./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c8f17cf5334c3a5b079beafc57a2e2bffaea721f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 04:46:45,273 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 04:46:45,274 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 04:46:45,292 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 04:46:45,292 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 04:46:45,293 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 04:46:45,294 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 04:46:45,296 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 04:46:45,304 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 04:46:45,305 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 04:46:45,306 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 04:46:45,306 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 04:46:45,307 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 04:46:45,308 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 04:46:45,309 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 04:46:45,312 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 04:46:45,313 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 04:46:45,314 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 04:46:45,316 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 04:46:45,332 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 04:46:45,333 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 04:46:45,334 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 04:46:45,336 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 04:46:45,336 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 04:46:45,336 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 04:46:45,337 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 04:46:45,338 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 04:46:45,338 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 04:46:45,339 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 04:46:45,340 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 04:46:45,340 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 04:46:45,341 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 04:46:45,341 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 04:46:45,342 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 04:46:45,343 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 04:46:45,344 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 04:46:45,344 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-10-27 04:46:45,364 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 04:46:45,365 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 04:46:45,368 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 04:46:45,368 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 04:46:45,368 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 04:46:45,369 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 04:46:45,369 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 04:46:45,369 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 04:46:45,369 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 04:46:45,369 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 04:46:45,369 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 04:46:45,370 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 04:46:45,370 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 04:46:45,370 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 04:46:45,371 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 04:46:45,371 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 04:46:45,371 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 04:46:45,371 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 04:46:45,371 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 04:46:45,371 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-27 04:46:45,372 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-27 04:46:45,372 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-27 04:46:45,372 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 04:46:45,372 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 04:46:45,372 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 04:46:45,372 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 04:46:45,373 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 04:46:45,373 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 04:46:45,373 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 04:46:45,373 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 04:46:45,373 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 04:46:45,373 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 04:46:45,374 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 04:46:45,374 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 04:46:45,374 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan 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 -> Taipan 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 -> c8f17cf5334c3a5b079beafc57a2e2bffaea721f [2018-10-27 04:46:45,406 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 04:46:45,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 04:46:45,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 04:46:45,422 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 04:46:45,422 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 04:46:45,423 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2018-10-27 04:46:45,480 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan/data/3f43d5950/4b1992f06f674decb83c0fc9402645d5/FLAG23e0ff989 [2018-10-27 04:46:45,880 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 04:46:45,881 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2018-10-27 04:46:45,888 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan/data/3f43d5950/4b1992f06f674decb83c0fc9402645d5/FLAG23e0ff989 [2018-10-27 04:46:45,901 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan/data/3f43d5950/4b1992f06f674decb83c0fc9402645d5 [2018-10-27 04:46:45,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 04:46:45,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 04:46:45,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 04:46:45,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 04:46:45,910 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 04:46:45,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:46:45" (1/1) ... [2018-10-27 04:46:45,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e1c2bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:45, skipping insertion in model container [2018-10-27 04:46:45,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:46:45" (1/1) ... [2018-10-27 04:46:45,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 04:46:45,948 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 04:46:46,116 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 04:46:46,126 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 04:46:46,138 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 04:46:46,153 INFO L193 MainTranslator]: Completed translation [2018-10-27 04:46:46,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:46 WrapperNode [2018-10-27 04:46:46,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 04:46:46,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 04:46:46,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 04:46:46,155 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 04:46:46,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:46" (1/1) ... [2018-10-27 04:46:46,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:46" (1/1) ... [2018-10-27 04:46:46,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 04:46:46,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 04:46:46,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 04:46:46,193 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 04:46:46,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:46" (1/1) ... [2018-10-27 04:46:46,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:46" (1/1) ... [2018-10-27 04:46:46,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:46" (1/1) ... [2018-10-27 04:46:46,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:46" (1/1) ... [2018-10-27 04:46:46,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:46" (1/1) ... [2018-10-27 04:46:46,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:46" (1/1) ... [2018-10-27 04:46:46,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:46" (1/1) ... [2018-10-27 04:46:46,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 04:46:46,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 04:46:46,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 04:46:46,221 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 04:46:46,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 04:46:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 04:46:46,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 04:46:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 04:46:46,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 04:46:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 04:46:46,337 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 04:46:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-10-27 04:46:46,338 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-10-27 04:46:46,793 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 04:46:46,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:46:46 BoogieIcfgContainer [2018-10-27 04:46:46,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 04:46:46,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 04:46:46,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 04:46:46,797 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 04:46:46,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:46:45" (1/3) ... [2018-10-27 04:46:46,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369f5395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:46:46, skipping insertion in model container [2018-10-27 04:46:46,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:46" (2/3) ... [2018-10-27 04:46:46,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369f5395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:46:46, skipping insertion in model container [2018-10-27 04:46:46,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:46:46" (3/3) ... [2018-10-27 04:46:46,800 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers3_true-valid-memsafety.c [2018-10-27 04:46:46,810 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 04:46:46,817 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-10-27 04:46:46,833 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-10-27 04:46:46,856 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 04:46:46,856 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-27 04:46:46,856 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 04:46:46,856 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 04:46:46,857 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 04:46:46,857 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 04:46:46,857 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 04:46:46,858 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 04:46:46,873 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-10-27 04:46:46,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 04:46:46,885 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:46:46,886 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:46:46,889 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-27 04:46:46,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:46,895 INFO L82 PathProgramCache]: Analyzing trace with hash -376627576, now seen corresponding path program 1 times [2018-10-27 04:46:46,897 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:46:46,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:46,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:46,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:46,936 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:46:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:47,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:47,091 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 04:46:47,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 04:46:47,091 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 04:46:47,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 04:46:47,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 04:46:47,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 04:46:47,108 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 4 states. [2018-10-27 04:46:47,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:46:47,326 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2018-10-27 04:46:47,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 04:46:47,328 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-10-27 04:46:47,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:46:47,337 INFO L225 Difference]: With dead ends: 30 [2018-10-27 04:46:47,337 INFO L226 Difference]: Without dead ends: 26 [2018-10-27 04:46:47,338 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 04:46:47,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-10-27 04:46:47,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2018-10-27 04:46:47,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-10-27 04:46:47,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-10-27 04:46:47,367 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 10 [2018-10-27 04:46:47,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:46:47,367 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-10-27 04:46:47,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 04:46:47,368 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-10-27 04:46:47,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 04:46:47,368 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:46:47,368 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:46:47,369 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-27 04:46:47,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:47,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1209447088, now seen corresponding path program 1 times [2018-10-27 04:46:47,371 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:46:47,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:47,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:47,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:47,373 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:46:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:47,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:47,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 04:46:47,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 04:46:47,609 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 04:46:47,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 04:46:47,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 04:46:47,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-27 04:46:47,611 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 5 states. [2018-10-27 04:46:47,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:46:47,903 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-10-27 04:46:47,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 04:46:47,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-10-27 04:46:47,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:46:47,905 INFO L225 Difference]: With dead ends: 26 [2018-10-27 04:46:47,905 INFO L226 Difference]: Without dead ends: 26 [2018-10-27 04:46:47,905 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-27 04:46:47,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-10-27 04:46:47,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-10-27 04:46:47,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-10-27 04:46:47,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-10-27 04:46:47,910 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 11 [2018-10-27 04:46:47,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:46:47,910 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-10-27 04:46:47,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 04:46:47,910 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-10-27 04:46:47,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-27 04:46:47,911 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:46:47,911 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:46:47,911 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-27 04:46:47,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:47,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1139078641, now seen corresponding path program 1 times [2018-10-27 04:46:47,911 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:46:47,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:47,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:47,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:47,913 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:46:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:48,103 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:48,104 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:46:48,104 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 04:46:48,105 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-10-27 04:46:48,106 INFO L202 CegarAbsIntRunner]: [0], [1], [13], [17], [22], [24], [25], [26], [28], [34], [35], [36], [38] [2018-10-27 04:46:48,150 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 04:46:48,150 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 04:46:48,708 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 04:46:48,709 INFO L272 AbstractInterpreter]: Visited 13 different actions 61 times. Merged at 6 different actions 48 times. Widened at 1 different actions 4 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 04:46:48,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:48,720 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 04:46:48,720 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:46:48,720 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 04:46:48,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:48,731 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 04:46:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:48,790 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:46:48,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-27 04:46:48,864 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-27 04:46:48,874 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:46:48,874 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2018-10-27 04:46:49,042 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:49,043 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 04:46:49,532 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-27 04:46:49,581 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:49,616 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 04:46:49,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2018-10-27 04:46:49,616 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 04:46:49,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 04:46:49,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 04:46:49,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-10-27 04:46:49,618 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 10 states. [2018-10-27 04:46:49,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:46:49,902 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2018-10-27 04:46:49,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 04:46:49,903 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2018-10-27 04:46:49,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:46:49,904 INFO L225 Difference]: With dead ends: 35 [2018-10-27 04:46:49,904 INFO L226 Difference]: Without dead ends: 35 [2018-10-27 04:46:49,905 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2018-10-27 04:46:49,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-10-27 04:46:49,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 27. [2018-10-27 04:46:49,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-10-27 04:46:49,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-10-27 04:46:49,909 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 16 [2018-10-27 04:46:49,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:46:49,911 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-10-27 04:46:49,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 04:46:49,911 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-10-27 04:46:49,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-27 04:46:49,911 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:46:49,912 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:46:49,912 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-27 04:46:49,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:49,912 INFO L82 PathProgramCache]: Analyzing trace with hash -894489702, now seen corresponding path program 1 times [2018-10-27 04:46:49,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:46:49,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:49,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:49,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:49,914 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:46:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:50,034 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-27 04:46:50,034 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:46:50,034 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 04:46:50,035 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 25 with the following transitions: [2018-10-27 04:46:50,035 INFO L202 CegarAbsIntRunner]: [0], [1], [6], [7], [13], [17], [20], [22], [24], [26], [28], [32], [33], [34], [35], [36], [38], [39] [2018-10-27 04:46:50,036 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 04:46:50,036 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 04:46:50,274 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 04:46:50,275 INFO L272 AbstractInterpreter]: Visited 18 different actions 66 times. Merged at 5 different actions 40 times. Widened at 1 different actions 4 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 04:46:50,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:50,305 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 04:46:50,305 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:46:50,305 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 04:46:50,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:50,313 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 04:46:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:50,355 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:46:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:50,481 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 04:46:50,761 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:50,781 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 04:46:50,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 14 [2018-10-27 04:46:50,782 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 04:46:50,782 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-27 04:46:50,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-27 04:46:50,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-10-27 04:46:50,783 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 11 states. [2018-10-27 04:46:51,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:46:51,004 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-10-27 04:46:51,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-27 04:46:51,006 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2018-10-27 04:46:51,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:46:51,007 INFO L225 Difference]: With dead ends: 34 [2018-10-27 04:46:51,007 INFO L226 Difference]: Without dead ends: 34 [2018-10-27 04:46:51,007 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2018-10-27 04:46:51,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-27 04:46:51,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2018-10-27 04:46:51,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-27 04:46:51,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-10-27 04:46:51,010 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 24 [2018-10-27 04:46:51,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:46:51,010 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-10-27 04:46:51,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-27 04:46:51,011 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-10-27 04:46:51,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-27 04:46:51,011 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:46:51,011 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:46:51,012 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-27 04:46:51,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:51,012 INFO L82 PathProgramCache]: Analyzing trace with hash 67716431, now seen corresponding path program 1 times [2018-10-27 04:46:51,012 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:46:51,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:51,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:51,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:51,013 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:46:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:51,130 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:51,130 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:46:51,130 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 04:46:51,130 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 31 with the following transitions: [2018-10-27 04:46:51,130 INFO L202 CegarAbsIntRunner]: [0], [1], [6], [8], [9], [13], [17], [20], [22], [24], [26], [28], [32], [33], [34], [35], [36], [38], [39] [2018-10-27 04:46:51,132 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 04:46:51,132 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 04:46:51,361 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 04:46:51,361 INFO L272 AbstractInterpreter]: Visited 19 different actions 67 times. Merged at 5 different actions 40 times. Widened at 1 different actions 4 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 04:46:51,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:51,406 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 04:46:51,406 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:46:51,406 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-10-27 04:46:51,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:51,417 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 04:46:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:51,453 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:46:51,551 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:51,551 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 04:46:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:51,636 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 04:46:51,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2018-10-27 04:46:51,636 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 04:46:51,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 04:46:51,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 04:46:51,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-10-27 04:46:51,637 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 7 states. [2018-10-27 04:46:51,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:46:51,667 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-10-27 04:46:51,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 04:46:51,668 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-10-27 04:46:51,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:46:51,669 INFO L225 Difference]: With dead ends: 39 [2018-10-27 04:46:51,669 INFO L226 Difference]: Without dead ends: 39 [2018-10-27 04:46:51,670 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-10-27 04:46:51,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-27 04:46:51,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-10-27 04:46:51,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-10-27 04:46:51,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-10-27 04:46:51,676 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 30 [2018-10-27 04:46:51,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:46:51,676 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-10-27 04:46:51,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 04:46:51,676 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-10-27 04:46:51,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-27 04:46:51,678 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:46:51,679 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:46:51,679 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-27 04:46:51,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:51,679 INFO L82 PathProgramCache]: Analyzing trace with hash -726822802, now seen corresponding path program 2 times [2018-10-27 04:46:51,679 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:46:51,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:51,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:51,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:51,680 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:46:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:51,799 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:51,800 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:46:51,800 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 04:46:51,800 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-10-27 04:46:51,800 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 04:46:51,800 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:46:51,800 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-10-27 04:46:51,821 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-27 04:46:51,822 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 04:46:51,857 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2018-10-27 04:46:51,858 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 04:46:51,865 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:46:51,894 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-27 04:46:51,894 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-27 04:46:51,967 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:46:51,967 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2018-10-27 04:46:52,035 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-10-27 04:46:52,035 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 04:46:52,186 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-10-27 04:46:52,219 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-27 04:46:52,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [7] total 15 [2018-10-27 04:46:52,219 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 04:46:52,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 04:46:52,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 04:46:52,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2018-10-27 04:46:52,220 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 6 states. [2018-10-27 04:46:52,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:46:52,283 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-10-27 04:46:52,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 04:46:52,283 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-10-27 04:46:52,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:46:52,284 INFO L225 Difference]: With dead ends: 35 [2018-10-27 04:46:52,284 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 04:46:52,284 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2018-10-27 04:46:52,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 04:46:52,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 04:46:52,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 04:46:52,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 04:46:52,285 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2018-10-27 04:46:52,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:46:52,285 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 04:46:52,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 04:46:52,285 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 04:46:52,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 04:46:52,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 04:46:52 BoogieIcfgContainer [2018-10-27 04:46:52,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 04:46:52,290 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 04:46:52,290 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 04:46:52,290 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 04:46:52,290 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:46:46" (3/4) ... [2018-10-27 04:46:52,293 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 04:46:52,299 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 04:46:52,300 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 04:46:52,300 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-10-27 04:46:52,305 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2018-10-27 04:46:52,305 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-10-27 04:46:52,305 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-10-27 04:46:52,305 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 04:46:52,346 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c9414d6a-6434-4fbf-8b82-94d6eaa32c5a/bin-2019/utaipan/witness.graphml [2018-10-27 04:46:52,347 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 04:46:52,348 INFO L168 Benchmark]: Toolchain (without parser) took 6442.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.9 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -137.0 MB). Peak memory consumption was 65.9 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:52,348 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 04:46:52,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.87 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 947.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:52,349 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.21 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 04:46:52,349 INFO L168 Benchmark]: Boogie Preprocessor took 27.60 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:52,350 INFO L168 Benchmark]: RCFGBuilder took 572.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:52,350 INFO L168 Benchmark]: TraceAbstraction took 5495.13 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 43.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.3 MB). Peak memory consumption was 85.8 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:52,351 INFO L168 Benchmark]: Witness Printer took 57.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-10-27 04:46:52,356 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 247.87 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 947.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.21 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.60 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 572.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5495.13 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 43.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.3 MB). Peak memory consumption was 85.8 MB. Max. memory is 11.5 GB. * Witness Printer took 57.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: 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, 27 locations, 5 error locations. SAFE Result, 5.4s OverallTime, 6 OverallIterations, 5 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 94 SDtfs, 173 SDslu, 199 SDs, 0 SdLazy, 245 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 258 GetRequests, 188 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.1s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 20 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 231 NumberOfCodeBlocks, 211 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 37332 SizeOfPredicates, 17 NumberOfNonLiveVariables, 469 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 85/216 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...