./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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/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_e052545f-82fe-4b91-b892-478fb9284334/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/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 0.1.23-5842f4b [2018-11-18 16:23:22,382 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:23:22,383 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:23:22,391 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:23:22,391 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:23:22,391 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:23:22,392 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:23:22,393 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:23:22,395 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:23:22,395 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:23:22,396 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:23:22,396 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:23:22,397 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:23:22,397 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:23:22,398 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:23:22,399 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:23:22,399 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:23:22,400 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:23:22,402 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:23:22,403 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:23:22,403 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:23:22,404 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:23:22,406 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:23:22,406 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:23:22,406 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:23:22,407 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:23:22,407 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:23:22,408 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:23:22,408 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:23:22,409 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:23:22,409 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:23:22,410 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:23:22,410 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:23:22,410 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:23:22,410 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:23:22,411 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:23:22,411 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-18 16:23:22,418 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:23:22,418 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:23:22,419 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:23:22,419 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:23:22,419 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:23:22,420 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:23:22,420 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:23:22,420 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 16:23:22,420 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:23:22,420 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:23:22,420 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:23:22,420 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 16:23:22,420 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 16:23:22,421 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 16:23:22,421 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:23:22,421 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:23:22,421 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:23:22,421 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:23:22,421 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:23:22,422 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:23:22,422 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:23:22,422 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:23:22,422 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:23:22,422 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:23:22,422 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:23:22,422 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:23:22,422 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_e052545f-82fe-4b91-b892-478fb9284334/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 [2018-11-18 16:23:22,445 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:23:22,453 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:23:22,455 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:23:22,456 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:23:22,457 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:23:22,457 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-11-18 16:23:22,492 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/bin-2019/uautomizer/data/6ca0b9fba/50ffc3b828674db48496a6638a303355/FLAG9e7f505a3 [2018-11-18 16:23:22,886 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:23:22,886 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-11-18 16:23:22,890 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/bin-2019/uautomizer/data/6ca0b9fba/50ffc3b828674db48496a6638a303355/FLAG9e7f505a3 [2018-11-18 16:23:22,899 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/bin-2019/uautomizer/data/6ca0b9fba/50ffc3b828674db48496a6638a303355 [2018-11-18 16:23:22,901 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:23:22,902 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 16:23:22,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:23:22,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:23:22,904 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:23:22,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:23:22" (1/1) ... [2018-11-18 16:23:22,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f427c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:23:22, skipping insertion in model container [2018-11-18 16:23:22,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:23:22" (1/1) ... [2018-11-18 16:23:22,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:23:22,925 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:23:23,024 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:23:23,032 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:23:23,040 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:23:23,050 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:23:23,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:23:23 WrapperNode [2018-11-18 16:23:23,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:23:23,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:23:23,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:23:23,051 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:23:23,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:23:23" (1/1) ... [2018-11-18 16:23:23,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:23:23" (1/1) ... [2018-11-18 16:23:23,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:23:23" (1/1) ... [2018-11-18 16:23:23,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:23:23" (1/1) ... [2018-11-18 16:23:23,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:23:23" (1/1) ... [2018-11-18 16:23:23,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:23:23" (1/1) ... [2018-11-18 16:23:23,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:23:23" (1/1) ... [2018-11-18 16:23:23,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:23:23,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:23:23,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:23:23,076 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:23:23,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:23:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:23:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:23:23,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:23:23,162 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-18 16:23:23,162 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:23:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2018-11-18 16:23:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-18 16:23:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 16:23:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:23:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:23:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 16:23:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:23:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:23:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 16:23:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:23:23,336 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:23:23,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:23:23 BoogieIcfgContainer [2018-11-18 16:23:23,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:23:23,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:23:23,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:23:23,339 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:23:23,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:23:22" (1/3) ... [2018-11-18 16:23:23,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59544aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:23:23, skipping insertion in model container [2018-11-18 16:23:23,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:23:23" (2/3) ... [2018-11-18 16:23:23,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59544aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:23:23, skipping insertion in model container [2018-11-18 16:23:23,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:23:23" (3/3) ... [2018-11-18 16:23:23,341 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers1_true-valid-memsafety.c [2018-11-18 16:23:23,347 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:23:23,354 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-18 16:23:23,368 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-18 16:23:23,390 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:23:23,391 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:23:23,391 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 16:23:23,391 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:23:23,391 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:23:23,391 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:23:23,391 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:23:23,391 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:23:23,391 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:23:23,404 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-18 16:23:23,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 16:23:23,413 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:23:23,414 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:23:23,415 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 16:23:23,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:23:23,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1121499465, now seen corresponding path program 1 times [2018-11-18 16:23:23,422 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:23:23,423 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:23:23,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:23,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:23:23,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:23:23,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:23:23,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:23:23,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:23:23,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 16:23:23,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 16:23:23,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 16:23:23,555 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2018-11-18 16:23:23,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:23:23,592 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2018-11-18 16:23:23,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 16:23:23,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 16:23:23,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:23:23,599 INFO L225 Difference]: With dead ends: 28 [2018-11-18 16:23:23,599 INFO L226 Difference]: Without dead ends: 23 [2018-11-18 16:23:23,601 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 16:23:23,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-18 16:23:23,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-18 16:23:23,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-18 16:23:23,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-11-18 16:23:23,622 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 10 [2018-11-18 16:23:23,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:23:23,622 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-11-18 16:23:23,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 16:23:23,622 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-11-18 16:23:23,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 16:23:23,623 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:23:23,623 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:23:23,623 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 16:23:23,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:23:23,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1121499466, now seen corresponding path program 1 times [2018-11-18 16:23:23,624 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:23:23,624 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:23:23,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:23,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:23:23,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:23:23,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:23:23,703 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:23:23,703 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 16:23:23,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 16:23:23,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 16:23:23,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 16:23:23,705 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 4 states. [2018-11-18 16:23:23,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:23:23,752 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2018-11-18 16:23:23,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 16:23:23,752 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-18 16:23:23,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:23:23,753 INFO L225 Difference]: With dead ends: 27 [2018-11-18 16:23:23,753 INFO L226 Difference]: Without dead ends: 27 [2018-11-18 16:23:23,754 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 16:23:23,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-18 16:23:23,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-11-18 16:23:23,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-18 16:23:23,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-11-18 16:23:23,756 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 10 [2018-11-18 16:23:23,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:23:23,756 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-11-18 16:23:23,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 16:23:23,756 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-11-18 16:23:23,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 16:23:23,757 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:23:23,757 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:23:23,757 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 16:23:23,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:23:23,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1239312801, now seen corresponding path program 1 times [2018-11-18 16:23:23,757 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:23:23,757 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:23:23,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:23,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:23:23,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:23:23,856 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:23:23,856 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:23:23,856 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:23:23,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:23:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:23:23,891 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:23:23,918 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 16:23:23,929 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 16:23:23,946 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 16:23:23,947 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 16:23:23,956 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 16:23:23,965 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 16:23:23,965 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:24 [2018-11-18 16:23:23,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:23:23,997 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 16:23:23,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-18 16:23:23,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 16:23:23,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 16:23:23,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 16:23:23,998 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 5 states. [2018-11-18 16:23:24,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:23:24,070 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2018-11-18 16:23:24,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 16:23:24,071 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-18 16:23:24,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:23:24,072 INFO L225 Difference]: With dead ends: 31 [2018-11-18 16:23:24,072 INFO L226 Difference]: Without dead ends: 31 [2018-11-18 16:23:24,072 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 16:23:24,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-18 16:23:24,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2018-11-18 16:23:24,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-18 16:23:24,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2018-11-18 16:23:24,076 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 14 [2018-11-18 16:23:24,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:23:24,076 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2018-11-18 16:23:24,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 16:23:24,077 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2018-11-18 16:23:24,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 16:23:24,077 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:23:24,077 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:23:24,079 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 16:23:24,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:23:24,079 INFO L82 PathProgramCache]: Analyzing trace with hash -78244232, now seen corresponding path program 2 times [2018-11-18 16:23:24,080 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:23:24,080 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:23:24,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:24,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:23:24,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:23:24,193 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:23:24,193 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:23:24,194 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:23:24,206 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 16:23:24,219 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 16:23:24,219 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 16:23:24,220 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:23:24,223 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 16:23:24,230 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 16:23:24,238 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 16:23:24,239 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 16:23:24,260 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 16:23:24,275 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 16:23:24,275 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:24 [2018-11-18 16:23:24,327 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:23:24,343 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 16:23:24,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-18 16:23:24,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 16:23:24,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 16:23:24,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-11-18 16:23:24,344 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2018-11-18 16:23:24,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:23:24,451 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2018-11-18 16:23:24,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:23:24,452 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2018-11-18 16:23:24,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:23:24,453 INFO L225 Difference]: With dead ends: 36 [2018-11-18 16:23:24,453 INFO L226 Difference]: Without dead ends: 36 [2018-11-18 16:23:24,454 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-11-18 16:23:24,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-18 16:23:24,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-18 16:23:24,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-18 16:23:24,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2018-11-18 16:23:24,459 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 18 [2018-11-18 16:23:24,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:23:24,459 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2018-11-18 16:23:24,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 16:23:24,460 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2018-11-18 16:23:24,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 16:23:24,460 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:23:24,460 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:23:24,461 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 16:23:24,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:23:24,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1835114362, now seen corresponding path program 1 times [2018-11-18 16:23:24,461 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:23:24,461 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:23:24,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:24,462 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:23:24,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:23:24,514 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-18 16:23:24,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:23:24,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 16:23:24,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 16:23:24,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:23:24,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:23:24,515 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 6 states. [2018-11-18 16:23:24,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:23:24,549 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2018-11-18 16:23:24,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 16:23:24,550 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-18 16:23:24,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:23:24,550 INFO L225 Difference]: With dead ends: 35 [2018-11-18 16:23:24,550 INFO L226 Difference]: Without dead ends: 35 [2018-11-18 16:23:24,551 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-18 16:23:24,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-18 16:23:24,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-18 16:23:24,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-18 16:23:24,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2018-11-18 16:23:24,553 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 32 [2018-11-18 16:23:24,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:23:24,553 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2018-11-18 16:23:24,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 16:23:24,554 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2018-11-18 16:23:24,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 16:23:24,554 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:23:24,554 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:23:24,555 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 16:23:24,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:23:24,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1835114363, now seen corresponding path program 1 times [2018-11-18 16:23:24,555 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:23:24,555 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:23:24,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:24,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:23:24,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:23:24,608 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:23:24,608 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:23:24,608 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:23:24,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:23:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:23:24,633 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:23:24,641 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:23:24,656 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 16:23:24,656 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2018-11-18 16:23:24,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 16:23:24,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 16:23:24,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-18 16:23:24,657 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 8 states. [2018-11-18 16:23:24,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:23:24,684 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2018-11-18 16:23:24,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 16:23:24,685 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-11-18 16:23:24,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:23:24,686 INFO L225 Difference]: With dead ends: 41 [2018-11-18 16:23:24,686 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 16:23:24,686 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-18 16:23:24,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 16:23:24,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2018-11-18 16:23:24,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 16:23:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2018-11-18 16:23:24,690 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 32 [2018-11-18 16:23:24,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:23:24,690 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2018-11-18 16:23:24,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 16:23:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2018-11-18 16:23:24,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 16:23:24,691 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:23:24,691 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:23:24,691 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 16:23:24,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:23:24,692 INFO L82 PathProgramCache]: Analyzing trace with hash -2099354478, now seen corresponding path program 2 times [2018-11-18 16:23:24,692 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:23:24,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:23:24,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:24,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:23:24,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:23:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:23:24,766 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:23:24,767 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:23:24,767 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:23:24,783 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 16:23:24,794 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 16:23:24,794 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 16:23:24,796 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:23:24,799 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 16:23:24,802 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 16:23:24,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 16:23:24,808 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 16:23:24,814 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 16:23:24,824 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 16:23:24,824 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:24 [2018-11-18 16:23:24,894 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-11-18 16:23:24,918 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 16:23:24,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2018-11-18 16:23:24,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 16:23:24,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 16:23:24,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-11-18 16:23:24,919 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 13 states. [2018-11-18 16:23:25,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:23:25,046 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2018-11-18 16:23:25,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 16:23:25,046 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 36 [2018-11-18 16:23:25,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:23:25,046 INFO L225 Difference]: With dead ends: 46 [2018-11-18 16:23:25,046 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 16:23:25,046 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2018-11-18 16:23:25,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 16:23:25,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 16:23:25,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 16:23:25,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:23:25,047 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2018-11-18 16:23:25,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:23:25,048 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:23:25,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 16:23:25,048 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:23:25,048 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:23:25,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:23:25 BoogieIcfgContainer [2018-11-18 16:23:25,052 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:23:25,052 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:23:25,052 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:23:25,052 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:23:25,053 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:23:23" (3/4) ... [2018-11-18 16:23:25,055 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:23:25,059 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 16:23:25,060 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 16:23:25,060 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-11-18 16:23:25,062 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-11-18 16:23:25,062 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 16:23:25,063 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 16:23:25,063 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 16:23:25,088 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e052545f-82fe-4b91-b892-478fb9284334/bin-2019/uautomizer/witness.graphml [2018-11-18 16:23:25,089 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:23:25,089 INFO L168 Benchmark]: Toolchain (without parser) took 2188.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 959.1 MB in the beginning and 879.8 MB in the end (delta: 79.4 MB). Peak memory consumption was 240.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:23:25,090 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:23:25,090 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.90 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:23:25,091 INFO L168 Benchmark]: Boogie Preprocessor took 24.89 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:23:25,091 INFO L168 Benchmark]: RCFGBuilder took 260.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -195.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:23:25,092 INFO L168 Benchmark]: TraceAbstraction took 1714.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 879.8 MB in the end (delta: 261.1 MB). Peak memory consumption was 261.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:23:25,092 INFO L168 Benchmark]: Witness Printer took 36.83 ms. Allocated memory is still 1.2 GB. Free memory is still 879.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:23:25,094 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 148.90 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.89 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 260.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -195.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1714.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 879.8 MB in the end (delta: 261.1 MB). Peak memory consumption was 261.1 MB. Max. memory is 11.5 GB. * Witness Printer took 36.83 ms. Allocated memory is still 1.2 GB. Free memory is still 879.8 MB. There was no memory consumed. 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: 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: 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, 30 locations, 5 error locations. SAFE Result, 1.6s OverallTime, 7 OverallIterations, 6 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 126 SDtfs, 161 SDslu, 271 SDs, 0 SdLazy, 281 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 92 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 4 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 252 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 241 ConstructedInterpolants, 0 QuantifiedInterpolants, 34053 SizeOfPredicates, 6 NumberOfNonLiveVariables, 349 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 92/222 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...