53,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 08:51:53,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-18 08:51:53,228 INFO L87 Difference]: Start difference. First operand 126 states and 130 transitions. Second operand 9 states. [2018-11-18 08:51:53,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:53,250 INFO L93 Difference]: Finished difference Result 136 states and 140 transitions. [2018-11-18 08:51:53,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 08:51:53,250 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2018-11-18 08:51:53,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:53,251 INFO L225 Difference]: With dead ends: 136 [2018-11-18 08:51:53,251 INFO L226 Difference]: Without dead ends: 136 [2018-11-18 08:51:53,252 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-18 08:51:53,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-11-18 08:51:53,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 132. [2018-11-18 08:51:53,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-11-18 08:51:53,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 136 transitions. [2018-11-18 08:51:53,254 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 136 transitions. Word has length 96 [2018-11-18 08:51:53,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:53,255 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 136 transitions. [2018-11-18 08:51:53,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 08:51:53,255 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 136 transitions. [2018-11-18 08:51:53,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-18 08:51:53,255 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:53,255 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 7, 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] [2018-11-18 08:51:53,255 INFO L423 AbstractCegarLoop]: === Iteration 19 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:53,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:53,256 INFO L82 PathProgramCache]: Analyzing trace with hash 265817320, now seen corresponding path program 2 times [2018-11-18 08:51:53,256 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:53,256 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:53,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:53,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:53,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:53,323 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 08:51:53,323 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:53,323 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:53,343 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 08:51:53,359 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 08:51:53,359 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 08:51:53,361 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:53,366 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-18 08:51:53,371 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,378 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 27 [2018-11-18 08:51:53,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-11-18 08:51:53,384 INFO L477 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 [2018-11-18 08:51:53,388 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,389 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,390 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,391 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 33 [2018-11-18 08:51:53,391 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,398 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,404 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,416 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,419 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,423 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33 [2018-11-18 08:51:53,427 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,430 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,435 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 39 [2018-11-18 08:51:53,438 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,439 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,440 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,440 INFO L477 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 [2018-11-18 08:51:53,441 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,463 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,465 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,466 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,467 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,467 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,468 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,469 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,470 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,470 INFO L477 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 27 treesize of output 62 [2018-11-18 08:51:53,470 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,491 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:51:53,514 INFO L477 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 [2018-11-18 08:51:53,517 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,517 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,518 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,518 INFO L477 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 [2018-11-18 08:51:53,518 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,527 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,545 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 08:51:53,568 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 08:51:53,589 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 08:51:53,615 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 23 [2018-11-18 08:51:53,617 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,625 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 29 [2018-11-18 08:51:53,627 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2018-11-18 08:51:53,630 INFO L477 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 [2018-11-18 08:51:53,636 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,637 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,638 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,640 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,640 INFO L477 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 [2018-11-18 08:51:53,641 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,645 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,649 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,658 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,660 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 35 [2018-11-18 08:51:53,667 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,668 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,672 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 41 [2018-11-18 08:51:53,701 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,702 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,702 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,703 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,704 INFO L477 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 36 treesize of output 40 [2018-11-18 08:51:53,704 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,720 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,721 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,721 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,723 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,724 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,725 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,725 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,726 INFO L477 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 [2018-11-18 08:51:53,726 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,742 INFO L267 ElimStorePlain]: Start of recursive call 19: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:51:53,760 INFO L477 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 [2018-11-18 08:51:53,766 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,767 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,767 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,769 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:53,770 INFO L477 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 [2018-11-18 08:51:53,770 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,774 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,781 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,788 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,791 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:53,816 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. [2018-11-18 08:51:53,817 INFO L202 ElimStorePlain]: Needed 23 recursive calls to eliminate 6 variables, input treesize:42, output treesize:78 [2018-11-18 08:51:53,969 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2018-11-18 08:51:53,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 08:51:53,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2018-11-18 08:51:53,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 08:51:53,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 08:51:53,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2018-11-18 08:51:53,985 INFO L87 Difference]: Start difference. First operand 132 states and 136 transitions. Second operand 12 states. [2018-11-18 08:51:54,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:54,145 INFO L93 Difference]: Finished difference Result 141 states and 145 transitions. [2018-11-18 08:51:54,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 08:51:54,146 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 102 [2018-11-18 08:51:54,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:54,146 INFO L225 Difference]: With dead ends: 141 [2018-11-18 08:51:54,146 INFO L226 Difference]: Without dead ends: 141 [2018-11-18 08:51:54,147 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2018-11-18 08:51:54,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-11-18 08:51:54,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 137. [2018-11-18 08:51:54,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-11-18 08:51:54,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 141 transitions. [2018-11-18 08:51:54,149 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 141 transitions. Word has length 102 [2018-11-18 08:51:54,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:54,150 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 141 transitions. [2018-11-18 08:51:54,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 08:51:54,150 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 141 transitions. [2018-11-18 08:51:54,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-18 08:51:54,151 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:54,151 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 8, 7, 7, 7, 7, 7, 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] [2018-11-18 08:51:54,151 INFO L423 AbstractCegarLoop]: === Iteration 20 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:54,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:54,151 INFO L82 PathProgramCache]: Analyzing trace with hash -426112564, now seen corresponding path program 1 times [2018-11-18 08:51:54,152 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:54,152 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:54,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:54,152 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:51:54,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:54,223 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2018-11-18 08:51:54,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:51:54,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 08:51:54,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 08:51:54,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 08:51:54,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 08:51:54,224 INFO L87 Difference]: Start difference. First operand 137 states and 141 transitions. Second operand 6 states. [2018-11-18 08:51:54,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:54,279 INFO L93 Difference]: Finished difference Result 136 states and 140 transitions. [2018-11-18 08:51:54,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 08:51:54,279 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2018-11-18 08:51:54,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:54,280 INFO L225 Difference]: With dead ends: 136 [2018-11-18 08:51:54,280 INFO L226 Difference]: Without dead ends: 136 [2018-11-18 08:51:54,280 INFO L604 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 [2018-11-18 08:51:54,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-11-18 08:51:54,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2018-11-18 08:51:54,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-11-18 08:51:54,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 140 transitions. [2018-11-18 08:51:54,282 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 140 transitions. Word has length 119 [2018-11-18 08:51:54,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:54,282 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 140 transitions. [2018-11-18 08:51:54,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 08:51:54,282 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 140 transitions. [2018-11-18 08:51:54,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-18 08:51:54,283 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:54,283 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 8, 7, 7, 7, 7, 7, 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] [2018-11-18 08:51:54,283 INFO L423 AbstractCegarLoop]: === Iteration 21 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:54,283 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:54,283 INFO L82 PathProgramCache]: Analyzing trace with hash -426112563, now seen corresponding path program 1 times [2018-11-18 08:51:54,284 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:54,284 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:54,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:54,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:54,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2018-11-18 08:51:54,352 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:54,352 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:54,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:54,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:54,394 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:54,402 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2018-11-18 08:51:54,417 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:51:54,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2018-11-18 08:51:54,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 08:51:54,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 08:51:54,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-18 08:51:54,418 INFO L87 Difference]: Start difference. First operand 136 states and 140 transitions. Second operand 11 states. [2018-11-18 08:51:54,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:54,453 INFO L93 Difference]: Finished difference Result 146 states and 150 transitions. [2018-11-18 08:51:54,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 08:51:54,453 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 119 [2018-11-18 08:51:54,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:54,454 INFO L225 Difference]: With dead ends: 146 [2018-11-18 08:51:54,454 INFO L226 Difference]: Without dead ends: 146 [2018-11-18 08:51:54,454 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-18 08:51:54,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-11-18 08:51:54,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 142. [2018-11-18 08:51:54,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-11-18 08:51:54,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 146 transitions. [2018-11-18 08:51:54,457 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 146 transitions. Word has length 119 [2018-11-18 08:51:54,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:54,457 INFO L480 AbstractCegarLoop]: Abstraction has 142 states and 146 transitions. [2018-11-18 08:51:54,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 08:51:54,458 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 146 transitions. [2018-11-18 08:51:54,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-11-18 08:51:54,458 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:54,458 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 9, 8, 8, 8, 8, 8, 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] [2018-11-18 08:51:54,458 INFO L423 AbstractCegarLoop]: === Iteration 22 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:54,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:54,459 INFO L82 PathProgramCache]: Analyzing trace with hash 43066307, now seen corresponding path program 2 times [2018-11-18 08:51:54,459 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:54,459 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:54,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:54,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:54,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:54,542 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 184 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2018-11-18 08:51:54,542 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:54,542 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:54,557 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 08:51:54,578 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 08:51:54,578 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 08:51:54,580 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:54,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-18 08:51:54,591 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,597 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 27 [2018-11-18 08:51:54,600 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-11-18 08:51:54,604 INFO L477 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 [2018-11-18 08:51:54,607 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,610 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,611 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,611 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 33 [2018-11-18 08:51:54,612 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:54,617 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:54,622 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:54,633 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,635 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,639 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33 [2018-11-18 08:51:54,642 INFO L477 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 [2018-11-18 08:51:54,645 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,645 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,646 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,647 INFO L477 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 [2018-11-18 08:51:54,647 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:54,656 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:54,669 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,670 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,673 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,677 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 39 [2018-11-18 08:51:54,679 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,680 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,680 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,681 INFO L477 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 [2018-11-18 08:51:54,681 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:54,701 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,703 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,703 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,704 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,705 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,708 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,709 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,710 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,710 INFO L477 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 27 treesize of output 62 [2018-11-18 08:51:54,711 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:54,736 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:51:54,757 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 08:51:54,784 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 08:51:54,805 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 08:51:54,830 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 23 [2018-11-18 08:51:54,832 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,836 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 29 [2018-11-18 08:51:54,839 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2018-11-18 08:51:54,842 INFO L477 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 [2018-11-18 08:51:54,848 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,848 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,849 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,851 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,851 INFO L477 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 [2018-11-18 08:51:54,852 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:54,856 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:54,860 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:54,869 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,871 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,875 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 35 [2018-11-18 08:51:54,878 INFO L477 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 [2018-11-18 08:51:54,891 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,891 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,892 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,894 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,894 INFO L477 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 [2018-11-18 08:51:54,894 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:54,901 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:54,913 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,914 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,916 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,920 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 41 [2018-11-18 08:51:54,949 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,949 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,950 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,951 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,951 INFO L477 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 36 treesize of output 40 [2018-11-18 08:51:54,952 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:54,968 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,969 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,969 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,971 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,972 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,973 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,973 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:54,974 INFO L477 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 [2018-11-18 08:51:54,974 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:54,992 INFO L267 ElimStorePlain]: Start of recursive call 21: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 08:51:55,002 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:55,009 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:55,012 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:55,037 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. [2018-11-18 08:51:55,037 INFO L202 ElimStorePlain]: Needed 23 recursive calls to eliminate 6 variables, input treesize:42, output treesize:78 [2018-11-18 08:51:55,246 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2018-11-18 08:51:55,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 08:51:55,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2018-11-18 08:51:55,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 08:51:55,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 08:51:55,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2018-11-18 08:51:55,262 INFO L87 Difference]: Start difference. First operand 142 states and 146 transitions. Second operand 16 states. [2018-11-18 08:51:55,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:55,607 INFO L93 Difference]: Finished difference Result 153 states and 157 transitions. [2018-11-18 08:51:55,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 08:51:55,608 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 125 [2018-11-18 08:51:55,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:55,608 INFO L225 Difference]: With dead ends: 153 [2018-11-18 08:51:55,608 INFO L226 Difference]: Without dead ends: 153 [2018-11-18 08:51:55,609 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2018-11-18 08:51:55,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-11-18 08:51:55,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 149. [2018-11-18 08:51:55,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-11-18 08:51:55,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 153 transitions. [2018-11-18 08:51:55,612 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 153 transitions. Word has length 125 [2018-11-18 08:51:55,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:55,612 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 153 transitions. [2018-11-18 08:51:55,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 08:51:55,612 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 153 transitions. [2018-11-18 08:51:55,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-18 08:51:55,613 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:55,613 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:51:55,613 INFO L423 AbstractCegarLoop]: === Iteration 23 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:55,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:55,614 INFO L82 PathProgramCache]: Analyzing trace with hash -276874823, now seen corresponding path program 1 times [2018-11-18 08:51:55,614 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:55,614 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:55,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:55,614 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:51:55,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:55,689 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2018-11-18 08:51:55,689 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:55,689 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:55,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:55,737 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:55,752 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2018-11-18 08:51:55,777 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:51:55,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2018-11-18 08:51:55,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 08:51:55,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 08:51:55,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-11-18 08:51:55,778 INFO L87 Difference]: Start difference. First operand 149 states and 153 transitions. Second operand 13 states. [2018-11-18 08:51:55,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:55,839 INFO L93 Difference]: Finished difference Result 155 states and 159 transitions. [2018-11-18 08:51:55,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 08:51:55,839 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 132 [2018-11-18 08:51:55,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:55,840 INFO L225 Difference]: With dead ends: 155 [2018-11-18 08:51:55,840 INFO L226 Difference]: Without dead ends: 155 [2018-11-18 08:51:55,840 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-11-18 08:51:55,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-11-18 08:51:55,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2018-11-18 08:51:55,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-11-18 08:51:55,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 159 transitions. [2018-11-18 08:51:55,843 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 159 transitions. Word has length 132 [2018-11-18 08:51:55,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:55,843 INFO L480 AbstractCegarLoop]: Abstraction has 155 states and 159 transitions. [2018-11-18 08:51:55,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 08:51:55,843 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 159 transitions. [2018-11-18 08:51:55,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-18 08:51:55,844 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:55,844 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:51:55,844 INFO L423 AbstractCegarLoop]: === Iteration 24 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:55,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:55,844 INFO L82 PathProgramCache]: Analyzing trace with hash -256344189, now seen corresponding path program 2 times [2018-11-18 08:51:55,845 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:55,845 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:55,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:55,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:55,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:55,880 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2018-11-18 08:51:55,880 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:55,880 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:55,897 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 08:51:55,915 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 08:51:55,915 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 08:51:55,917 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:55,920 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-18 08:51:55,923 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:55,928 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 27 [2018-11-18 08:51:55,930 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:55,931 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:55,939 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33 [2018-11-18 08:51:55,941 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:55,943 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:55,948 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 39 [2018-11-18 08:51:55,952 INFO L477 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 [2018-11-18 08:51:55,953 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:55,972 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:55,974 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:55,975 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:55,978 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:55,982 INFO L477 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 27 treesize of output 42 [2018-11-18 08:51:55,982 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-11-18 08:51:56,005 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 08:51:56,032 INFO L477 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 [2018-11-18 08:51:56,036 INFO L477 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 [2018-11-18 08:51:56,036 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:56,042 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:56,065 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 08:51:56,095 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-11-18 08:51:56,098 INFO L477 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 [2018-11-18 08:51:56,102 INFO L477 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 [2018-11-18 08:51:56,102 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:56,106 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:56,110 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:56,138 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-18 08:51:56,164 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-18 08:51:56,191 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. [2018-11-18 08:51:56,192 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 5 variables, input treesize:22, output treesize:78 [2018-11-18 08:51:56,251 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2018-11-18 08:51:56,267 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 08:51:56,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-11-18 08:51:56,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 08:51:56,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 08:51:56,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-18 08:51:56,267 INFO L87 Difference]: Start difference. First operand 155 states and 159 transitions. Second operand 7 states. [2018-11-18 08:51:56,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:56,310 INFO L93 Difference]: Finished difference Result 164 states and 168 transitions. [2018-11-18 08:51:56,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 08:51:56,310 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2018-11-18 08:51:56,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:56,311 INFO L225 Difference]: With dead ends: 164 [2018-11-18 08:51:56,311 INFO L226 Difference]: Without dead ends: 164 [2018-11-18 08:51:56,311 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-11-18 08:51:56,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-11-18 08:51:56,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 160. [2018-11-18 08:51:56,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2018-11-18 08:51:56,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 164 transitions. [2018-11-18 08:51:56,314 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 164 transitions. Word has length 138 [2018-11-18 08:51:56,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:56,314 INFO L480 AbstractCegarLoop]: Abstraction has 160 states and 164 transitions. [2018-11-18 08:51:56,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 08:51:56,315 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 164 transitions. [2018-11-18 08:51:56,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-11-18 08:51:56,315 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:56,315 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 3, 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] [2018-11-18 08:51:56,315 INFO L423 AbstractCegarLoop]: === Iteration 25 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:56,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:56,316 INFO L82 PathProgramCache]: Analyzing trace with hash -304415060, now seen corresponding path program 1 times [2018-11-18 08:51:56,316 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:56,316 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:56,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:56,317 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:51:56,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2018-11-18 08:51:56,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:51:56,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 08:51:56,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 08:51:56,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:51:56,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:51:56,363 INFO L87 Difference]: Start difference. First operand 160 states and 164 transitions. Second operand 3 states. [2018-11-18 08:51:56,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:56,379 INFO L93 Difference]: Finished difference Result 159 states and 163 transitions. [2018-11-18 08:51:56,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:51:56,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2018-11-18 08:51:56,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:56,381 INFO L225 Difference]: With dead ends: 159 [2018-11-18 08:51:56,381 INFO L226 Difference]: Without dead ends: 159 [2018-11-18 08:51:56,381 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:51:56,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-11-18 08:51:56,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2018-11-18 08:51:56,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-11-18 08:51:56,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 163 transitions. [2018-11-18 08:51:56,384 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 163 transitions. Word has length 144 [2018-11-18 08:51:56,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:56,385 INFO L480 AbstractCegarLoop]: Abstraction has 159 states and 163 transitions. [2018-11-18 08:51:56,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 08:51:56,385 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 163 transitions. [2018-11-18 08:51:56,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-18 08:51:56,385 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:56,386 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 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, 1] [2018-11-18 08:51:56,386 INFO L423 AbstractCegarLoop]: === Iteration 26 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:56,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:56,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1162217587, now seen corresponding path program 1 times [2018-11-18 08:51:56,386 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:56,386 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:56,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:56,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:56,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:56,442 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2018-11-18 08:51:56,442 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:51:56,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 08:51:56,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 08:51:56,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 08:51:56,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 08:51:56,443 INFO L87 Difference]: Start difference. First operand 159 states and 163 transitions. Second operand 6 states. [2018-11-18 08:51:56,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:56,506 INFO L93 Difference]: Finished difference Result 158 states and 162 transitions. [2018-11-18 08:51:56,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 08:51:56,508 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2018-11-18 08:51:56,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:56,508 INFO L225 Difference]: With dead ends: 158 [2018-11-18 08:51:56,509 INFO L226 Difference]: Without dead ends: 158 [2018-11-18 08:51:56,509 INFO L604 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 [2018-11-18 08:51:56,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-11-18 08:51:56,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2018-11-18 08:51:56,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-11-18 08:51:56,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 162 transitions. [2018-11-18 08:51:56,512 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 162 transitions. Word has length 155 [2018-11-18 08:51:56,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:56,512 INFO L480 AbstractCegarLoop]: Abstraction has 158 states and 162 transitions. [2018-11-18 08:51:56,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 08:51:56,512 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 162 transitions. [2018-11-18 08:51:56,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-18 08:51:56,513 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:56,513 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 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, 1] [2018-11-18 08:51:56,513 INFO L423 AbstractCegarLoop]: === Iteration 27 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:56,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:56,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1162217588, now seen corresponding path program 1 times [2018-11-18 08:51:56,514 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:56,514 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:56,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:56,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:56,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:56,561 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2018-11-18 08:51:56,561 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:56,561 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/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 [2018-11-18 08:51:56,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:56,628 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:56,643 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2018-11-18 08:51:56,666 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 08:51:56,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-11-18 08:51:56,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 08:51:56,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 08:51:56,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-18 08:51:56,667 INFO L87 Difference]: Start difference. First operand 158 states and 162 transitions. Second operand 6 states. [2018-11-18 08:51:56,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:56,732 INFO L93 Difference]: Finished difference Result 168 states and 172 transitions. [2018-11-18 08:51:56,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 08:51:56,732 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2018-11-18 08:51:56,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:56,733 INFO L225 Difference]: With dead ends: 168 [2018-11-18 08:51:56,733 INFO L226 Difference]: Without dead ends: 168 [2018-11-18 08:51:56,733 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-18 08:51:56,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2018-11-18 08:51:56,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 164. [2018-11-18 08:51:56,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-11-18 08:51:56,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 168 transitions. [2018-11-18 08:51:56,736 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 168 transitions. Word has length 155 [2018-11-18 08:51:56,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:56,737 INFO L480 AbstractCegarLoop]: Abstraction has 164 states and 168 transitions. [2018-11-18 08:51:56,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 08:51:56,737 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 168 transitions. [2018-11-18 08:51:56,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-11-18 08:51:56,737 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:51:56,738 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 4, 3, 3, 3, 3, 3, 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, 1] [2018-11-18 08:51:56,738 INFO L423 AbstractCegarLoop]: === Iteration 28 === [getNumbers3Err0REQUIRES_VIOLATION, getNumbers3Err1REQUIRES_VIOLATION, getNumbers3Err2REQUIRES_VIOLATION, getNumbers3Err3REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err1REQUIRES_VIOLATION, getNumbers4Err2REQUIRES_VIOLATION, getNumbers4Err3REQUIRES_VIOLATION, getNumbers4Err0REQUIRES_VIOLATION, getNumbers4Err1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 08:51:56,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:51:56,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1887403382, now seen corresponding path program 2 times [2018-11-18 08:51:56,738 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:51:56,738 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:51:56,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:56,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:51:56,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:51:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:51:56,804 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2018-11-18 08:51:56,805 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:51:56,805 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:51:56,817 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 08:51:56,841 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 08:51:56,842 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 08:51:56,845 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:51:56,850 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-18 08:51:56,882 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:56,895 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 27 [2018-11-18 08:51:56,898 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-11-18 08:51:56,901 INFO L477 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 [2018-11-18 08:51:56,906 INFO L477 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 [2018-11-18 08:51:56,906 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:56,911 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:56,916 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:56,928 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:56,930 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:56,935 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33 [2018-11-18 08:51:56,938 INFO L477 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 [2018-11-18 08:51:56,942 INFO L477 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 [2018-11-18 08:51:56,942 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:56,949 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 08:51:56,963 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:56,963 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:56,966 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:56,971 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 39 [2018-11-18 08:51:56,974 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:56,979 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 08:51:56,984 INFO L477 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 [2018-11-18 08:51:56,984 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-11-18 08:51:57,017 INFO L477 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 [2018-11-18 08:51:57,018 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 08:51:57,044 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 08:51:57,074 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 08:51:57,105 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-18 08:51:57,129 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-18 08:51:57,156 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. [2018-11-18 08:51:57,156 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 5 variables, input treesize:22, output treesize:78 [2018-11-18 08:51:57,234 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2018-11-18 08:51:57,249 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 08:51:57,249 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2018-11-18 08:51:57,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 08:51:57,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 08:51:57,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-18 08:51:57,249 INFO L87 Difference]: Start difference. First operand 164 states and 168 transitions. Second operand 11 states. [2018-11-18 08:51:57,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:51:57,352 INFO L93 Difference]: Finished difference Result 175 states and 179 transitions. [2018-11-18 08:51:57,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 08:51:57,352 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 161 [2018-11-18 08:51:57,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:51:57,352 INFO L225 Difference]: With dead ends: 175 [2018-11-18 08:51:57,352 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 08:51:57,352 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2018-11-18 08:51:57,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 08:51:57,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 08:51:57,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 08:51:57,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 08:51:57,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2018-11-18 08:51:57,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:51:57,353 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 08:51:57,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 08:51:57,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 08:51:57,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 08:51:57,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:51:57 BoogieIcfgContainer [2018-11-18 08:51:57,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 08:51:57,357 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:51:57,357 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:51:57,357 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:51:57,358 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:51:43" (3/4) ... [2018-11-18 08:51:57,361 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 08:51:57,366 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 08:51:57,366 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers3 [2018-11-18 08:51:57,366 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers2 [2018-11-18 08:51:57,366 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers4 [2018-11-18 08:51:57,367 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 08:51:57,367 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-11-18 08:51:57,370 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2018-11-18 08:51:57,370 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-18 08:51:57,370 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 08:51:57,370 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 08:51:57,397 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b24058fa-131d-463f-8d24-7f3e6aa4203b/bin-2019/uautomizer/witness.graphml [2018-11-18 08:51:57,397 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:51:57,398 INFO L168 Benchmark]: Toolchain (without parser) took 14751.42 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 346.0 MB). Free memory was 959.2 MB in the beginning and 1.3 GB in the end (delta: -318.6 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:51:57,399 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:51:57,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.59 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:51:57,399 INFO L168 Benchmark]: Boogie Preprocessor took 61.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -194.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:51:57,399 INFO L168 Benchmark]: RCFGBuilder took 285.61 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-11-18 08:51:57,399 INFO L168 Benchmark]: TraceAbstraction took 14186.53 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 210.8 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -170.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:51:57,400 INFO L168 Benchmark]: Witness Printer took 40.39 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:51:57,400 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 173.59 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -194.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 285.61 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14186.53 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 210.8 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -170.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. * Witness Printer took 40.39 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. 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: 43]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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: 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, 75 locations, 17 error locations. SAFE Result, 14.1s OverallTime, 28 OverallIterations, 11 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1494 SDtfs, 1581 SDslu, 6095 SDs, 0 SdLazy, 2652 SolverSat, 111 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1898 GetRequests, 1628 SyntacticMatches, 1 SemanticMatches, 269 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=27, 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: 0.1s AutomataMinimizationTime, 28 MinimizatonAttempts, 52 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.4s InterpolantComputationTime, 3916 NumberOfCodeBlocks, 3336 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 3868 ConstructedInterpolants, 446 QuantifiedInterpolants, 2765850 SizeOfPredicates, 61 NumberOfNonLiveVariables, 4308 ConjunctsInSsa, 214 ConjunctsInUnsatCore, 48 InterpolantComputations, 17 PerfectInterpolantSequences, 8943/11136 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...