./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/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_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/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 0.1.23-1dbac8b [2018-11-10 09:52:41,980 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 09:52:41,981 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 09:52:41,989 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 09:52:41,990 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 09:52:41,990 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 09:52:41,991 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 09:52:41,992 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 09:52:41,993 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 09:52:41,994 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 09:52:41,994 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 09:52:41,994 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 09:52:41,995 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 09:52:41,996 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 09:52:41,996 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 09:52:41,997 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 09:52:41,997 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 09:52:41,999 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 09:52:42,000 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 09:52:42,001 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 09:52:42,002 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 09:52:42,003 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 09:52:42,004 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 09:52:42,004 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 09:52:42,004 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 09:52:42,005 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 09:52:42,006 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 09:52:42,006 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 09:52:42,007 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 09:52:42,008 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 09:52:42,008 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 09:52:42,008 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 09:52:42,008 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 09:52:42,008 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 09:52:42,009 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 09:52:42,010 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 09:52:42,010 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-10 09:52:42,020 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 09:52:42,020 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 09:52:42,021 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 09:52:42,021 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 09:52:42,021 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 09:52:42,021 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 09:52:42,021 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 09:52:42,021 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 09:52:42,022 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 09:52:42,022 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 09:52:42,022 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 09:52:42,022 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-10 09:52:42,022 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-10 09:52:42,022 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-10 09:52:42,022 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 09:52:42,023 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 09:52:42,023 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 09:52:42,023 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 09:52:42,023 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 09:52:42,023 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 09:52:42,023 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 09:52:42,023 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 09:52:42,024 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 09:52:42,024 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 09:52:42,024 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 09:52:42,024 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_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/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 [2018-11-10 09:52:42,047 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 09:52:42,054 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 09:52:42,056 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 09:52:42,057 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 09:52:42,057 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 09:52:42,058 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-11-10 09:52:42,100 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/bin-2019/uautomizer/data/5abeb66ba/4ba5e2634c384d8faa02542259c88475/FLAGfca90d0c7 [2018-11-10 09:52:42,490 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 09:52:42,490 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-11-10 09:52:42,495 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/bin-2019/uautomizer/data/5abeb66ba/4ba5e2634c384d8faa02542259c88475/FLAGfca90d0c7 [2018-11-10 09:52:42,503 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/bin-2019/uautomizer/data/5abeb66ba/4ba5e2634c384d8faa02542259c88475 [2018-11-10 09:52:42,504 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 09:52:42,505 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 09:52:42,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 09:52:42,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 09:52:42,508 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 09:52:42,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:52:42" (1/1) ... [2018-11-10 09:52:42,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34beab61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:52:42, skipping insertion in model container [2018-11-10 09:52:42,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:52:42" (1/1) ... [2018-11-10 09:52:42,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 09:52:42,525 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 09:52:42,615 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:52:42,623 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 09:52:42,632 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:52:42,644 INFO L193 MainTranslator]: Completed translation [2018-11-10 09:52:42,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:52:42 WrapperNode [2018-11-10 09:52:42,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 09:52:42,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 09:52:42,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 09:52:42,645 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 09:52:42,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:52:42" (1/1) ... [2018-11-10 09:52:42,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:52:42" (1/1) ... [2018-11-10 09:52:42,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:52:42" (1/1) ... [2018-11-10 09:52:42,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:52:42" (1/1) ... [2018-11-10 09:52:42,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:52:42" (1/1) ... [2018-11-10 09:52:42,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:52:42" (1/1) ... [2018-11-10 09:52:42,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:52:42" (1/1) ... [2018-11-10 09:52:42,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 09:52:42,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 09:52:42,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 09:52:42,670 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 09:52:42,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:52:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/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 [2018-11-10 09:52:42,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 09:52:42,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 09:52:42,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-10 09:52:42,751 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 09:52:42,751 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2018-11-10 09:52:42,751 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-10 09:52:42,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 09:52:42,751 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 09:52:42,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 09:52:42,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 09:52:42,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 09:52:42,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 09:52:42,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 09:52:42,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 09:52:42,955 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 09:52:42,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:52:42 BoogieIcfgContainer [2018-11-10 09:52:42,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 09:52:42,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 09:52:42,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 09:52:42,959 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 09:52:42,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 09:52:42" (1/3) ... [2018-11-10 09:52:42,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eba63a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:52:42, skipping insertion in model container [2018-11-10 09:52:42,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:52:42" (2/3) ... [2018-11-10 09:52:42,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eba63a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:52:42, skipping insertion in model container [2018-11-10 09:52:42,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:52:42" (3/3) ... [2018-11-10 09:52:42,962 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers1_true-valid-memsafety.c [2018-11-10 09:52:42,970 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 09:52:42,976 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-10 09:52:42,989 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-10 09:52:43,009 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 09:52:43,009 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 09:52:43,009 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-10 09:52:43,009 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 09:52:43,009 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 09:52:43,010 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 09:52:43,010 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 09:52:43,010 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 09:52:43,010 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 09:52:43,022 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-10 09:52:43,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 09:52:43,030 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:52:43,030 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:52:43,032 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 09:52:43,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:52:43,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1596381083, now seen corresponding path program 1 times [2018-11-10 09:52:43,038 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 09:52:43,038 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 09:52:43,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:52:43,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:52:43,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:52:43,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:52:43,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 09:52:43,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 09:52:43,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 09:52:43,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 09:52:43,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 09:52:43,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 09:52:43,196 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 3 states. [2018-11-10 09:52:43,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:52:43,242 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2018-11-10 09:52:43,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 09:52:43,246 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-11-10 09:52:43,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:52:43,253 INFO L225 Difference]: With dead ends: 41 [2018-11-10 09:52:43,253 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 09:52:43,255 INFO L605 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 [2018-11-10 09:52:43,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 09:52:43,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-10 09:52:43,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 09:52:43,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2018-11-10 09:52:43,280 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 23 [2018-11-10 09:52:43,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:52:43,280 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2018-11-10 09:52:43,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 09:52:43,280 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2018-11-10 09:52:43,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 09:52:43,281 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:52:43,281 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:52:43,281 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 09:52:43,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:52:43,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1596381084, now seen corresponding path program 1 times [2018-11-10 09:52:43,282 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 09:52:43,282 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 09:52:43,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:52:43,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:52:43,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:52:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:52:43,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 09:52:43,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 09:52:43,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 09:52:43,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 09:52:43,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 09:52:43,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 09:52:43,372 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 4 states. [2018-11-10 09:52:43,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:52:43,435 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-11-10 09:52:43,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 09:52:43,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-11-10 09:52:43,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:52:43,436 INFO L225 Difference]: With dead ends: 40 [2018-11-10 09:52:43,436 INFO L226 Difference]: Without dead ends: 40 [2018-11-10 09:52:43,437 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 09:52:43,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-10 09:52:43,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-11-10 09:52:43,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-10 09:52:43,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2018-11-10 09:52:43,440 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 23 [2018-11-10 09:52:43,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:52:43,440 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2018-11-10 09:52:43,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 09:52:43,440 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2018-11-10 09:52:43,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 09:52:43,441 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:52:43,441 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:52:43,441 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 09:52:43,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:52:43,442 INFO L82 PathProgramCache]: Analyzing trace with hash 980888115, now seen corresponding path program 1 times [2018-11-10 09:52:43,442 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 09:52:43,443 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 09:52:43,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:52:43,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:52:43,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:52:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:52:43,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 09:52:43,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 09:52:43,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 09:52:43,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 09:52:43,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 09:52:43,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-10 09:52:43,569 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 6 states. [2018-11-10 09:52:43,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:52:43,618 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-11-10 09:52:43,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 09:52:43,618 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2018-11-10 09:52:43,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:52:43,619 INFO L225 Difference]: With dead ends: 39 [2018-11-10 09:52:43,619 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 09:52:43,620 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-10 09:52:43,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 09:52:43,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-11-10 09:52:43,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-10 09:52:43,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2018-11-10 09:52:43,623 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 27 [2018-11-10 09:52:43,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:52:43,624 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2018-11-10 09:52:43,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 09:52:43,624 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2018-11-10 09:52:43,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 09:52:43,624 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:52:43,625 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:52:43,625 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 09:52:43,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:52:43,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1820218151, now seen corresponding path program 1 times [2018-11-10 09:52:43,625 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 09:52:43,625 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 09:52:43,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:52:43,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:52:43,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:52:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:52:43,696 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 09:52:43,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 09:52:43,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 09:52:43,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 09:52:43,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 09:52:43,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 09:52:43,697 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 6 states. [2018-11-10 09:52:43,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:52:43,767 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2018-11-10 09:52:43,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 09:52:43,767 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-11-10 09:52:43,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:52:43,768 INFO L225 Difference]: With dead ends: 36 [2018-11-10 09:52:43,768 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 09:52:43,768 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-10 09:52:43,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 09:52:43,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-10 09:52:43,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 09:52:43,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2018-11-10 09:52:43,771 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 33 [2018-11-10 09:52:43,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:52:43,771 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2018-11-10 09:52:43,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 09:52:43,771 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2018-11-10 09:52:43,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 09:52:43,772 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:52:43,772 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:52:43,772 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 09:52:43,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:52:43,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1820218152, now seen corresponding path program 1 times [2018-11-10 09:52:43,772 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 09:52:43,773 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 09:52:43,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:52:43,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:52:43,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:52:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:52:43,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 09:52:43,807 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 09:52:43,807 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/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 [2018-11-10 09:52:43,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:52:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:52:43,843 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:52:43,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 09:52:43,878 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 09:52:43,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-11-10 09:52:43,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 09:52:43,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 09:52:43,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 09:52:43,879 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 5 states. [2018-11-10 09:52:43,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:52:43,896 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2018-11-10 09:52:43,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 09:52:43,896 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2018-11-10 09:52:43,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:52:43,897 INFO L225 Difference]: With dead ends: 42 [2018-11-10 09:52:43,897 INFO L226 Difference]: Without dead ends: 42 [2018-11-10 09:52:43,897 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 09:52:43,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-10 09:52:43,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2018-11-10 09:52:43,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-10 09:52:43,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2018-11-10 09:52:43,901 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 33 [2018-11-10 09:52:43,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:52:43,901 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2018-11-10 09:52:43,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 09:52:43,902 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-11-10 09:52:43,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-10 09:52:43,902 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:52:43,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:52:43,903 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 09:52:43,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:52:43,903 INFO L82 PathProgramCache]: Analyzing trace with hash 2012583167, now seen corresponding path program 2 times [2018-11-10 09:52:43,903 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 09:52:43,903 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 09:52:43,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:52:43,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:52:43,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:52:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:52:43,953 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 09:52:43,953 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 09:52:43,953 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/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 [2018-11-10 09:52:43,964 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 09:52:43,981 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-10 09:52:43,981 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 09:52:43,984 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:52:44,006 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 09:52:44,008 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 09:52:44,015 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 09:52:44,016 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 09:52:44,148 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-10 09:52:44,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 09:52:44,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2018-11-10 09:52:44,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 09:52:44,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 09:52:44,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-10 09:52:44,176 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 10 states. [2018-11-10 09:52:44,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:52:44,340 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2018-11-10 09:52:44,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 09:52:44,341 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2018-11-10 09:52:44,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:52:44,341 INFO L225 Difference]: With dead ends: 47 [2018-11-10 09:52:44,341 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 09:52:44,343 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-11-10 09:52:44,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 09:52:44,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 09:52:44,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 09:52:44,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 09:52:44,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2018-11-10 09:52:44,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:52:44,344 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 09:52:44,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 09:52:44,344 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 09:52:44,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 09:52:44,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 09:52:44 BoogieIcfgContainer [2018-11-10 09:52:44,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 09:52:44,350 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 09:52:44,350 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 09:52:44,350 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 09:52:44,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:52:42" (3/4) ... [2018-11-10 09:52:44,352 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 09:52:44,356 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 09:52:44,357 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 09:52:44,357 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-11-10 09:52:44,360 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-10 09:52:44,360 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-10 09:52:44,361 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 09:52:44,361 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 09:52:44,389 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cf9b3bf9-7fb0-4628-ad6e-6f9d8432273c/bin-2019/uautomizer/witness.graphml [2018-11-10 09:52:44,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 09:52:44,390 INFO L168 Benchmark]: Toolchain (without parser) took 1885.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 959.2 MB in the beginning and 922.9 MB in the end (delta: 36.3 MB). Peak memory consumption was 168.4 MB. Max. memory is 11.5 GB. [2018-11-10 09:52:44,391 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 09:52:44,391 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.78 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 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. [2018-11-10 09:52:44,391 INFO L168 Benchmark]: Boogie Preprocessor took 24.67 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. [2018-11-10 09:52:44,392 INFO L168 Benchmark]: RCFGBuilder took 286.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 09:52:44,392 INFO L168 Benchmark]: TraceAbstraction took 1392.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 926.3 MB in the end (delta: 188.2 MB). Peak memory consumption was 188.2 MB. Max. memory is 11.5 GB. [2018-11-10 09:52:44,392 INFO L168 Benchmark]: Witness Printer took 40.13 ms. Allocated memory is still 1.2 GB. Free memory was 926.3 MB in the beginning and 922.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-10 09:52:44,394 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 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 138.78 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 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 24.67 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 286.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1392.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 926.3 MB in the end (delta: 188.2 MB). Peak memory consumption was 188.2 MB. Max. memory is 11.5 GB. * Witness Printer took 40.13 ms. Allocated memory is still 1.2 GB. Free memory was 926.3 MB in the beginning and 922.9 MB 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: 15]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 43 locations, 5 error locations. SAFE Result, 1.3s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 135 SDtfs, 116 SDslu, 204 SDs, 0 SdLazy, 355 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, 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, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 246 NumberOfCodeBlocks, 238 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 238 ConstructedInterpolants, 0 QuantifiedInterpolants, 30488 SizeOfPredicates, 3 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 13/25 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...