./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/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 60fa12f4a8e344f82de5faf31b8f2cbfbaaacd93 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 04:18:53,102 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 04:18:53,103 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 04:18:53,111 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 04:18:53,111 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 04:18:53,112 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 04:18:53,113 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 04:18:53,114 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 04:18:53,115 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 04:18:53,116 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 04:18:53,116 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 04:18:53,117 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 04:18:53,117 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 04:18:53,118 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 04:18:53,119 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 04:18:53,119 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 04:18:53,120 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 04:18:53,121 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 04:18:53,122 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 04:18:53,123 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 04:18:53,124 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 04:18:53,125 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 04:18:53,126 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 04:18:53,127 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 04:18:53,127 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 04:18:53,128 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 04:18:53,128 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 04:18:53,129 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 04:18:53,129 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 04:18:53,130 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 04:18:53,130 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 04:18:53,131 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 04:18:53,131 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 04:18:53,131 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 04:18:53,131 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 04:18:53,132 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 04:18:53,132 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-12-02 04:18:53,140 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 04:18:53,140 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 04:18:53,140 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 04:18:53,140 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 04:18:53,141 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 04:18:53,141 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 04:18:53,141 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 04:18:53,141 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 04:18:53,141 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 04:18:53,141 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 04:18:53,141 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 04:18:53,141 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 04:18:53,141 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 04:18:53,141 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 04:18:53,141 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 04:18:53,142 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 04:18:53,142 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 04:18:53,142 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 04:18:53,142 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 04:18:53,142 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 04:18:53,142 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 04:18:53,142 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 04:18:53,142 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 04:18:53,142 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 04:18:53,142 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 04:18:53,142 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 04:18:53,142 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 04:18:53,143 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 04:18:53,143 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_86545965-8632-4579-a2bf-1c286f705241/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 -> 60fa12f4a8e344f82de5faf31b8f2cbfbaaacd93 [2018-12-02 04:18:53,160 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 04:18:53,168 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 04:18:53,170 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 04:18:53,170 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 04:18:53,171 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 04:18:53,171 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-12-02 04:18:53,207 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/bin-2019/uautomizer/data/dfd20f8a9/15f74c23378a438b8d86a2de196f90a6/FLAGf4c538431 [2018-12-02 04:18:53,686 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 04:18:53,687 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-12-02 04:18:53,690 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/bin-2019/uautomizer/data/dfd20f8a9/15f74c23378a438b8d86a2de196f90a6/FLAGf4c538431 [2018-12-02 04:18:53,699 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/bin-2019/uautomizer/data/dfd20f8a9/15f74c23378a438b8d86a2de196f90a6 [2018-12-02 04:18:53,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 04:18:53,701 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-02 04:18:53,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 04:18:53,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 04:18:53,704 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 04:18:53,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:18:53" (1/1) ... [2018-12-02 04:18:53,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7a2c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:53, skipping insertion in model container [2018-12-02 04:18:53,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:18:53" (1/1) ... [2018-12-02 04:18:53,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 04:18:53,719 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 04:18:53,805 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 04:18:53,812 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 04:18:53,821 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 04:18:53,832 INFO L195 MainTranslator]: Completed translation [2018-12-02 04:18:53,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:53 WrapperNode [2018-12-02 04:18:53,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 04:18:53,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 04:18:53,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 04:18:53,833 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 04:18:53,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:53" (1/1) ... [2018-12-02 04:18:53,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:53" (1/1) ... [2018-12-02 04:18:53,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:53" (1/1) ... [2018-12-02 04:18:53,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:53" (1/1) ... [2018-12-02 04:18:53,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:53" (1/1) ... [2018-12-02 04:18:53,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:53" (1/1) ... [2018-12-02 04:18:53,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:53" (1/1) ... [2018-12-02 04:18:53,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 04:18:53,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 04:18:53,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 04:18:53,883 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 04:18:53,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/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 [2018-12-02 04:18:53,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 04:18:53,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 04:18:53,917 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-12-02 04:18:53,917 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 04:18:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2018-12-02 04:18:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-12-02 04:18:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 04:18:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 04:18:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 04:18:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 04:18:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 04:18:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 04:18:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 04:18:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 04:18:54,030 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 04:18:54,030 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 04:18:54,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:18:54 BoogieIcfgContainer [2018-12-02 04:18:54,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 04:18:54,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 04:18:54,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 04:18:54,034 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 04:18:54,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:18:53" (1/3) ... [2018-12-02 04:18:54,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df75f95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:18:54, skipping insertion in model container [2018-12-02 04:18:54,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:18:53" (2/3) ... [2018-12-02 04:18:54,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df75f95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:18:54, skipping insertion in model container [2018-12-02 04:18:54,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:18:54" (3/3) ... [2018-12-02 04:18:54,037 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers1_true-valid-memsafety.c [2018-12-02 04:18:54,043 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 04:18:54,048 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-12-02 04:18:54,058 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-12-02 04:18:54,074 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 04:18:54,074 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 04:18:54,074 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-02 04:18:54,075 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 04:18:54,075 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 04:18:54,075 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 04:18:54,075 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 04:18:54,075 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 04:18:54,075 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 04:18:54,084 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-12-02 04:18:54,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 04:18:54,089 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:18:54,090 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:18:54,091 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-02 04:18:54,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:18:54,095 INFO L82 PathProgramCache]: Analyzing trace with hash 543879226, now seen corresponding path program 1 times [2018-12-02 04:18:54,096 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:18:54,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:18:54,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:18:54,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:18:54,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:18:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:18:54,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:18:54,204 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:18:54,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 04:18:54,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 04:18:54,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 04:18:54,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 04:18:54,216 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2018-12-02 04:18:54,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:18:54,234 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-12-02 04:18:54,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 04:18:54,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-02 04:18:54,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:18:54,240 INFO L225 Difference]: With dead ends: 26 [2018-12-02 04:18:54,240 INFO L226 Difference]: Without dead ends: 21 [2018-12-02 04:18:54,241 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 04:18:54,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-02 04:18:54,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-12-02 04:18:54,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-02 04:18:54,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-12-02 04:18:54,261 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 9 [2018-12-02 04:18:54,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:18:54,261 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-12-02 04:18:54,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 04:18:54,261 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-12-02 04:18:54,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 04:18:54,261 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:18:54,261 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:18:54,262 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-02 04:18:54,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:18:54,262 INFO L82 PathProgramCache]: Analyzing trace with hash 543879227, now seen corresponding path program 1 times [2018-12-02 04:18:54,262 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:18:54,262 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:18:54,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:18:54,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:18:54,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:18:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:18:54,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:18:54,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:18:54,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 04:18:54,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 04:18:54,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 04:18:54,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 04:18:54,313 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 4 states. [2018-12-02 04:18:54,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:18:54,345 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-12-02 04:18:54,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 04:18:54,345 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-12-02 04:18:54,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:18:54,346 INFO L225 Difference]: With dead ends: 24 [2018-12-02 04:18:54,346 INFO L226 Difference]: Without dead ends: 24 [2018-12-02 04:18:54,347 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 04:18:54,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-02 04:18:54,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2018-12-02 04:18:54,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-02 04:18:54,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-12-02 04:18:54,350 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 9 [2018-12-02 04:18:54,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:18:54,350 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-12-02 04:18:54,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 04:18:54,350 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-12-02 04:18:54,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-02 04:18:54,350 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:18:54,350 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:18:54,350 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-02 04:18:54,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:18:54,351 INFO L82 PathProgramCache]: Analyzing trace with hash 2089391026, now seen corresponding path program 1 times [2018-12-02 04:18:54,351 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:18:54,351 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:18:54,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:18:54,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:18:54,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:18:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:18:54,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:18:54,415 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 04:18:54,415 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/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 [2018-12-02 04:18:54,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:18:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:18:54,444 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:18:54,477 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-02 04:18:54,480 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:18:54,481 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:18:54,482 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-02 04:18:54,483 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 04:18:54,488 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:18:54,495 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-12-02 04:18:54,504 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-12-02 04:18:54,504 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 04:18:54,506 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:18:54,509 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:18:54,510 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:24, output treesize:14 [2018-12-02 04:18:54,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:18:54,570 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 04:18:54,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-12-02 04:18:54,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 04:18:54,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 04:18:54,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-02 04:18:54,571 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 8 states. [2018-12-02 04:18:54,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:18:54,607 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2018-12-02 04:18:54,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 04:18:54,608 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2018-12-02 04:18:54,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:18:54,608 INFO L225 Difference]: With dead ends: 27 [2018-12-02 04:18:54,608 INFO L226 Difference]: Without dead ends: 27 [2018-12-02 04:18:54,608 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-02 04:18:54,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-02 04:18:54,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-12-02 04:18:54,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-12-02 04:18:54,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-12-02 04:18:54,610 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 12 [2018-12-02 04:18:54,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:18:54,611 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-12-02 04:18:54,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 04:18:54,611 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-12-02 04:18:54,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 04:18:54,611 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:18:54,611 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:18:54,611 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-02 04:18:54,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:18:54,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1912985381, now seen corresponding path program 2 times [2018-12-02 04:18:54,612 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:18:54,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:18:54,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:18:54,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:18:54,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:18:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:18:54,677 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:18:54,677 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 04:18:54,677 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/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 [2018-12-02 04:18:54,683 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-02 04:18:54,694 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-02 04:18:54,694 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 04:18:54,696 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:18:54,699 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-02 04:18:54,701 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:18:54,702 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:18:54,703 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-02 04:18:54,703 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 04:18:54,710 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:18:54,716 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-12-02 04:18:54,725 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-12-02 04:18:54,726 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 04:18:54,727 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:18:54,730 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:18:54,731 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:24, output treesize:14 [2018-12-02 04:18:54,792 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:18:54,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 04:18:54,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2018-12-02 04:18:54,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-02 04:18:54,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-02 04:18:54,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-12-02 04:18:54,808 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 12 states. [2018-12-02 04:18:54,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:18:54,943 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2018-12-02 04:18:54,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 04:18:54,944 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2018-12-02 04:18:54,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:18:54,944 INFO L225 Difference]: With dead ends: 30 [2018-12-02 04:18:54,944 INFO L226 Difference]: Without dead ends: 30 [2018-12-02 04:18:54,945 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2018-12-02 04:18:54,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-02 04:18:54,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-12-02 04:18:54,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-02 04:18:54,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2018-12-02 04:18:54,948 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 15 [2018-12-02 04:18:54,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:18:54,949 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2018-12-02 04:18:54,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-02 04:18:54,949 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2018-12-02 04:18:54,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 04:18:54,949 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:18:54,950 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:18:54,950 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-02 04:18:54,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:18:54,950 INFO L82 PathProgramCache]: Analyzing trace with hash -149204609, now seen corresponding path program 1 times [2018-12-02 04:18:54,950 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:18:54,950 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:18:54,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:18:54,951 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 04:18:54,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:18:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:18:54,995 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-02 04:18:54,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:18:54,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 04:18:54,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 04:18:54,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 04:18:54,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-02 04:18:54,996 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 6 states. [2018-12-02 04:18:55,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:18:55,023 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2018-12-02 04:18:55,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 04:18:55,024 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-12-02 04:18:55,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:18:55,024 INFO L225 Difference]: With dead ends: 29 [2018-12-02 04:18:55,024 INFO L226 Difference]: Without dead ends: 29 [2018-12-02 04:18:55,024 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-12-02 04:18:55,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-12-02 04:18:55,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-12-02 04:18:55,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-12-02 04:18:55,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-12-02 04:18:55,026 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 26 [2018-12-02 04:18:55,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:18:55,027 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-12-02 04:18:55,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 04:18:55,027 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-12-02 04:18:55,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 04:18:55,027 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:18:55,027 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:18:55,027 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-02 04:18:55,028 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:18:55,028 INFO L82 PathProgramCache]: Analyzing trace with hash -149204608, now seen corresponding path program 1 times [2018-12-02 04:18:55,028 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:18:55,028 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:18:55,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:18:55,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:18:55,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:18:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:18:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:18:55,075 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 04:18:55,075 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/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 [2018-12-02 04:18:55,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:18:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:18:55,097 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:18:55,104 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:18:55,119 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 04:18:55,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2018-12-02 04:18:55,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 04:18:55,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 04:18:55,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-02 04:18:55,120 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 8 states. [2018-12-02 04:18:55,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:18:55,139 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-12-02 04:18:55,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 04:18:55,140 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2018-12-02 04:18:55,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:18:55,140 INFO L225 Difference]: With dead ends: 34 [2018-12-02 04:18:55,140 INFO L226 Difference]: Without dead ends: 34 [2018-12-02 04:18:55,141 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-02 04:18:55,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-02 04:18:55,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2018-12-02 04:18:55,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-02 04:18:55,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-12-02 04:18:55,143 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 26 [2018-12-02 04:18:55,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:18:55,143 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-12-02 04:18:55,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 04:18:55,143 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-12-02 04:18:55,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-02 04:18:55,143 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:18:55,143 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:18:55,144 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-02 04:18:55,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:18:55,144 INFO L82 PathProgramCache]: Analyzing trace with hash -578344215, now seen corresponding path program 2 times [2018-12-02 04:18:55,144 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:18:55,144 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:18:55,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:18:55,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:18:55,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:18:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:18:55,195 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:18:55,195 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 04:18:55,195 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/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 [2018-12-02 04:18:55,201 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-02 04:18:55,210 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-12-02 04:18:55,210 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 04:18:55,212 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:18:55,216 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-12-02 04:18:55,221 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-12-02 04:18:55,222 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 04:18:55,223 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:18:55,229 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-02 04:18:55,231 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:18:55,232 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-02 04:18:55,232 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 04:18:55,237 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:18:55,241 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:18:55,242 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:24, output treesize:14 [2018-12-02 04:18:55,314 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-12-02 04:18:55,328 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 04:18:55,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2018-12-02 04:18:55,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-02 04:18:55,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-02 04:18:55,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-12-02 04:18:55,329 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 13 states. [2018-12-02 04:18:55,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:18:55,480 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2018-12-02 04:18:55,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-02 04:18:55,480 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 29 [2018-12-02 04:18:55,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:18:55,480 INFO L225 Difference]: With dead ends: 37 [2018-12-02 04:18:55,480 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 04:18:55,481 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2018-12-02 04:18:55,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 04:18:55,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 04:18:55,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 04:18:55,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 04:18:55,481 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-12-02 04:18:55,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:18:55,481 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 04:18:55,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-02 04:18:55,481 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 04:18:55,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 04:18:55,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:18:55 BoogieIcfgContainer [2018-12-02 04:18:55,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 04:18:55,485 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 04:18:55,485 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 04:18:55,485 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 04:18:55,485 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:18:54" (3/4) ... [2018-12-02 04:18:55,487 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 04:18:55,492 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 04:18:55,493 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 04:18:55,493 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-12-02 04:18:55,496 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-12-02 04:18:55,497 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 04:18:55,497 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 04:18:55,497 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 04:18:55,523 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_86545965-8632-4579-a2bf-1c286f705241/bin-2019/uautomizer/witness.graphml [2018-12-02 04:18:55,523 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 04:18:55,524 INFO L168 Benchmark]: Toolchain (without parser) took 1822.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -109.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:18:55,525 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:18:55,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 130.90 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 04:18:55,525 INFO L168 Benchmark]: Boogie Preprocessor took 49.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -166.6 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-12-02 04:18:55,525 INFO L168 Benchmark]: RCFGBuilder took 147.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-12-02 04:18:55,526 INFO L168 Benchmark]: TraceAbstraction took 1453.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-12-02 04:18:55,526 INFO L168 Benchmark]: Witness Printer took 38.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-02 04:18:55,527 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 130.90 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -166.6 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 147.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1453.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Witness Printer took 38.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 5 error locations. SAFE Result, 1.4s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 109 SDtfs, 166 SDslu, 242 SDs, 0 SdLazy, 314 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=6, 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, 7 MinimizatonAttempts, 4 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 208 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 197 ConstructedInterpolants, 50 QuantifiedInterpolants, 28109 SizeOfPredicates, 6 NumberOfNonLiveVariables, 368 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 64/154 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...