./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers2_false-valid-deref.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers2_false-valid-deref.c -s /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 e872a0dffbf376eb2d8b1e3516401a8dafe115a6 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:06:37,785 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:06:37,786 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:06:37,794 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:06:37,795 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:06:37,795 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:06:37,796 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:06:37,797 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:06:37,798 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:06:37,799 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:06:37,799 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:06:37,800 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:06:37,800 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:06:37,801 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:06:37,802 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:06:37,803 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:06:37,803 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:06:37,804 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:06:37,806 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:06:37,807 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:06:37,808 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:06:37,809 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:06:37,810 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:06:37,810 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:06:37,810 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:06:37,811 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:06:37,811 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:06:37,812 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:06:37,813 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:06:37,814 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:06:37,814 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:06:37,815 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:06:37,815 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:06:37,815 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:06:37,815 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:06:37,816 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:06:37,816 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-18 12:06:37,825 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:06:37,825 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:06:37,826 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:06:37,826 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:06:37,826 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:06:37,827 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:06:37,827 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:06:37,827 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 12:06:37,827 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:06:37,827 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:06:37,827 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:06:37,827 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 12:06:37,828 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 12:06:37,828 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 12:06:37,828 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:06:37,828 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:06:37,828 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:06:37,828 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:06:37,830 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:06:37,830 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:06:37,830 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:06:37,830 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:06:37,830 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:06:37,830 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:06:37,831 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:06:37,831 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:06:37,831 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_147f6996-c6c5-4d30-8ffe-db0963759a44/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 -> e872a0dffbf376eb2d8b1e3516401a8dafe115a6 [2018-11-18 12:06:37,852 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:06:37,861 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:06:37,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:06:37,863 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:06:37,863 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:06:37,864 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext3/getNumbers2_false-valid-deref.c [2018-11-18 12:06:37,901 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/bin-2019/uautomizer/data/b8a92b9e1/33212ea25a41487591fcae0320759485/FLAGce2ad5959 [2018-11-18 12:06:38,297 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:06:38,297 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/sv-benchmarks/c/memsafety-ext3/getNumbers2_false-valid-deref.c [2018-11-18 12:06:38,301 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/bin-2019/uautomizer/data/b8a92b9e1/33212ea25a41487591fcae0320759485/FLAGce2ad5959 [2018-11-18 12:06:38,309 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/bin-2019/uautomizer/data/b8a92b9e1/33212ea25a41487591fcae0320759485 [2018-11-18 12:06:38,311 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:06:38,312 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:06:38,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:06:38,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:06:38,314 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:06:38,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:06:38" (1/1) ... [2018-11-18 12:06:38,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a19fc73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:38, skipping insertion in model container [2018-11-18 12:06:38,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:06:38" (1/1) ... [2018-11-18 12:06:38,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:06:38,335 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:06:38,438 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:06:38,446 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:06:38,456 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:06:38,465 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:06:38,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:38 WrapperNode [2018-11-18 12:06:38,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:06:38,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:06:38,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:06:38,466 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:06:38,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:38" (1/1) ... [2018-11-18 12:06:38,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:38" (1/1) ... [2018-11-18 12:06:38,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:38" (1/1) ... [2018-11-18 12:06:38,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:38" (1/1) ... [2018-11-18 12:06:38,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:38" (1/1) ... [2018-11-18 12:06:38,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:38" (1/1) ... [2018-11-18 12:06:38,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:38" (1/1) ... [2018-11-18 12:06:38,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:06:38,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:06:38,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:06:38,487 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:06:38,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:06:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:06:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-18 12:06:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers2 [2018-11-18 12:06:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:06:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-18 12:06:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:06:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers2 [2018-11-18 12:06:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:06:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:06:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:06:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:06:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:06:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:06:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 12:06:38,709 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:06:38,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:06:38 BoogieIcfgContainer [2018-11-18 12:06:38,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:06:38,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:06:38,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:06:38,712 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:06:38,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:06:38" (1/3) ... [2018-11-18 12:06:38,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513594e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:06:38, skipping insertion in model container [2018-11-18 12:06:38,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:38" (2/3) ... [2018-11-18 12:06:38,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513594e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:06:38, skipping insertion in model container [2018-11-18 12:06:38,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:06:38" (3/3) ... [2018-11-18 12:06:38,714 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers2_false-valid-deref.c [2018-11-18 12:06:38,720 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:06:38,724 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-11-18 12:06:38,732 INFO L257 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2018-11-18 12:06:38,747 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:06:38,747 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:06:38,747 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 12:06:38,747 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:06:38,748 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:06:38,748 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:06:38,748 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:06:38,748 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:06:38,748 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:06:38,758 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-11-18 12:06:38,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 12:06:38,765 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:38,766 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:06:38,767 INFO L423 AbstractCegarLoop]: === Iteration 1 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:38,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:38,771 INFO L82 PathProgramCache]: Analyzing trace with hash -2106365667, now seen corresponding path program 1 times [2018-11-18 12:06:38,772 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:38,773 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:38,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:38,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:38,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:38,897 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 12:06:38,899 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:06:38,899 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:06:38,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:06:38,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:06:38,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:06:38,910 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2018-11-18 12:06:38,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:38,963 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-11-18 12:06:38,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:06:38,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 12:06:38,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:38,970 INFO L225 Difference]: With dead ends: 40 [2018-11-18 12:06:38,970 INFO L226 Difference]: Without dead ends: 37 [2018-11-18 12:06:38,971 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:06:38,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-18 12:06:38,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-18 12:06:38,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 12:06:38,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2018-11-18 12:06:38,991 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 11 [2018-11-18 12:06:38,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:38,991 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2018-11-18 12:06:38,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:06:38,992 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2018-11-18 12:06:38,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 12:06:38,992 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:38,992 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:06:38,992 INFO L423 AbstractCegarLoop]: === Iteration 2 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:38,993 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:38,993 INFO L82 PathProgramCache]: Analyzing trace with hash -2106365666, now seen corresponding path program 1 times [2018-11-18 12:06:38,993 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:38,993 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:38,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:38,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:38,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:39,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:39,093 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 12:06:39,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:06:39,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:06:39,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 12:06:39,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 12:06:39,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:06:39,095 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 4 states. [2018-11-18 12:06:39,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:39,143 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2018-11-18 12:06:39,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 12:06:39,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-18 12:06:39,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:39,143 INFO L225 Difference]: With dead ends: 41 [2018-11-18 12:06:39,144 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 12:06:39,144 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:06:39,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 12:06:39,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-11-18 12:06:39,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 12:06:39,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2018-11-18 12:06:39,149 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 11 [2018-11-18 12:06:39,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:39,149 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2018-11-18 12:06:39,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 12:06:39,149 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-11-18 12:06:39,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 12:06:39,150 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:39,150 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:06:39,150 INFO L423 AbstractCegarLoop]: === Iteration 3 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:39,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:39,150 INFO L82 PathProgramCache]: Analyzing trace with hash -633749003, now seen corresponding path program 1 times [2018-11-18 12:06:39,150 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:39,150 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:39,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:39,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:39,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:39,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:39,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:06:39,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 12:06:39,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:06:39,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:06:39,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:06:39,262 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 6 states. [2018-11-18 12:06:39,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:39,343 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-11-18 12:06:39,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 12:06:39,343 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-11-18 12:06:39,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:39,344 INFO L225 Difference]: With dead ends: 40 [2018-11-18 12:06:39,344 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 12:06:39,345 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:06:39,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 12:06:39,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2018-11-18 12:06:39,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 12:06:39,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2018-11-18 12:06:39,348 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 15 [2018-11-18 12:06:39,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:39,349 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2018-11-18 12:06:39,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:06:39,349 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2018-11-18 12:06:39,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 12:06:39,349 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:39,349 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:06:39,350 INFO L423 AbstractCegarLoop]: === Iteration 4 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:39,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:39,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1868308731, now seen corresponding path program 1 times [2018-11-18 12:06:39,350 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:39,350 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:39,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:39,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:39,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:39,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:39,379 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:39,379 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:39,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:39,405 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:39,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:39,445 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:39,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-11-18 12:06:39,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 12:06:39,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 12:06:39,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-18 12:06:39,446 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 5 states. [2018-11-18 12:06:39,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:39,466 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2018-11-18 12:06:39,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 12:06:39,466 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-11-18 12:06:39,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:39,467 INFO L225 Difference]: With dead ends: 44 [2018-11-18 12:06:39,467 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 12:06:39,467 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 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 12:06:39,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 12:06:39,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2018-11-18 12:06:39,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-18 12:06:39,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2018-11-18 12:06:39,470 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 21 [2018-11-18 12:06:39,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:39,470 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2018-11-18 12:06:39,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 12:06:39,470 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2018-11-18 12:06:39,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 12:06:39,471 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:39,471 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:06:39,471 INFO L423 AbstractCegarLoop]: === Iteration 5 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:39,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:39,471 INFO L82 PathProgramCache]: Analyzing trace with hash 309221148, now seen corresponding path program 2 times [2018-11-18 12:06:39,471 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:39,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:39,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:39,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:39,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:39,507 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:39,507 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:39,507 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:39,519 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 12:06:39,531 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 12:06:39,531 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:39,533 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:39,548 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 12:06:39,553 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 12:06:39,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 12:06:39,563 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 12:06:39,570 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 12:06:39,578 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 12:06:39,578 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:9, output treesize:21 [2018-11-18 12:06:39,631 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 12:06:39,632 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 12:06:39,633 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 24 [2018-11-18 12:06:39,634 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 12:06:39,650 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 12:06:39,651 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 12:06:39,654 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 12:06:39,661 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 34 [2018-11-18 12:06:39,662 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 12:06:39,686 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 12:06:39,687 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:54 [2018-11-18 12:06:39,730 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 12:06:39,745 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 12:06:39,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2018-11-18 12:06:39,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 12:06:39,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 12:06:39,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:06:39,746 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 9 states. [2018-11-18 12:06:39,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:39,949 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2018-11-18 12:06:39,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 12:06:39,950 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2018-11-18 12:06:39,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:39,950 INFO L225 Difference]: With dead ends: 47 [2018-11-18 12:06:39,950 INFO L226 Difference]: Without dead ends: 47 [2018-11-18 12:06:39,951 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-11-18 12:06:39,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-18 12:06:39,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2018-11-18 12:06:39,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-18 12:06:39,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2018-11-18 12:06:39,954 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 25 [2018-11-18 12:06:39,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:39,955 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2018-11-18 12:06:39,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 12:06:39,955 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2018-11-18 12:06:39,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 12:06:39,956 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:39,956 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:06:39,956 INFO L423 AbstractCegarLoop]: === Iteration 6 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:39,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:39,956 INFO L82 PathProgramCache]: Analyzing trace with hash 998304692, now seen corresponding path program 1 times [2018-11-18 12:06:39,956 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:39,956 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:39,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:39,957 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:39,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:39,993 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:39,993 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:39,993 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:40,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:40,030 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:40,048 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:40,063 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:40,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-18 12:06:40,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:06:40,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:06:40,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:06:40,064 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 7 states. [2018-11-18 12:06:40,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:40,082 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2018-11-18 12:06:40,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 12:06:40,083 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2018-11-18 12:06:40,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:40,084 INFO L225 Difference]: With dead ends: 51 [2018-11-18 12:06:40,084 INFO L226 Difference]: Without dead ends: 51 [2018-11-18 12:06:40,084 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 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 12:06:40,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-11-18 12:06:40,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2018-11-18 12:06:40,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-18 12:06:40,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2018-11-18 12:06:40,088 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 29 [2018-11-18 12:06:40,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:40,088 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2018-11-18 12:06:40,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:06:40,088 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2018-11-18 12:06:40,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 12:06:40,089 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:40,089 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:06:40,089 INFO L423 AbstractCegarLoop]: === Iteration 7 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:40,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:40,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1183228725, now seen corresponding path program 2 times [2018-11-18 12:06:40,090 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:40,090 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:40,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:40,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:40,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:40,155 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:40,155 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:40,155 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:40,167 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 12:06:40,181 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 12:06:40,181 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:40,184 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:40,188 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 12:06:40,192 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 12:06:40,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 12:06:40,202 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 12:06:40,219 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 12:06:40,231 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 12:06:40,231 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 12:06:40,242 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 12:06:40,242 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:19, output treesize:37 [2018-11-18 12:06:40,313 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 12:06:40,313 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2018-11-18 12:06:40,314 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 12:06:40,331 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 12:06:40,331 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 36 [2018-11-18 12:06:40,332 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 12:06:40,350 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 12:06:40,351 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 12:06:40,351 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2018-11-18 12:06:40,352 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 12:06:40,369 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 12:06:40,370 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 12:06:40,371 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 12:06:40,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2018-11-18 12:06:40,372 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 12:06:40,387 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-18 12:06:40,387 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:65, output treesize:50 [2018-11-18 12:06:40,448 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-18 12:06:40,472 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 12:06:40,472 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2018-11-18 12:06:40,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 12:06:40,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 12:06:40,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-11-18 12:06:40,474 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand 12 states. [2018-11-18 12:06:40,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:40,781 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2018-11-18 12:06:40,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 12:06:40,781 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2018-11-18 12:06:40,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:40,781 INFO L225 Difference]: With dead ends: 56 [2018-11-18 12:06:40,781 INFO L226 Difference]: Without dead ends: 56 [2018-11-18 12:06:40,782 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-11-18 12:06:40,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-18 12:06:40,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2018-11-18 12:06:40,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-18 12:06:40,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2018-11-18 12:06:40,785 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 33 [2018-11-18 12:06:40,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:40,785 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2018-11-18 12:06:40,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 12:06:40,785 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2018-11-18 12:06:40,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 12:06:40,786 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:40,786 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] [2018-11-18 12:06:40,786 INFO L423 AbstractCegarLoop]: === Iteration 8 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:40,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:40,786 INFO L82 PathProgramCache]: Analyzing trace with hash -308813391, now seen corresponding path program 1 times [2018-11-18 12:06:40,786 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:40,786 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:40,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:40,787 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:40,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:40,809 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-11-18 12:06:40,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:06:40,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:06:40,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:06:40,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:06:40,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:06:40,810 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 3 states. [2018-11-18 12:06:40,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:40,829 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2018-11-18 12:06:40,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:06:40,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-11-18 12:06:40,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:40,831 INFO L225 Difference]: With dead ends: 53 [2018-11-18 12:06:40,831 INFO L226 Difference]: Without dead ends: 53 [2018-11-18 12:06:40,831 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 12:06:40,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-11-18 12:06:40,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-11-18 12:06:40,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-18 12:06:40,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2018-11-18 12:06:40,834 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 38 [2018-11-18 12:06:40,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:40,834 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2018-11-18 12:06:40,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:06:40,834 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2018-11-18 12:06:40,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 12:06:40,835 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:40,835 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] [2018-11-18 12:06:40,835 INFO L423 AbstractCegarLoop]: === Iteration 9 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:40,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:40,836 INFO L82 PathProgramCache]: Analyzing trace with hash -308813390, now seen corresponding path program 1 times [2018-11-18 12:06:40,836 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:40,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:40,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:40,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:40,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:40,885 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 12:06:40,885 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:40,885 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:40,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:40,942 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:40,949 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 12:06:40,964 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:40,964 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-11-18 12:06:40,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 12:06:40,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 12:06:40,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:06:40,965 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 9 states. [2018-11-18 12:06:40,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:40,995 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2018-11-18 12:06:40,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:06:40,995 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2018-11-18 12:06:40,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:40,996 INFO L225 Difference]: With dead ends: 59 [2018-11-18 12:06:40,996 INFO L226 Difference]: Without dead ends: 59 [2018-11-18 12:06:40,996 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 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 12:06:40,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-18 12:06:40,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2018-11-18 12:06:40,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-11-18 12:06:40,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2018-11-18 12:06:40,999 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 38 [2018-11-18 12:06:40,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:41,000 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2018-11-18 12:06:41,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 12:06:41,000 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2018-11-18 12:06:41,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 12:06:41,000 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:41,001 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] [2018-11-18 12:06:41,001 INFO L423 AbstractCegarLoop]: === Iteration 10 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:41,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:41,001 INFO L82 PathProgramCache]: Analyzing trace with hash 69712507, now seen corresponding path program 2 times [2018-11-18 12:06:41,001 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:41,001 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:41,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:41,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:41,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:41,055 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 12:06:41,056 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:41,056 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:41,070 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 12:06:41,092 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 12:06:41,093 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:41,094 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:41,101 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 12:06:41,101 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 12:06:41,123 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:06:41,123 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-11-18 12:06:41,139 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 12:06:41,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 12:06:41,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2018-11-18 12:06:41,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 12:06:41,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 12:06:41,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:06:41,155 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 11 states. [2018-11-18 12:06:41,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:41,202 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2018-11-18 12:06:41,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 12:06:41,203 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 42 [2018-11-18 12:06:41,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:41,203 INFO L225 Difference]: With dead ends: 62 [2018-11-18 12:06:41,203 INFO L226 Difference]: Without dead ends: 62 [2018-11-18 12:06:41,204 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:06:41,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-11-18 12:06:41,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2018-11-18 12:06:41,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-11-18 12:06:41,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2018-11-18 12:06:41,206 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 42 [2018-11-18 12:06:41,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:41,206 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2018-11-18 12:06:41,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 12:06:41,206 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2018-11-18 12:06:41,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-11-18 12:06:41,207 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:41,207 INFO L375 BasicCegarLoop]: trace histogram [8, 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] [2018-11-18 12:06:41,207 INFO L423 AbstractCegarLoop]: === Iteration 11 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:41,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:41,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1493731579, now seen corresponding path program 1 times [2018-11-18 12:06:41,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:41,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:41,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:41,208 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:41,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:41,260 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 12:06:41,260 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:41,261 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:41,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:41,290 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:41,304 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 12:06:41,328 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:41,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2018-11-18 12:06:41,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 12:06:41,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 12:06:41,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:06:41,329 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 11 states. [2018-11-18 12:06:41,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:41,371 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2018-11-18 12:06:41,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 12:06:41,372 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 55 [2018-11-18 12:06:41,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:41,372 INFO L225 Difference]: With dead ends: 66 [2018-11-18 12:06:41,372 INFO L226 Difference]: Without dead ends: 66 [2018-11-18 12:06:41,373 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 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 12:06:41,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-18 12:06:41,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-11-18 12:06:41,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-18 12:06:41,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2018-11-18 12:06:41,377 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 55 [2018-11-18 12:06:41,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:41,377 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2018-11-18 12:06:41,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 12:06:41,377 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2018-11-18 12:06:41,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 12:06:41,378 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:41,378 INFO L375 BasicCegarLoop]: trace histogram [9, 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] [2018-11-18 12:06:41,378 INFO L423 AbstractCegarLoop]: === Iteration 12 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:41,378 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:41,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1079100590, now seen corresponding path program 2 times [2018-11-18 12:06:41,379 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:41,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:41,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:41,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:41,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:41,454 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 12:06:41,454 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:41,454 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:41,461 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 12:06:41,479 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 12:06:41,479 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:41,480 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:41,488 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 12:06:41,503 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:41,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2018-11-18 12:06:41,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 12:06:41,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 12:06:41,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-11-18 12:06:41,504 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand 12 states. [2018-11-18 12:06:41,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:41,532 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2018-11-18 12:06:41,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 12:06:41,537 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 59 [2018-11-18 12:06:41,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:41,537 INFO L225 Difference]: With dead ends: 70 [2018-11-18 12:06:41,537 INFO L226 Difference]: Without dead ends: 70 [2018-11-18 12:06:41,538 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-11-18 12:06:41,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-18 12:06:41,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2018-11-18 12:06:41,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-18 12:06:41,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2018-11-18 12:06:41,541 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 59 [2018-11-18 12:06:41,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:41,541 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2018-11-18 12:06:41,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 12:06:41,541 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2018-11-18 12:06:41,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-18 12:06:41,542 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:41,542 INFO L375 BasicCegarLoop]: trace histogram [10, 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] [2018-11-18 12:06:41,542 INFO L423 AbstractCegarLoop]: === Iteration 13 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:41,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:41,542 INFO L82 PathProgramCache]: Analyzing trace with hash 485812777, now seen corresponding path program 3 times [2018-11-18 12:06:41,542 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:41,542 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:41,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:41,543 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:41,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:41,665 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 12:06:41,665 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:41,665 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:41,675 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 12:06:41,692 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-18 12:06:41,692 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:41,694 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:41,774 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2018-11-18 12:06:41,798 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:41,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 4] total 14 [2018-11-18 12:06:41,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 12:06:41,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 12:06:41,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2018-11-18 12:06:41,799 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 14 states. [2018-11-18 12:06:41,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:41,853 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2018-11-18 12:06:41,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 12:06:41,854 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 63 [2018-11-18 12:06:41,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:41,855 INFO L225 Difference]: With dead ends: 82 [2018-11-18 12:06:41,855 INFO L226 Difference]: Without dead ends: 82 [2018-11-18 12:06:41,855 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2018-11-18 12:06:41,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-11-18 12:06:41,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2018-11-18 12:06:41,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-11-18 12:06:41,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2018-11-18 12:06:41,858 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 63 [2018-11-18 12:06:41,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:41,858 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2018-11-18 12:06:41,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 12:06:41,858 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2018-11-18 12:06:41,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-11-18 12:06:41,859 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:41,859 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] [2018-11-18 12:06:41,859 INFO L423 AbstractCegarLoop]: === Iteration 14 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:41,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:41,860 INFO L82 PathProgramCache]: Analyzing trace with hash -2044426282, now seen corresponding path program 4 times [2018-11-18 12:06:41,860 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:41,860 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:41,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:41,860 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:41,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:41,892 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 12:06:41,892 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:41,892 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:41,903 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-18 12:06:41,948 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-18 12:06:41,948 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:41,951 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:41,981 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 12:06:42,006 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:42,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-11-18 12:06:42,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:06:42,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:06:42,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:06:42,007 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 6 states. [2018-11-18 12:06:42,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:42,027 INFO L93 Difference]: Finished difference Result 88 states and 89 transitions. [2018-11-18 12:06:42,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 12:06:42,028 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 73 [2018-11-18 12:06:42,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:42,029 INFO L225 Difference]: With dead ends: 88 [2018-11-18 12:06:42,029 INFO L226 Difference]: Without dead ends: 88 [2018-11-18 12:06:42,029 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 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 12:06:42,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-11-18 12:06:42,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2018-11-18 12:06:42,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-11-18 12:06:42,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2018-11-18 12:06:42,033 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 73 [2018-11-18 12:06:42,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:42,033 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2018-11-18 12:06:42,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:06:42,034 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2018-11-18 12:06:42,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-11-18 12:06:42,034 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:42,035 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] [2018-11-18 12:06:42,035 INFO L423 AbstractCegarLoop]: === Iteration 15 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:42,035 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:42,035 INFO L82 PathProgramCache]: Analyzing trace with hash -2035736148, now seen corresponding path program 5 times [2018-11-18 12:06:42,035 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:42,035 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:42,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:42,036 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:42,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:42,107 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 12:06:42,108 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:42,108 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:42,120 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-18 12:06:42,197 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2018-11-18 12:06:42,197 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:42,199 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:42,218 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 12:06:42,235 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:42,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-18 12:06:42,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:06:42,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:06:42,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:06:42,236 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand 7 states. [2018-11-18 12:06:42,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:42,250 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2018-11-18 12:06:42,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 12:06:42,251 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2018-11-18 12:06:42,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:42,251 INFO L225 Difference]: With dead ends: 94 [2018-11-18 12:06:42,251 INFO L226 Difference]: Without dead ends: 94 [2018-11-18 12:06:42,251 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 79 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 12:06:42,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-11-18 12:06:42,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2018-11-18 12:06:42,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-11-18 12:06:42,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 91 transitions. [2018-11-18 12:06:42,254 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 91 transitions. Word has length 79 [2018-11-18 12:06:42,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:42,254 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 91 transitions. [2018-11-18 12:06:42,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:06:42,255 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 91 transitions. [2018-11-18 12:06:42,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-18 12:06:42,256 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:42,256 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] [2018-11-18 12:06:42,257 INFO L423 AbstractCegarLoop]: === Iteration 16 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:42,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:42,257 INFO L82 PathProgramCache]: Analyzing trace with hash -435387646, now seen corresponding path program 6 times [2018-11-18 12:06:42,257 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:42,257 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:42,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:42,257 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:42,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:42,308 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 12:06:42,308 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:42,308 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:42,320 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-11-18 12:06:42,453 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2018-11-18 12:06:42,453 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:42,455 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:42,480 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 12:06:42,495 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:42,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2018-11-18 12:06:42,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 12:06:42,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 12:06:42,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:06:42,496 INFO L87 Difference]: Start difference. First operand 90 states and 91 transitions. Second operand 8 states. [2018-11-18 12:06:42,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:42,516 INFO L93 Difference]: Finished difference Result 100 states and 101 transitions. [2018-11-18 12:06:42,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:06:42,517 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2018-11-18 12:06:42,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:42,517 INFO L225 Difference]: With dead ends: 100 [2018-11-18 12:06:42,517 INFO L226 Difference]: Without dead ends: 100 [2018-11-18 12:06:42,517 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:06:42,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-11-18 12:06:42,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2018-11-18 12:06:42,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-11-18 12:06:42,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 97 transitions. [2018-11-18 12:06:42,519 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 97 transitions. Word has length 85 [2018-11-18 12:06:42,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:42,519 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 97 transitions. [2018-11-18 12:06:42,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 12:06:42,519 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 97 transitions. [2018-11-18 12:06:42,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-11-18 12:06:42,520 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:42,520 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] [2018-11-18 12:06:42,520 INFO L423 AbstractCegarLoop]: === Iteration 17 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:42,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:42,520 INFO L82 PathProgramCache]: Analyzing trace with hash -251982888, now seen corresponding path program 7 times [2018-11-18 12:06:42,520 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:42,520 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:42,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:42,521 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:42,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:42,569 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 12:06:42,570 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:42,570 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:42,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:42,601 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:42,610 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 12:06:42,625 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:42,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-11-18 12:06:42,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 12:06:42,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 12:06:42,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:06:42,626 INFO L87 Difference]: Start difference. First operand 96 states and 97 transitions. Second operand 9 states. [2018-11-18 12:06:42,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:42,649 INFO L93 Difference]: Finished difference Result 106 states and 107 transitions. [2018-11-18 12:06:42,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:06:42,650 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2018-11-18 12:06:42,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:42,650 INFO L225 Difference]: With dead ends: 106 [2018-11-18 12:06:42,650 INFO L226 Difference]: Without dead ends: 106 [2018-11-18 12:06:42,650 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 91 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 12:06:42,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-11-18 12:06:42,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2018-11-18 12:06:42,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-11-18 12:06:42,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 103 transitions. [2018-11-18 12:06:42,652 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 103 transitions. Word has length 91 [2018-11-18 12:06:42,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:42,652 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 103 transitions. [2018-11-18 12:06:42,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 12:06:42,652 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 103 transitions. [2018-11-18 12:06:42,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-11-18 12:06:42,653 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:42,653 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] [2018-11-18 12:06:42,653 INFO L423 AbstractCegarLoop]: === Iteration 18 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:42,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:42,653 INFO L82 PathProgramCache]: Analyzing trace with hash 425270318, now seen corresponding path program 8 times [2018-11-18 12:06:42,653 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:42,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:42,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:42,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:42,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:42,715 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 12:06:42,715 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:42,715 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:42,721 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 12:06:42,742 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 12:06:42,743 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:42,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:42,761 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 12:06:42,776 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:42,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2018-11-18 12:06:42,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 12:06:42,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 12:06:42,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:06:42,777 INFO L87 Difference]: Start difference. First operand 102 states and 103 transitions. Second operand 10 states. [2018-11-18 12:06:42,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:42,807 INFO L93 Difference]: Finished difference Result 112 states and 113 transitions. [2018-11-18 12:06:42,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 12:06:42,807 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 97 [2018-11-18 12:06:42,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:42,808 INFO L225 Difference]: With dead ends: 112 [2018-11-18 12:06:42,808 INFO L226 Difference]: Without dead ends: 112 [2018-11-18 12:06:42,808 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:06:42,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-11-18 12:06:42,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108. [2018-11-18 12:06:42,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-11-18 12:06:42,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 109 transitions. [2018-11-18 12:06:42,810 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 109 transitions. Word has length 97 [2018-11-18 12:06:42,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:42,810 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 109 transitions. [2018-11-18 12:06:42,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 12:06:42,810 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 109 transitions. [2018-11-18 12:06:42,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-11-18 12:06:42,811 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:42,811 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 8, 7, 7, 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 12:06:42,812 INFO L423 AbstractCegarLoop]: === Iteration 19 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:42,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:42,812 INFO L82 PathProgramCache]: Analyzing trace with hash 742593540, now seen corresponding path program 9 times [2018-11-18 12:06:42,812 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:42,812 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:42,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:42,813 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:42,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:42,864 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 12:06:42,864 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:42,864 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:42,882 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 12:06:42,980 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2018-11-18 12:06:42,980 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:42,982 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:42,993 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 12:06:43,009 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:43,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2018-11-18 12:06:43,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 12:06:43,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 12:06:43,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:06:43,010 INFO L87 Difference]: Start difference. First operand 108 states and 109 transitions. Second operand 11 states. [2018-11-18 12:06:43,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:43,044 INFO L93 Difference]: Finished difference Result 118 states and 119 transitions. [2018-11-18 12:06:43,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 12:06:43,049 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2018-11-18 12:06:43,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:43,049 INFO L225 Difference]: With dead ends: 118 [2018-11-18 12:06:43,049 INFO L226 Difference]: Without dead ends: 118 [2018-11-18 12:06:43,049 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 103 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 12:06:43,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-11-18 12:06:43,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2018-11-18 12:06:43,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-11-18 12:06:43,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 115 transitions. [2018-11-18 12:06:43,052 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 115 transitions. Word has length 103 [2018-11-18 12:06:43,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:43,052 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 115 transitions. [2018-11-18 12:06:43,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 12:06:43,052 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 115 transitions. [2018-11-18 12:06:43,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-11-18 12:06:43,053 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:43,053 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 9, 8, 8, 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 12:06:43,053 INFO L423 AbstractCegarLoop]: === Iteration 20 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:43,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:43,053 INFO L82 PathProgramCache]: Analyzing trace with hash 135091034, now seen corresponding path program 10 times [2018-11-18 12:06:43,054 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:43,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:43,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:43,054 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:43,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:43,139 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 184 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 12:06:43,139 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:43,140 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:43,148 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-18 12:06:43,404 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-18 12:06:43,404 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:43,406 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:43,427 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 184 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 12:06:43,443 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:43,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2018-11-18 12:06:43,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 12:06:43,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 12:06:43,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-11-18 12:06:43,443 INFO L87 Difference]: Start difference. First operand 114 states and 115 transitions. Second operand 12 states. [2018-11-18 12:06:43,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:43,477 INFO L93 Difference]: Finished difference Result 124 states and 125 transitions. [2018-11-18 12:06:43,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 12:06:43,478 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 109 [2018-11-18 12:06:43,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:43,478 INFO L225 Difference]: With dead ends: 124 [2018-11-18 12:06:43,478 INFO L226 Difference]: Without dead ends: 124 [2018-11-18 12:06:43,479 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-11-18 12:06:43,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-11-18 12:06:43,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 120. [2018-11-18 12:06:43,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-11-18 12:06:43,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 121 transitions. [2018-11-18 12:06:43,481 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 121 transitions. Word has length 109 [2018-11-18 12:06:43,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:43,481 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 121 transitions. [2018-11-18 12:06:43,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 12:06:43,481 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 121 transitions. [2018-11-18 12:06:43,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-11-18 12:06:43,482 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:43,482 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:06:43,482 INFO L423 AbstractCegarLoop]: === Iteration 21 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:43,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:43,482 INFO L82 PathProgramCache]: Analyzing trace with hash -767280592, now seen corresponding path program 11 times [2018-11-18 12:06:43,482 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:43,482 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:43,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:43,483 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:43,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:43,542 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 12:06:43,542 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:43,543 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/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 12:06:43,548 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-18 12:06:44,936 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2018-11-18 12:06:44,936 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:44,940 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:44,967 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-18 12:06:44,986 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:44,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2018-11-18 12:06:44,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 12:06:44,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 12:06:44,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-11-18 12:06:44,987 INFO L87 Difference]: Start difference. First operand 120 states and 121 transitions. Second operand 13 states. [2018-11-18 12:06:45,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:45,021 INFO L93 Difference]: Finished difference Result 126 states and 127 transitions. [2018-11-18 12:06:45,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 12:06:45,022 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 115 [2018-11-18 12:06:45,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:45,022 INFO L225 Difference]: With dead ends: 126 [2018-11-18 12:06:45,022 INFO L226 Difference]: Without dead ends: 126 [2018-11-18 12:06:45,023 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 115 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 12:06:45,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-11-18 12:06:45,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-11-18 12:06:45,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-11-18 12:06:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 127 transitions. [2018-11-18 12:06:45,025 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 127 transitions. Word has length 115 [2018-11-18 12:06:45,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:45,025 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 127 transitions. [2018-11-18 12:06:45,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 12:06:45,025 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 127 transitions. [2018-11-18 12:06:45,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-11-18 12:06:45,026 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:45,026 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:06:45,026 INFO L423 AbstractCegarLoop]: === Iteration 22 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 12:06:45,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:45,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1381226362, now seen corresponding path program 12 times [2018-11-18 12:06:45,027 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:45,027 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:45,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:45,027 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:45,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:45,143 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:06:45,165 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 46 could not be translated for associated CType ARRAY#_10_~INT# [2018-11-18 12:06:45,166 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 45 could not be translated for associated CType ARRAY#_10_~INT# [2018-11-18 12:06:45,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:06:45 BoogieIcfgContainer [2018-11-18 12:06:45,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:06:45,183 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:06:45,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:06:45,184 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:06:45,184 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:06:38" (3/4) ... [2018-11-18 12:06:45,186 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 12:06:45,191 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 45 could not be translated for associated CType ARRAY#_10_~INT# [2018-11-18 12:06:45,191 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 46 could not be translated for associated CType ARRAY#_10_~INT# [2018-11-18 12:06:45,239 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_147f6996-c6c5-4d30-8ffe-db0963759a44/bin-2019/uautomizer/witness.graphml [2018-11-18 12:06:45,239 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:06:45,240 INFO L168 Benchmark]: Toolchain (without parser) took 6928.83 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 344.5 MB). Free memory was 959.1 MB in the beginning and 1.3 GB in the end (delta: -351.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:06:45,241 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:06:45,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.35 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:45,242 INFO L168 Benchmark]: Boogie Preprocessor took 20.68 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:45,242 INFO L168 Benchmark]: RCFGBuilder took 223.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -212.4 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:45,242 INFO L168 Benchmark]: TraceAbstraction took 6472.85 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 164.6 MB). Free memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: -160.1 MB). Peak memory consumption was 4.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:45,242 INFO L168 Benchmark]: Witness Printer took 56.02 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:45,244 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.35 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.68 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 223.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -212.4 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6472.85 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 164.6 MB). Free memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: -160.1 MB). Peak memory consumption was 4.5 MB. Max. memory is 11.5 GB. * Witness Printer took 56.02 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 46 could not be translated for associated CType ARRAY#_10_~INT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 45 could not be translated for associated CType ARRAY#_10_~INT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 45 could not be translated for associated CType ARRAY#_10_~INT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 46 could not be translated for associated CType ARRAY#_10_~INT# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 26]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1] FCALL int array[10]; VAL [\old(array)=null, \old(array)=null, array={42:0}] [L25] CALL, EXPR getNumbers2() VAL [array={42:0}] [L13] CALL, EXPR getNumbers() VAL [array={42:0}] [L5] int i = 0; VAL [array={42:0}, i=0] [L5] COND TRUE i < 10 VAL [array={42:0}, i=0] [L6] FCALL array[i] = i VAL [array={42:0}, i=0] [L5] ++i VAL [array={42:0}, i=1] [L5] COND TRUE i < 10 VAL [array={42:0}, i=1] [L6] FCALL array[i] = i VAL [array={42:0}, i=1] [L5] ++i VAL [array={42:0}, i=2] [L5] COND TRUE i < 10 VAL [array={42:0}, i=2] [L6] FCALL array[i] = i VAL [array={42:0}, i=2] [L5] ++i VAL [array={42:0}, i=3] [L5] COND TRUE i < 10 VAL [array={42:0}, i=3] [L6] FCALL array[i] = i VAL [array={42:0}, i=3] [L5] ++i VAL [array={42:0}, i=4] [L5] COND TRUE i < 10 VAL [array={42:0}, i=4] [L6] FCALL array[i] = i VAL [array={42:0}, i=4] [L5] ++i VAL [array={42:0}, i=5] [L5] COND TRUE i < 10 VAL [array={42:0}, i=5] [L6] FCALL array[i] = i VAL [array={42:0}, i=5] [L5] ++i VAL [array={42:0}, i=6] [L5] COND TRUE i < 10 VAL [array={42:0}, i=6] [L6] FCALL array[i] = i VAL [array={42:0}, i=6] [L5] ++i VAL [array={42:0}, i=7] [L5] COND TRUE i < 10 VAL [array={42:0}, i=7] [L6] FCALL array[i] = i VAL [array={42:0}, i=7] [L5] ++i VAL [array={42:0}, i=8] [L5] COND TRUE i < 10 VAL [array={42:0}, i=8] [L6] FCALL array[i] = i VAL [array={42:0}, i=8] [L5] ++i VAL [array={42:0}, i=9] [L5] COND TRUE i < 10 VAL [array={42:0}, i=9] [L6] FCALL array[i] = i VAL [array={42:0}, i=9] [L5] ++i VAL [array={42:0}, i=10] [L5] COND FALSE !(i < 10) VAL [array={42:0}, i=10] [L9] RET return array; VAL [\result={42:0}, array={42:0}, i=10] [L13] EXPR getNumbers() VAL [array={42:0}, getNumbers()={42:0}] [L13] int* numbers = getNumbers(); [L15] FCALL int numbers2[10]; [L17] int i = 0; VAL [array={42:0}, i=0, numbers={42:0}, numbers2={43:0}] [L17] COND TRUE i < 10 VAL [array={42:0}, i=0, numbers={42:0}, numbers2={43:0}] [L18] EXPR, FCALL numbers[i] VAL [array={42:0}, i=0, numbers={42:0}, numbers2={43:0}, numbers[i]=0] [L18] FCALL numbers2[i] = numbers[i] VAL [array={42:0}, i=0, numbers={42:0}, numbers2={43:0}, numbers[i]=0] [L17] ++i VAL [array={42:0}, i=1, numbers={42:0}, numbers2={43:0}] [L17] COND TRUE i < 10 VAL [array={42:0}, i=1, numbers={42:0}, numbers2={43:0}] [L18] EXPR, FCALL numbers[i] VAL [array={42:0}, i=1, numbers={42:0}, numbers2={43:0}, numbers[i]=1] [L18] FCALL numbers2[i] = numbers[i] VAL [array={42:0}, i=1, numbers={42:0}, numbers2={43:0}, numbers[i]=1] [L17] ++i VAL [array={42:0}, i=2, numbers={42:0}, numbers2={43:0}] [L17] COND TRUE i < 10 VAL [array={42:0}, i=2, numbers={42:0}, numbers2={43:0}] [L18] EXPR, FCALL numbers[i] VAL [array={42:0}, i=2, numbers={42:0}, numbers2={43:0}, numbers[i]=2] [L18] FCALL numbers2[i] = numbers[i] VAL [array={42:0}, i=2, numbers={42:0}, numbers2={43:0}, numbers[i]=2] [L17] ++i VAL [array={42:0}, i=3, numbers={42:0}, numbers2={43:0}] [L17] COND TRUE i < 10 VAL [array={42:0}, i=3, numbers={42:0}, numbers2={43:0}] [L18] EXPR, FCALL numbers[i] VAL [array={42:0}, i=3, numbers={42:0}, numbers2={43:0}, numbers[i]=3] [L18] FCALL numbers2[i] = numbers[i] VAL [array={42:0}, i=3, numbers={42:0}, numbers2={43:0}, numbers[i]=3] [L17] ++i VAL [array={42:0}, i=4, numbers={42:0}, numbers2={43:0}] [L17] COND TRUE i < 10 VAL [array={42:0}, i=4, numbers={42:0}, numbers2={43:0}] [L18] EXPR, FCALL numbers[i] VAL [array={42:0}, i=4, numbers={42:0}, numbers2={43:0}, numbers[i]=4] [L18] FCALL numbers2[i] = numbers[i] VAL [array={42:0}, i=4, numbers={42:0}, numbers2={43:0}, numbers[i]=4] [L17] ++i VAL [array={42:0}, i=5, numbers={42:0}, numbers2={43:0}] [L17] COND TRUE i < 10 VAL [array={42:0}, i=5, numbers={42:0}, numbers2={43:0}] [L18] EXPR, FCALL numbers[i] VAL [array={42:0}, i=5, numbers={42:0}, numbers2={43:0}, numbers[i]=5] [L18] FCALL numbers2[i] = numbers[i] VAL [array={42:0}, i=5, numbers={42:0}, numbers2={43:0}, numbers[i]=5] [L17] ++i VAL [array={42:0}, i=6, numbers={42:0}, numbers2={43:0}] [L17] COND TRUE i < 10 VAL [array={42:0}, i=6, numbers={42:0}, numbers2={43:0}] [L18] EXPR, FCALL numbers[i] VAL [array={42:0}, i=6, numbers={42:0}, numbers2={43:0}, numbers[i]=6] [L18] FCALL numbers2[i] = numbers[i] VAL [array={42:0}, i=6, numbers={42:0}, numbers2={43:0}, numbers[i]=6] [L17] ++i VAL [array={42:0}, i=7, numbers={42:0}, numbers2={43:0}] [L17] COND TRUE i < 10 VAL [array={42:0}, i=7, numbers={42:0}, numbers2={43:0}] [L18] EXPR, FCALL numbers[i] VAL [array={42:0}, i=7, numbers={42:0}, numbers2={43:0}, numbers[i]=7] [L18] FCALL numbers2[i] = numbers[i] VAL [array={42:0}, i=7, numbers={42:0}, numbers2={43:0}, numbers[i]=7] [L17] ++i VAL [array={42:0}, i=8, numbers={42:0}, numbers2={43:0}] [L17] COND TRUE i < 10 VAL [array={42:0}, i=8, numbers={42:0}, numbers2={43:0}] [L18] EXPR, FCALL numbers[i] VAL [array={42:0}, i=8, numbers={42:0}, numbers2={43:0}, numbers[i]=8] [L18] FCALL numbers2[i] = numbers[i] VAL [array={42:0}, i=8, numbers={42:0}, numbers2={43:0}, numbers[i]=8] [L17] ++i VAL [array={42:0}, i=9, numbers={42:0}, numbers2={43:0}] [L17] COND TRUE i < 10 VAL [array={42:0}, i=9, numbers={42:0}, numbers2={43:0}] [L18] EXPR, FCALL numbers[i] VAL [array={42:0}, i=9, numbers={42:0}, numbers2={43:0}, numbers[i]=9] [L18] FCALL numbers2[i] = numbers[i] VAL [array={42:0}, i=9, numbers={42:0}, numbers2={43:0}, numbers[i]=9] [L17] ++i VAL [array={42:0}, i=10, numbers={42:0}, numbers2={43:0}] [L17] COND FALSE !(i < 10) VAL [array={42:0}, i=10, numbers={42:0}, numbers2={43:0}] [L21] return numbers2; [L21] RET return numbers2; VAL [\result={43:0}, array={42:0}, i=10, numbers={42:0}] [L25] EXPR getNumbers2() VAL [array={42:0}, getNumbers2()={43:0}] [L25] int *numbers = getNumbers2(); [L26] FCALL numbers[0] = 100 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 9 error locations. UNSAFE Result, 6.4s OverallTime, 22 OverallIterations, 11 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 602 SDtfs, 472 SDslu, 2477 SDs, 0 SdLazy, 910 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1272 GetRequests, 1115 SyntacticMatches, 4 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 21 MinimizatonAttempts, 51 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 2430 NumberOfCodeBlocks, 2330 NumberOfCodeBlocksAsserted, 79 NumberOfCheckSat, 2271 ConstructedInterpolants, 6 QuantifiedInterpolants, 368947 SizeOfPredicates, 25 NumberOfNonLiveVariables, 3263 ConjunctsInSsa, 148 ConjunctsInUnsatCore, 38 InterpolantComputations, 7 PerfectInterpolantSequences, 3537/6021 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...