./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.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_2da95870-32fb-49e1-92a6-9c76634c2974/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2da95870-32fb-49e1-92a6-9c76634c2974/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2da95870-32fb-49e1-92a6-9c76634c2974/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2da95870-32fb-49e1-92a6-9c76634c2974/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2da95870-32fb-49e1-92a6-9c76634c2974/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2da95870-32fb-49e1-92a6-9c76634c2974/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 639853f2f40cff84155fe09902eff2b5a20185f5 ................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 03:09:05,464 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:09:05,465 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:09:05,475 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:09:05,475 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:09:05,476 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:09:05,477 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:09:05,478 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:09:05,480 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:09:05,480 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:09:05,481 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:09:05,481 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:09:05,482 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:09:05,483 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:09:05,484 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:09:05,484 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:09:05,485 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:09:05,486 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:09:05,488 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:09:05,489 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:09:05,490 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:09:05,491 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:09:05,493 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:09:05,493 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:09:05,493 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:09:05,494 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:09:05,495 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:09:05,496 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:09:05,496 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:09:05,497 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:09:05,497 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:09:05,498 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:09:05,498 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:09:05,498 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:09:05,499 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:09:05,499 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:09:05,499 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2da95870-32fb-49e1-92a6-9c76634c2974/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-10 03:09:05,510 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:09:05,510 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:09:05,511 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 03:09:05,511 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 03:09:05,512 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 03:09:05,512 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:09:05,512 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 03:09:05,512 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 03:09:05,512 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 03:09:05,512 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 03:09:05,512 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:09:05,513 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-10 03:09:05,513 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-10 03:09:05,513 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-10 03:09:05,513 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 03:09:05,513 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 03:09:05,513 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:09:05,513 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 03:09:05,513 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 03:09:05,514 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 03:09:05,514 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 03:09:05,514 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:09:05,514 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 03:09:05,514 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 03:09:05,514 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 03:09:05,514 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_2da95870-32fb-49e1-92a6-9c76634c2974/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 -> 639853f2f40cff84155fe09902eff2b5a20185f5 [2018-11-10 03:09:05,539 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:09:05,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:09:05,551 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:09:05,552 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:09:05,553 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:09:05,553 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2da95870-32fb-49e1-92a6-9c76634c2974/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c [2018-11-10 03:09:05,599 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2da95870-32fb-49e1-92a6-9c76634c2974/bin-2019/uautomizer/data/042b9d8ba/e02150f6698143d2a018f651eded1808/FLAG4a7f74486 [2018-11-10 03:09:05,956 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:09:05,956 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2da95870-32fb-49e1-92a6-9c76634c2974/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c [2018-11-10 03:09:05,962 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2da95870-32fb-49e1-92a6-9c76634c2974/bin-2019/uautomizer/data/042b9d8ba/e02150f6698143d2a018f651eded1808/FLAG4a7f74486 [2018-11-10 03:09:05,975 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2da95870-32fb-49e1-92a6-9c76634c2974/bin-2019/uautomizer/data/042b9d8ba/e02150f6698143d2a018f651eded1808 [2018-11-10 03:09:05,978 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:09:05,979 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 03:09:05,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:09:05,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:09:05,983 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:09:05,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:09:05" (1/1) ... [2018-11-10 03:09:05,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eeb45d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:09:05, skipping insertion in model container [2018-11-10 03:09:05,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:09:05" (1/1) ... [2018-11-10 03:09:05,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:09:06,008 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:09:06,134 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:09:06,140 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:09:06,154 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:09:06,165 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:09:06,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:09:06 WrapperNode [2018-11-10 03:09:06,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:09:06,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:09:06,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:09:06,166 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:09:06,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:09:06" (1/1) ... [2018-11-10 03:09:06,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:09:06" (1/1) ... [2018-11-10 03:09:06,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:09:06" (1/1) ... [2018-11-10 03:09:06,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:09:06" (1/1) ... [2018-11-10 03:09:06,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:09:06" (1/1) ... [2018-11-10 03:09:06,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:09:06" (1/1) ... [2018-11-10 03:09:06,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:09:06" (1/1) ... [2018-11-10 03:09:06,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:09:06,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:09:06,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:09:06,195 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:09:06,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:09:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2da95870-32fb-49e1-92a6-9c76634c2974/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 03:09:06,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 03:09:06,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:09:06,290 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2018-11-10 03:09:06,290 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-11-10 03:09:06,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 03:09:06,290 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2018-11-10 03:09:06,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 03:09:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-11-10 03:09:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 03:09:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 03:09:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 03:09:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 03:09:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 03:09:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:09:06,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 03:09:06,544 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:09:06,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:09:06 BoogieIcfgContainer [2018-11-10 03:09:06,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:09:06,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 03:09:06,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 03:09:06,549 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 03:09:06,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 03:09:05" (1/3) ... [2018-11-10 03:09:06,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5572c3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:09:06, skipping insertion in model container [2018-11-10 03:09:06,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:09:06" (2/3) ... [2018-11-10 03:09:06,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5572c3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:09:06, skipping insertion in model container [2018-11-10 03:09:06,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:09:06" (3/3) ... [2018-11-10 03:09:06,553 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_false-valid-deref-read.c [2018-11-10 03:09:06,563 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 03:09:06,570 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-11-10 03:09:06,587 INFO L257 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2018-11-10 03:09:06,609 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 03:09:06,610 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 03:09:06,610 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-10 03:09:06,610 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 03:09:06,610 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 03:09:06,610 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 03:09:06,611 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 03:09:06,611 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 03:09:06,611 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 03:09:06,625 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-11-10 03:09:06,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 03:09:06,634 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:09:06,635 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:09:06,637 INFO L424 AbstractCegarLoop]: === Iteration 1 === [barErr0REQUIRES_VIOLATION, barErr1REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-11-10 03:09:06,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:09:06,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1613294992, now seen corresponding path program 1 times [2018-11-10 03:09:06,643 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:09:06,644 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:09:06,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:09:06,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:09:06,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:09:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:09:06,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:09:06,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:09:06,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 03:09:06,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 03:09:06,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 03:09:06,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 03:09:06,760 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2018-11-10 03:09:06,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:09:06,780 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2018-11-10 03:09:06,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 03:09:06,782 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-11-10 03:09:06,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:09:06,790 INFO L225 Difference]: With dead ends: 68 [2018-11-10 03:09:06,791 INFO L226 Difference]: Without dead ends: 65 [2018-11-10 03:09:06,792 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 03:09:06,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-10 03:09:06,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-11-10 03:09:06,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-10 03:09:06,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2018-11-10 03:09:06,820 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 13 [2018-11-10 03:09:06,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:09:06,821 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2018-11-10 03:09:06,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 03:09:06,821 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2018-11-10 03:09:06,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 03:09:06,822 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:09:06,822 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:09:06,822 INFO L424 AbstractCegarLoop]: === Iteration 2 === [barErr0REQUIRES_VIOLATION, barErr1REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-11-10 03:09:06,822 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:09:06,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1969953325, now seen corresponding path program 1 times [2018-11-10 03:09:06,823 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:09:06,823 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:09:06,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:09:06,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:09:06,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:09:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:09:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:09:06,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:09:06,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 03:09:06,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 03:09:06,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 03:09:06,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 03:09:06,880 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand 3 states. [2018-11-10 03:09:06,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:09:06,937 INFO L93 Difference]: Finished difference Result 71 states and 76 transitions. [2018-11-10 03:09:06,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 03:09:06,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-11-10 03:09:06,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:09:06,939 INFO L225 Difference]: With dead ends: 71 [2018-11-10 03:09:06,939 INFO L226 Difference]: Without dead ends: 71 [2018-11-10 03:09:06,940 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 03:09:06,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-11-10 03:09:06,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 64. [2018-11-10 03:09:06,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-10 03:09:06,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-11-10 03:09:06,950 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 14 [2018-11-10 03:09:06,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:09:06,950 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-11-10 03:09:06,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 03:09:06,950 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-11-10 03:09:06,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 03:09:06,951 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:09:06,951 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:09:06,951 INFO L424 AbstractCegarLoop]: === Iteration 3 === [barErr0REQUIRES_VIOLATION, barErr1REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-11-10 03:09:06,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:09:06,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1297061679, now seen corresponding path program 1 times [2018-11-10 03:09:06,952 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:09:06,952 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:09:06,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:09:06,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:09:06,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:09:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:09:07,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:09:07,044 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:09:07,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 03:09:07,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 03:09:07,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 03:09:07,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-10 03:09:07,045 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 6 states. [2018-11-10 03:09:07,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:09:07,151 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2018-11-10 03:09:07,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 03:09:07,151 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-11-10 03:09:07,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:09:07,152 INFO L225 Difference]: With dead ends: 85 [2018-11-10 03:09:07,152 INFO L226 Difference]: Without dead ends: 85 [2018-11-10 03:09:07,153 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-10 03:09:07,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-11-10 03:09:07,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2018-11-10 03:09:07,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-11-10 03:09:07,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2018-11-10 03:09:07,158 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 17 [2018-11-10 03:09:07,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:09:07,159 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2018-11-10 03:09:07,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 03:09:07,159 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2018-11-10 03:09:07,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 03:09:07,160 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:09:07,160 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] [2018-11-10 03:09:07,160 INFO L424 AbstractCegarLoop]: === Iteration 4 === [barErr0REQUIRES_VIOLATION, barErr1REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-11-10 03:09:07,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:09:07,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1600184185, now seen corresponding path program 1 times [2018-11-10 03:09:07,160 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:09:07,161 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:09:07,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:09:07,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:09:07,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:09:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:09:07,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:09:07,218 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:09:07,218 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 03:09:07,218 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 03:09:07,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 03:09:07,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 03:09:07,219 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand 5 states. [2018-11-10 03:09:07,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:09:07,280 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2018-11-10 03:09:07,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 03:09:07,280 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-11-10 03:09:07,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:09:07,282 INFO L225 Difference]: With dead ends: 77 [2018-11-10 03:09:07,282 INFO L226 Difference]: Without dead ends: 77 [2018-11-10 03:09:07,283 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 03:09:07,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-11-10 03:09:07,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-11-10 03:09:07,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-11-10 03:09:07,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions. [2018-11-10 03:09:07,290 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 21 [2018-11-10 03:09:07,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:09:07,290 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 83 transitions. [2018-11-10 03:09:07,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 03:09:07,290 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2018-11-10 03:09:07,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 03:09:07,291 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:09:07,291 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] [2018-11-10 03:09:07,291 INFO L424 AbstractCegarLoop]: === Iteration 5 === [barErr0REQUIRES_VIOLATION, barErr1REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-11-10 03:09:07,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:09:07,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1600184184, now seen corresponding path program 1 times [2018-11-10 03:09:07,292 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:09:07,292 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:09:07,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:09:07,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:09:07,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:09:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:09:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:09:07,336 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 03:09:07,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 03:09:07 BoogieIcfgContainer [2018-11-10 03:09:07,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 03:09:07,356 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 03:09:07,356 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 03:09:07,356 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 03:09:07,357 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:09:06" (3/4) ... [2018-11-10 03:09:07,359 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 03:09:07,395 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2da95870-32fb-49e1-92a6-9c76634c2974/bin-2019/uautomizer/witness.graphml [2018-11-10 03:09:07,395 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 03:09:07,396 INFO L168 Benchmark]: Toolchain (without parser) took 1417.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 959.1 MB in the beginning and 1.0 GB in the end (delta: -80.1 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. [2018-11-10 03:09:07,397 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:09:07,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.43 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. [2018-11-10 03:09:07,398 INFO L168 Benchmark]: Boogie Preprocessor took 28.50 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:09:07,399 INFO L168 Benchmark]: RCFGBuilder took 350.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 03:09:07,399 INFO L168 Benchmark]: TraceAbstraction took 810.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.2 MB). Peak memory consumption was 68.2 MB. Max. memory is 11.5 GB. [2018-11-10 03:09:07,400 INFO L168 Benchmark]: Witness Printer took 39.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:09:07,403 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 185.43 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 28.50 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 350.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 810.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.2 MB). Peak memory consumption was 68.2 MB. Max. memory is 11.5 GB. * Witness Printer took 39.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 14]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L32] int i, b[100]; VAL [b={403:0}] [L33] i = 0 VAL [b={403:0}, i=0] [L33] COND TRUE i < 100 VAL [b={403:0}, i=0] [L34] CALL foo(i, b, i) VAL [\old(n)=0, \old(size)=0, b={403:0}] [L21] FCALL int a[n], i; [L22] i = 0 VAL [\old(n)=0, \old(size)=0, a={401:0}, b={403:0}, b={403:0}, i=0, n=0, size=0] [L22] COND FALSE !(i < size) VAL [\old(n)=0, \old(size)=0, a={401:0}, b={403:0}, b={403:0}, i=0, n=0, size=0] [L25] CALL bar(a, size + 1) VAL [\old(size)=1, b={401:0}] [L12] int res = 0, i; [L13] i = 0 VAL [\old(size)=1, b={401:0}, b={401:0}, i=0, res=0, size=1] [L13] COND TRUE i < size VAL [\old(size)=1, b={401:0}, b={401:0}, i=0, res=0, size=1] [L14] FCALL b[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 68 locations, 11 error locations. UNSAFE Result, 0.7s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 239 SDtfs, 94 SDslu, 306 SDs, 0 SdLazy, 125 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=3, 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, 4 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 2045 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...