./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_271d036b-233b-49f4-ab9d-e505cb905b21/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_271d036b-233b-49f4-ab9d-e505cb905b21/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_271d036b-233b-49f4-ab9d-e505cb905b21/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_271d036b-233b-49f4-ab9d-e505cb905b21/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_271d036b-233b-49f4-ab9d-e505cb905b21/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_271d036b-233b-49f4-ab9d-e505cb905b21/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 [2018-10-27 04:45:06,541 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 04:45:06,542 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 04:45:06,551 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 04:45:06,551 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 04:45:06,552 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 04:45:06,553 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 04:45:06,554 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 04:45:06,556 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 04:45:06,556 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 04:45:06,558 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 04:45:06,559 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 04:45:06,559 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 04:45:06,560 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 04:45:06,561 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 04:45:06,561 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 04:45:06,562 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 04:45:06,563 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 04:45:06,575 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 04:45:06,578 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 04:45:06,580 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 04:45:06,581 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 04:45:06,583 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 04:45:06,583 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 04:45:06,583 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 04:45:06,584 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 04:45:06,584 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 04:45:06,585 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 04:45:06,585 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 04:45:06,586 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 04:45:06,586 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 04:45:06,587 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 04:45:06,587 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 04:45:06,587 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 04:45:06,588 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 04:45:06,588 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 04:45:06,588 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_271d036b-233b-49f4-ab9d-e505cb905b21/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-10-27 04:45:06,603 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 04:45:06,603 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 04:45:06,604 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 04:45:06,604 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 04:45:06,605 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 04:45:06,605 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 04:45:06,605 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 04:45:06,605 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 04:45:06,605 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 04:45:06,605 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 04:45:06,605 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 04:45:06,606 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-27 04:45:06,606 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-27 04:45:06,606 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-27 04:45:06,606 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 04:45:06,606 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 04:45:06,606 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 04:45:06,606 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 04:45:06,607 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 04:45:06,607 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 04:45:06,607 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 04:45:06,607 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 04:45:06,607 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 04:45:06,607 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 04:45:06,608 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 04:45:06,608 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_271d036b-233b-49f4-ab9d-e505cb905b21/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 [2018-10-27 04:45:06,632 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 04:45:06,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 04:45:06,648 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 04:45:06,649 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 04:45:06,649 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 04:45:06,650 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_271d036b-233b-49f4-ab9d-e505cb905b21/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-10-27 04:45:06,700 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_271d036b-233b-49f4-ab9d-e505cb905b21/bin-2019/uautomizer/data/54fbad8cf/f9d24a3cac394aea86bf708c5ac000fb/FLAGb119d5b3d [2018-10-27 04:45:07,056 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 04:45:07,057 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_271d036b-233b-49f4-ab9d-e505cb905b21/sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-10-27 04:45:07,063 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_271d036b-233b-49f4-ab9d-e505cb905b21/bin-2019/uautomizer/data/54fbad8cf/f9d24a3cac394aea86bf708c5ac000fb/FLAGb119d5b3d [2018-10-27 04:45:07,075 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_271d036b-233b-49f4-ab9d-e505cb905b21/bin-2019/uautomizer/data/54fbad8cf/f9d24a3cac394aea86bf708c5ac000fb [2018-10-27 04:45:07,077 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 04:45:07,078 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 04:45:07,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 04:45:07,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 04:45:07,082 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 04:45:07,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:45:07" (1/1) ... [2018-10-27 04:45:07,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa72dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:07, skipping insertion in model container [2018-10-27 04:45:07,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:45:07" (1/1) ... [2018-10-27 04:45:07,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 04:45:07,109 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 04:45:07,245 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 04:45:07,254 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 04:45:07,267 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 04:45:07,282 INFO L193 MainTranslator]: Completed translation [2018-10-27 04:45:07,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:07 WrapperNode [2018-10-27 04:45:07,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 04:45:07,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 04:45:07,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 04:45:07,283 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 04:45:07,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:07" (1/1) ... [2018-10-27 04:45:07,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:07" (1/1) ... [2018-10-27 04:45:07,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:07" (1/1) ... [2018-10-27 04:45:07,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:07" (1/1) ... [2018-10-27 04:45:07,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:07" (1/1) ... [2018-10-27 04:45:07,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:07" (1/1) ... [2018-10-27 04:45:07,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:07" (1/1) ... [2018-10-27 04:45:07,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 04:45:07,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 04:45:07,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 04:45:07,313 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 04:45:07,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_271d036b-233b-49f4-ab9d-e505cb905b21/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 [2018-10-27 04:45:07,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 04:45:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 04:45:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-10-27 04:45:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 04:45:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2018-10-27 04:45:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-10-27 04:45:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-27 04:45:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 04:45:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-27 04:45:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-27 04:45:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 04:45:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-10-27 04:45:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 04:45:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-27 04:45:07,788 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 04:45:07,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:45:07 BoogieIcfgContainer [2018-10-27 04:45:07,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 04:45:07,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 04:45:07,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 04:45:07,792 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 04:45:07,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:45:07" (1/3) ... [2018-10-27 04:45:07,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb0145e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:45:07, skipping insertion in model container [2018-10-27 04:45:07,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:07" (2/3) ... [2018-10-27 04:45:07,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb0145e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:45:07, skipping insertion in model container [2018-10-27 04:45:07,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:45:07" (3/3) ... [2018-10-27 04:45:07,796 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers1_true-valid-memsafety.c [2018-10-27 04:45:07,805 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 04:45:07,812 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-10-27 04:45:07,825 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-10-27 04:45:07,847 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 04:45:07,847 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 04:45:07,847 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-27 04:45:07,848 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 04:45:07,848 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 04:45:07,848 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 04:45:07,848 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 04:45:07,848 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 04:45:07,848 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 04:45:07,861 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-10-27 04:45:07,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-27 04:45:07,870 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:07,871 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] [2018-10-27 04:45:07,873 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-10-27 04:45:07,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:07,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1596381083, now seen corresponding path program 1 times [2018-10-27 04:45:07,880 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:07,880 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:07,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:07,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:45:07,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:07,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:08,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:08,106 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 04:45:08,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 04:45:08,109 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 04:45:08,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 04:45:08,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 04:45:08,124 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 3 states. [2018-10-27 04:45:08,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:08,363 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2018-10-27 04:45:08,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 04:45:08,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-10-27 04:45:08,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:08,374 INFO L225 Difference]: With dead ends: 41 [2018-10-27 04:45:08,374 INFO L226 Difference]: Without dead ends: 36 [2018-10-27 04:45:08,376 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 [2018-10-27 04:45:08,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-10-27 04:45:08,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-10-27 04:45:08,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-10-27 04:45:08,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2018-10-27 04:45:08,409 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 23 [2018-10-27 04:45:08,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:08,410 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2018-10-27 04:45:08,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 04:45:08,410 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2018-10-27 04:45:08,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-27 04:45:08,410 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:08,411 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] [2018-10-27 04:45:08,411 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-10-27 04:45:08,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:08,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1596381084, now seen corresponding path program 1 times [2018-10-27 04:45:08,411 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:08,411 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:08,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:08,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:45:08,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:08,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:08,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 04:45:08,612 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 04:45:08,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 04:45:08,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 04:45:08,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 04:45:08,614 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 4 states. [2018-10-27 04:45:08,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:08,833 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-10-27 04:45:08,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 04:45:08,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-10-27 04:45:08,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:08,835 INFO L225 Difference]: With dead ends: 40 [2018-10-27 04:45:08,835 INFO L226 Difference]: Without dead ends: 40 [2018-10-27 04:45:08,836 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 04:45:08,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-10-27 04:45:08,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-10-27 04:45:08,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-27 04:45:08,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2018-10-27 04:45:08,841 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 23 [2018-10-27 04:45:08,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:08,841 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2018-10-27 04:45:08,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 04:45:08,841 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2018-10-27 04:45:08,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-27 04:45:08,842 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:08,842 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] [2018-10-27 04:45:08,842 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-10-27 04:45:08,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:08,842 INFO L82 PathProgramCache]: Analyzing trace with hash 980888115, now seen corresponding path program 1 times [2018-10-27 04:45:08,842 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:08,843 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:08,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:08,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:45:08,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:09,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:09,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 04:45:09,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 04:45:09,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 04:45:09,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 04:45:09,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-27 04:45:09,212 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 6 states. [2018-10-27 04:45:09,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:09,300 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-10-27 04:45:09,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 04:45:09,301 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2018-10-27 04:45:09,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:09,301 INFO L225 Difference]: With dead ends: 39 [2018-10-27 04:45:09,301 INFO L226 Difference]: Without dead ends: 39 [2018-10-27 04:45:09,302 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-27 04:45:09,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-27 04:45:09,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-10-27 04:45:09,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-27 04:45:09,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2018-10-27 04:45:09,304 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 27 [2018-10-27 04:45:09,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:09,304 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2018-10-27 04:45:09,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 04:45:09,304 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2018-10-27 04:45:09,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-27 04:45:09,306 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:09,306 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] [2018-10-27 04:45:09,306 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-10-27 04:45:09,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:09,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1820218151, now seen corresponding path program 1 times [2018-10-27 04:45:09,306 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:09,307 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:09,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:09,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:45:09,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:09,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:09,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 04:45:09,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 04:45:09,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 04:45:09,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 04:45:09,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-27 04:45:09,409 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 6 states. [2018-10-27 04:45:09,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:09,810 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2018-10-27 04:45:09,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 04:45:09,811 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-10-27 04:45:09,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:09,811 INFO L225 Difference]: With dead ends: 36 [2018-10-27 04:45:09,811 INFO L226 Difference]: Without dead ends: 36 [2018-10-27 04:45:09,812 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-27 04:45:09,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-10-27 04:45:09,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-10-27 04:45:09,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-10-27 04:45:09,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2018-10-27 04:45:09,814 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 33 [2018-10-27 04:45:09,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:09,815 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2018-10-27 04:45:09,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 04:45:09,815 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2018-10-27 04:45:09,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-27 04:45:09,816 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:09,816 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] [2018-10-27 04:45:09,816 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-10-27 04:45:09,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:09,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1820218152, now seen corresponding path program 1 times [2018-10-27 04:45:09,816 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:09,817 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:09,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:09,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:45:09,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:09,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:09,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:09,900 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:45:09,900 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_271d036b-233b-49f4-ab9d-e505cb905b21/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 [2018-10-27 04:45:09,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:45:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:09,945 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:45:09,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:09,983 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 04:45:09,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-10-27 04:45:09,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 04:45:09,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 04:45:09,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-27 04:45:09,984 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 5 states. [2018-10-27 04:45:10,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:10,007 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2018-10-27 04:45:10,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 04:45:10,008 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2018-10-27 04:45:10,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:10,009 INFO L225 Difference]: With dead ends: 42 [2018-10-27 04:45:10,009 INFO L226 Difference]: Without dead ends: 42 [2018-10-27 04:45:10,009 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 [2018-10-27 04:45:10,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-10-27 04:45:10,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2018-10-27 04:45:10,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-10-27 04:45:10,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2018-10-27 04:45:10,012 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 33 [2018-10-27 04:45:10,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:10,013 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2018-10-27 04:45:10,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 04:45:10,013 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-10-27 04:45:10,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-27 04:45:10,014 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:10,014 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] [2018-10-27 04:45:10,014 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-10-27 04:45:10,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:10,014 INFO L82 PathProgramCache]: Analyzing trace with hash 2012583167, now seen corresponding path program 2 times [2018-10-27 04:45:10,014 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:10,014 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:10,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:10,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:45:10,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:10,071 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:45:10,071 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_271d036b-233b-49f4-ab9d-e505cb905b21/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 [2018-10-27 04:45:10,083 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-27 04:45:10,119 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-10-27 04:45:10,120 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 04:45:10,122 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:45:10,141 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 [2018-10-27 04:45:10,143 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-27 04:45:10,146 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:45:10,146 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-10-27 04:45:10,276 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-27 04:45:10,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 04:45:10,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2018-10-27 04:45:10,302 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 04:45:10,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 04:45:10,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-10-27 04:45:10,303 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 10 states. [2018-10-27 04:45:10,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:10,708 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2018-10-27 04:45:10,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 04:45:10,708 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2018-10-27 04:45:10,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:10,708 INFO L225 Difference]: With dead ends: 47 [2018-10-27 04:45:10,709 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 04:45:10,709 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-10-27 04:45:10,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 04:45:10,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 04:45:10,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 04:45:10,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 04:45:10,710 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2018-10-27 04:45:10,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:10,710 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 04:45:10,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 04:45:10,710 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 04:45:10,711 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 04:45:10,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 04:45:10 BoogieIcfgContainer [2018-10-27 04:45:10,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 04:45:10,717 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 04:45:10,717 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 04:45:10,717 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 04:45:10,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:45:07" (3/4) ... [2018-10-27 04:45:10,720 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 04:45:10,726 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 04:45:10,727 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 04:45:10,727 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-10-27 04:45:10,731 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-10-27 04:45:10,731 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-10-27 04:45:10,731 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-27 04:45:10,731 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-27 04:45:10,767 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_271d036b-233b-49f4-ab9d-e505cb905b21/bin-2019/uautomizer/witness.graphml [2018-10-27 04:45:10,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 04:45:10,770 INFO L168 Benchmark]: Toolchain (without parser) took 3692.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 960.7 MB in the beginning and 955.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 158.0 MB. Max. memory is 11.5 GB. [2018-10-27 04:45:10,771 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 04:45:10,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 204.18 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 948.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-10-27 04:45:10,772 INFO L168 Benchmark]: Boogie Preprocessor took 29.46 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 04:45:10,772 INFO L168 Benchmark]: RCFGBuilder took 475.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -190.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-10-27 04:45:10,773 INFO L168 Benchmark]: TraceAbstraction took 2927.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 961.2 MB in the end (delta: 175.8 MB). Peak memory consumption was 175.8 MB. Max. memory is 11.5 GB. [2018-10-27 04:45:10,773 INFO L168 Benchmark]: Witness Printer took 50.79 ms. Allocated memory is still 1.2 GB. Free memory was 961.2 MB in the beginning and 955.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 04:45:10,775 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 204.18 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 948.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.46 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 475.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -190.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2927.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 961.2 MB in the end (delta: 175.8 MB). Peak memory consumption was 175.8 MB. Max. memory is 11.5 GB. * Witness Printer took 50.79 ms. Allocated memory is still 1.2 GB. Free memory was 961.2 MB in the beginning and 955.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 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, 43 locations, 5 error locations. SAFE Result, 2.8s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 135 SDtfs, 116 SDslu, 204 SDs, 0 SdLazy, 355 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s 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, 0.9s 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...