./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_false-valid-deref.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_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_false-valid-deref.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/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 1b1751fe95f9cf655681429038c1cde9e9c074e8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 06:15:07,345 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:15:07,347 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:15:07,355 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:15:07,355 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:15:07,356 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:15:07,357 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:15:07,359 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:15:07,360 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:15:07,361 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:15:07,362 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:15:07,362 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:15:07,363 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:15:07,364 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:15:07,364 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:15:07,365 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:15:07,366 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:15:07,367 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:15:07,369 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:15:07,370 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:15:07,371 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:15:07,372 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:15:07,374 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:15:07,374 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:15:07,374 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:15:07,375 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:15:07,376 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:15:07,377 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:15:07,378 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:15:07,378 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:15:07,379 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:15:07,379 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:15:07,379 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:15:07,380 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:15:07,381 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:15:07,381 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:15:07,381 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-10 06:15:07,393 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:15:07,393 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:15:07,394 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 06:15:07,395 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 06:15:07,395 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 06:15:07,395 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:15:07,395 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 06:15:07,395 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 06:15:07,396 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 06:15:07,396 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 06:15:07,396 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:15:07,396 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-10 06:15:07,396 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-10 06:15:07,396 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-10 06:15:07,396 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 06:15:07,397 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 06:15:07,397 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:15:07,397 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 06:15:07,397 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 06:15:07,397 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 06:15:07,398 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:15:07,398 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:15:07,398 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 06:15:07,398 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 06:15:07,398 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 06:15:07,398 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_9a378b8e-d4fb-4893-8547-158491069133/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 -> 1b1751fe95f9cf655681429038c1cde9e9c074e8 [2018-11-10 06:15:07,427 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:15:07,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:15:07,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:15:07,442 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:15:07,443 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:15:07,443 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext3/getNumbers1_false-valid-deref.c [2018-11-10 06:15:07,489 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/data/b3f977bc1/fe41a1c1693e4fb6afa87c5379d8ae44/FLAGa76203cb8 [2018-11-10 06:15:07,858 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:15:07,858 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/sv-benchmarks/c/memsafety-ext3/getNumbers1_false-valid-deref.c [2018-11-10 06:15:07,865 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/data/b3f977bc1/fe41a1c1693e4fb6afa87c5379d8ae44/FLAGa76203cb8 [2018-11-10 06:15:07,876 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/data/b3f977bc1/fe41a1c1693e4fb6afa87c5379d8ae44 [2018-11-10 06:15:07,879 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:15:07,880 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 06:15:07,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:15:07,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:15:07,885 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:15:07,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:15:07" (1/1) ... [2018-11-10 06:15:07,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18da3d15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:15:07, skipping insertion in model container [2018-11-10 06:15:07,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:15:07" (1/1) ... [2018-11-10 06:15:07,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:15:07,921 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:15:08,067 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:15:08,075 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:15:08,088 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:15:08,103 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:15:08,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:15:08 WrapperNode [2018-11-10 06:15:08,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:15:08,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:15:08,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:15:08,105 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:15:08,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:15:08" (1/1) ... [2018-11-10 06:15:08,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:15:08" (1/1) ... [2018-11-10 06:15:08,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:15:08" (1/1) ... [2018-11-10 06:15:08,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:15:08" (1/1) ... [2018-11-10 06:15:08,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:15:08" (1/1) ... [2018-11-10 06:15:08,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:15:08" (1/1) ... [2018-11-10 06:15:08,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:15:08" (1/1) ... [2018-11-10 06:15:08,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:15:08,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:15:08,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:15:08,137 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:15:08,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:15:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/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 06:15:08,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 06:15:08,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:15:08,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-10 06:15:08,238 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 06:15:08,238 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2018-11-10 06:15:08,238 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-10 06:15:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-10 06:15:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 06:15:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 06:15:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 06:15:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 06:15:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 06:15:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 06:15:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:15:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 06:15:08,412 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:15:08,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:15:08 BoogieIcfgContainer [2018-11-10 06:15:08,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:15:08,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 06:15:08,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 06:15:08,417 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 06:15:08,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:15:07" (1/3) ... [2018-11-10 06:15:08,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@345abd30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:15:08, skipping insertion in model container [2018-11-10 06:15:08,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:15:08" (2/3) ... [2018-11-10 06:15:08,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@345abd30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:15:08, skipping insertion in model container [2018-11-10 06:15:08,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:15:08" (3/3) ... [2018-11-10 06:15:08,420 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers1_false-valid-deref.c [2018-11-10 06:15:08,431 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 06:15:08,438 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-10 06:15:08,454 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-10 06:15:08,473 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 06:15:08,474 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 06:15:08,474 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-10 06:15:08,474 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 06:15:08,474 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 06:15:08,475 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 06:15:08,475 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 06:15:08,475 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 06:15:08,475 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 06:15:08,486 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-11-10 06:15:08,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 06:15:08,494 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:15:08,495 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:15:08,498 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 06:15:08,505 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:15:08,505 INFO L82 PathProgramCache]: Analyzing trace with hash 657642178, now seen corresponding path program 1 times [2018-11-10 06:15:08,507 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:15:08,507 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:15:08,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:08,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:15:08,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:15:08,664 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 06:15:08,666 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:15:08,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 06:15:08,670 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 06:15:08,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 06:15:08,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:15:08,683 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 4 states. [2018-11-10 06:15:08,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:15:08,762 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-11-10 06:15:08,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 06:15:08,764 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-11-10 06:15:08,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:15:08,771 INFO L225 Difference]: With dead ends: 34 [2018-11-10 06:15:08,771 INFO L226 Difference]: Without dead ends: 31 [2018-11-10 06:15:08,773 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 [2018-11-10 06:15:08,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-10 06:15:08,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-10 06:15:08,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-10 06:15:08,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-11-10 06:15:08,807 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 13 [2018-11-10 06:15:08,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:15:08,808 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-11-10 06:15:08,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 06:15:08,808 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-11-10 06:15:08,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 06:15:08,808 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:15:08,808 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:15:08,809 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 06:15:08,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:15:08,809 INFO L82 PathProgramCache]: Analyzing trace with hash 657642179, now seen corresponding path program 1 times [2018-11-10 06:15:08,809 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:15:08,809 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:15:08,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:08,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:15:08,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:08,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:15:08,921 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 06:15:08,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:15:08,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 06:15:08,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 06:15:08,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 06:15:08,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:15:08,924 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 4 states. [2018-11-10 06:15:08,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:15:08,995 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2018-11-10 06:15:08,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 06:15:08,996 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-11-10 06:15:08,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:15:08,997 INFO L225 Difference]: With dead ends: 35 [2018-11-10 06:15:08,997 INFO L226 Difference]: Without dead ends: 35 [2018-11-10 06:15:08,998 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 06:15:08,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-10 06:15:09,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2018-11-10 06:15:09,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 06:15:09,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2018-11-10 06:15:09,003 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 13 [2018-11-10 06:15:09,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:15:09,003 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2018-11-10 06:15:09,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 06:15:09,004 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-11-10 06:15:09,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 06:15:09,004 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:15:09,004 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:15:09,005 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 06:15:09,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:15:09,005 INFO L82 PathProgramCache]: Analyzing trace with hash -668039334, now seen corresponding path program 1 times [2018-11-10 06:15:09,005 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:15:09,005 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:15:09,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:09,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:15:09,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:15:09,178 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:09,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:15:09,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 06:15:09,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 06:15:09,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 06:15:09,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-10 06:15:09,180 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 7 states. [2018-11-10 06:15:09,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:15:09,308 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-11-10 06:15:09,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 06:15:09,309 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-11-10 06:15:09,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:15:09,310 INFO L225 Difference]: With dead ends: 34 [2018-11-10 06:15:09,311 INFO L226 Difference]: Without dead ends: 34 [2018-11-10 06:15:09,311 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-11-10 06:15:09,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-10 06:15:09,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2018-11-10 06:15:09,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-10 06:15:09,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-11-10 06:15:09,317 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 17 [2018-11-10 06:15:09,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:15:09,317 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-11-10 06:15:09,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 06:15:09,317 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-11-10 06:15:09,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 06:15:09,318 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:15:09,318 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:15:09,319 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 06:15:09,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:15:09,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1047004081, now seen corresponding path program 1 times [2018-11-10 06:15:09,319 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:15:09,319 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:15:09,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:09,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:15:09,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:15:09,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:09,365 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:15:09,365 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:15:09,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:15:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:15:09,403 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:15:09,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:09,466 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 06:15:09,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-11-10 06:15:09,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 06:15:09,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 06:15:09,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 06:15:09,467 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 5 states. [2018-11-10 06:15:09,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:15:09,531 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2018-11-10 06:15:09,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 06:15:09,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-11-10 06:15:09,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:15:09,533 INFO L225 Difference]: With dead ends: 38 [2018-11-10 06:15:09,534 INFO L226 Difference]: Without dead ends: 38 [2018-11-10 06:15:09,534 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 06:15:09,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-10 06:15:09,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2018-11-10 06:15:09,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 06:15:09,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2018-11-10 06:15:09,539 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 25 [2018-11-10 06:15:09,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:15:09,540 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2018-11-10 06:15:09,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 06:15:09,540 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2018-11-10 06:15:09,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-10 06:15:09,541 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:15:09,541 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:15:09,542 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 06:15:09,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:15:09,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1578203546, now seen corresponding path program 2 times [2018-11-10 06:15:09,543 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:15:09,543 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:15:09,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:09,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:15:09,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:15:09,616 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:09,616 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:15:09,617 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:15:09,630 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 06:15:09,665 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 06:15:09,665 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 06:15:09,668 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:15:09,691 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:09,712 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 06:15:09,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-11-10 06:15:09,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 06:15:09,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 06:15:09,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-10 06:15:09,714 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 6 states. [2018-11-10 06:15:09,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:15:09,752 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2018-11-10 06:15:09,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 06:15:09,753 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2018-11-10 06:15:09,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:15:09,754 INFO L225 Difference]: With dead ends: 42 [2018-11-10 06:15:09,754 INFO L226 Difference]: Without dead ends: 42 [2018-11-10 06:15:09,754 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-10 06:15:09,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-10 06:15:09,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2018-11-10 06:15:09,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-10 06:15:09,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2018-11-10 06:15:09,758 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 29 [2018-11-10 06:15:09,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:15:09,758 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2018-11-10 06:15:09,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 06:15:09,758 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-11-10 06:15:09,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 06:15:09,759 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:15:09,759 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:15:09,760 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 06:15:09,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:15:09,760 INFO L82 PathProgramCache]: Analyzing trace with hash 20196605, now seen corresponding path program 3 times [2018-11-10 06:15:09,760 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:15:09,760 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:15:09,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:09,761 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 06:15:09,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:15:09,804 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:09,804 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:15:09,804 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:15:09,817 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-10 06:15:09,851 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-10 06:15:09,852 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 06:15:09,854 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:15:09,887 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:09,909 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 06:15:09,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-10 06:15:09,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 06:15:09,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 06:15:09,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-10 06:15:09,910 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 7 states. [2018-11-10 06:15:09,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:15:09,941 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2018-11-10 06:15:09,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 06:15:09,942 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-10 06:15:09,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:15:09,943 INFO L225 Difference]: With dead ends: 46 [2018-11-10 06:15:09,943 INFO L226 Difference]: Without dead ends: 46 [2018-11-10 06:15:09,944 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-10 06:15:09,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-10 06:15:09,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2018-11-10 06:15:09,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 06:15:09,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2018-11-10 06:15:09,949 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 33 [2018-11-10 06:15:09,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:15:09,949 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2018-11-10 06:15:09,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 06:15:09,950 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2018-11-10 06:15:09,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-10 06:15:09,951 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:15:09,951 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:15:09,951 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 06:15:09,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:15:09,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1636216852, now seen corresponding path program 4 times [2018-11-10 06:15:09,952 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:15:09,952 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:15:09,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:09,953 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 06:15:09,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:15:10,028 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:10,028 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:15:10,029 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:15:10,041 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-10 06:15:10,064 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-10 06:15:10,064 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 06:15:10,067 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:15:10,098 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:10,120 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 06:15:10,120 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2018-11-10 06:15:10,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 06:15:10,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 06:15:10,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-10 06:15:10,121 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 8 states. [2018-11-10 06:15:10,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:15:10,183 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2018-11-10 06:15:10,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 06:15:10,184 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-11-10 06:15:10,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:15:10,185 INFO L225 Difference]: With dead ends: 50 [2018-11-10 06:15:10,185 INFO L226 Difference]: Without dead ends: 50 [2018-11-10 06:15:10,187 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-10 06:15:10,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-10 06:15:10,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2018-11-10 06:15:10,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-10 06:15:10,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2018-11-10 06:15:10,192 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 37 [2018-11-10 06:15:10,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:15:10,192 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2018-11-10 06:15:10,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 06:15:10,192 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2018-11-10 06:15:10,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-10 06:15:10,195 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:15:10,195 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:15:10,196 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 06:15:10,196 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:15:10,196 INFO L82 PathProgramCache]: Analyzing trace with hash -2145136725, now seen corresponding path program 5 times [2018-11-10 06:15:10,196 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:15:10,196 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:15:10,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:10,197 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 06:15:10,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:15:10,284 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:10,284 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:15:10,284 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:15:10,291 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-10 06:15:10,318 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-11-10 06:15:10,318 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 06:15:10,321 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:15:10,346 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:10,366 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 06:15:10,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-11-10 06:15:10,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 06:15:10,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 06:15:10,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-10 06:15:10,368 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 9 states. [2018-11-10 06:15:10,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:15:10,412 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2018-11-10 06:15:10,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 06:15:10,412 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-11-10 06:15:10,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:15:10,414 INFO L225 Difference]: With dead ends: 54 [2018-11-10 06:15:10,414 INFO L226 Difference]: Without dead ends: 54 [2018-11-10 06:15:10,414 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-10 06:15:10,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-10 06:15:10,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2018-11-10 06:15:10,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-10 06:15:10,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2018-11-10 06:15:10,420 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 41 [2018-11-10 06:15:10,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:15:10,420 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2018-11-10 06:15:10,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 06:15:10,420 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2018-11-10 06:15:10,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-10 06:15:10,423 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:15:10,423 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:15:10,424 INFO L424 AbstractCegarLoop]: === Iteration 9 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 06:15:10,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:15:10,424 INFO L82 PathProgramCache]: Analyzing trace with hash -982955070, now seen corresponding path program 6 times [2018-11-10 06:15:10,424 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:15:10,424 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:15:10,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:10,425 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 06:15:10,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:15:10,524 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:10,524 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:15:10,524 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:15:10,543 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-11-10 06:15:10,590 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-11-10 06:15:10,591 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 06:15:10,594 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:15:10,614 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:10,637 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 06:15:10,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2018-11-10 06:15:10,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 06:15:10,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 06:15:10,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-11-10 06:15:10,638 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand 10 states. [2018-11-10 06:15:10,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:15:10,678 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2018-11-10 06:15:10,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 06:15:10,682 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2018-11-10 06:15:10,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:15:10,683 INFO L225 Difference]: With dead ends: 58 [2018-11-10 06:15:10,683 INFO L226 Difference]: Without dead ends: 58 [2018-11-10 06:15:10,683 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-11-10 06:15:10,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-10 06:15:10,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2018-11-10 06:15:10,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-10 06:15:10,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2018-11-10 06:15:10,687 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 45 [2018-11-10 06:15:10,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:15:10,688 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2018-11-10 06:15:10,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 06:15:10,688 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2018-11-10 06:15:10,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-10 06:15:10,689 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:15:10,689 INFO L375 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:15:10,691 INFO L424 AbstractCegarLoop]: === Iteration 10 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 06:15:10,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:15:10,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1261116327, now seen corresponding path program 7 times [2018-11-10 06:15:10,692 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:15:10,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:15:10,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:10,693 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 06:15:10,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:15:10,784 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:10,785 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:15:10,785 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:15:10,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:15:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:15:10,838 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:15:10,878 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:10,911 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 06:15:10,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2018-11-10 06:15:10,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 06:15:10,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 06:15:10,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-10 06:15:10,913 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 11 states. [2018-11-10 06:15:10,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:15:10,962 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2018-11-10 06:15:10,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 06:15:10,964 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 49 [2018-11-10 06:15:10,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:15:10,965 INFO L225 Difference]: With dead ends: 62 [2018-11-10 06:15:10,965 INFO L226 Difference]: Without dead ends: 62 [2018-11-10 06:15:10,965 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-10 06:15:10,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-11-10 06:15:10,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2018-11-10 06:15:10,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-11-10 06:15:10,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2018-11-10 06:15:10,972 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 49 [2018-11-10 06:15:10,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:15:10,972 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2018-11-10 06:15:10,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 06:15:10,972 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2018-11-10 06:15:10,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-10 06:15:10,973 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:15:10,975 INFO L375 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:15:10,975 INFO L424 AbstractCegarLoop]: === Iteration 11 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 06:15:10,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:15:10,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1560566128, now seen corresponding path program 8 times [2018-11-10 06:15:10,976 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:15:10,976 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:15:10,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:10,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:15:10,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:15:11,062 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:11,063 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:15:11,063 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:15:11,074 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 06:15:11,097 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 06:15:11,098 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 06:15:11,100 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:15:11,118 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:11,141 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 06:15:11,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2018-11-10 06:15:11,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-10 06:15:11,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-10 06:15:11,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-11-10 06:15:11,143 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 12 states. [2018-11-10 06:15:11,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:15:11,219 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2018-11-10 06:15:11,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 06:15:11,220 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2018-11-10 06:15:11,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:15:11,221 INFO L225 Difference]: With dead ends: 66 [2018-11-10 06:15:11,221 INFO L226 Difference]: Without dead ends: 66 [2018-11-10 06:15:11,221 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-11-10 06:15:11,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-10 06:15:11,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-11-10 06:15:11,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-10 06:15:11,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2018-11-10 06:15:11,225 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 53 [2018-11-10 06:15:11,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:15:11,225 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2018-11-10 06:15:11,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-10 06:15:11,225 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2018-11-10 06:15:11,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-10 06:15:11,226 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:15:11,226 INFO L375 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:15:11,227 INFO L424 AbstractCegarLoop]: === Iteration 12 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 06:15:11,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:15:11,227 INFO L82 PathProgramCache]: Analyzing trace with hash -944411897, now seen corresponding path program 9 times [2018-11-10 06:15:11,227 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:15:11,227 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:15:11,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:11,228 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 06:15:11,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:15:11,344 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:11,344 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:15:11,344 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:15:11,354 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-10 06:15:11,465 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-11-10 06:15:11,466 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 06:15:11,469 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:15:11,490 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:15:11,514 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 06:15:11,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2018-11-10 06:15:11,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-10 06:15:11,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-10 06:15:11,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-11-10 06:15:11,515 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand 13 states. [2018-11-10 06:15:11,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:15:11,554 INFO L93 Difference]: Finished difference Result 68 states and 69 transitions. [2018-11-10 06:15:11,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-10 06:15:11,555 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 57 [2018-11-10 06:15:11,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:15:11,556 INFO L225 Difference]: With dead ends: 68 [2018-11-10 06:15:11,556 INFO L226 Difference]: Without dead ends: 68 [2018-11-10 06:15:11,556 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-11-10 06:15:11,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-11-10 06:15:11,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-11-10 06:15:11,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-10 06:15:11,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2018-11-10 06:15:11,561 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 57 [2018-11-10 06:15:11,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:15:11,561 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2018-11-10 06:15:11,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-10 06:15:11,562 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2018-11-10 06:15:11,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-10 06:15:11,562 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:15:11,563 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:15:11,563 INFO L424 AbstractCegarLoop]: === Iteration 13 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-10 06:15:11,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:15:11,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1774573854, now seen corresponding path program 10 times [2018-11-10 06:15:11,564 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:15:11,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:15:11,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:11,565 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 06:15:11,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:15:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:15:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:15:11,625 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 06:15:11,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:15:11 BoogieIcfgContainer [2018-11-10 06:15:11,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 06:15:11,666 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 06:15:11,666 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 06:15:11,666 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 06:15:11,667 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:15:08" (3/4) ... [2018-11-10 06:15:11,671 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 06:15:11,731 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9a378b8e-d4fb-4893-8547-158491069133/bin-2019/uautomizer/witness.graphml [2018-11-10 06:15:11,731 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 06:15:11,732 INFO L168 Benchmark]: Toolchain (without parser) took 3852.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.2 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. [2018-11-10 06:15:11,734 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:15:11,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.15 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 06:15:11,735 INFO L168 Benchmark]: Boogie Preprocessor took 31.97 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 06:15:11,735 INFO L168 Benchmark]: RCFGBuilder took 275.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:15:11,736 INFO L168 Benchmark]: TraceAbstraction took 3252.18 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -16.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 11.5 GB. [2018-11-10 06:15:11,736 INFO L168 Benchmark]: Witness Printer took 65.07 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: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. [2018-11-10 06:15:11,741 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 223.15 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 31.97 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 275.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3252.18 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -16.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 11.5 GB. * Witness Printer took 65.07 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: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L22] FCALL "%d\n" VAL ["%d\n"={106:0}, \old("%d\n")=104, \old("%d\n")=102] [L19] CALL, EXPR getNumbers() VAL ["%d\n"={106:0}] [L8] EXPR, FCALL alloca(10 * sizeof(int)) VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}] [L8] int *array = alloca(10 * sizeof(int)); [L10] int i = 0; VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=0] [L10] COND TRUE i < 10 VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=0] [L11] FCALL array[i] = i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=0] [L10] ++i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=1] [L10] COND TRUE i < 10 VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=1] [L11] FCALL array[i] = i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=1] [L10] ++i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=2] [L10] COND TRUE i < 10 VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=2] [L11] FCALL array[i] = i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=2] [L10] ++i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=3] [L10] COND TRUE i < 10 VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=3] [L11] FCALL array[i] = i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=3] [L10] ++i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=4] [L10] COND TRUE i < 10 VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=4] [L11] FCALL array[i] = i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=4] [L10] ++i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=5] [L10] COND TRUE i < 10 VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=5] [L11] FCALL array[i] = i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=5] [L10] ++i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=6] [L10] COND TRUE i < 10 VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=6] [L11] FCALL array[i] = i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=6] [L10] ++i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=7] [L10] COND TRUE i < 10 VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=7] [L11] FCALL array[i] = i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=7] [L10] ++i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=8] [L10] COND TRUE i < 10 VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=8] [L11] FCALL array[i] = i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=8] [L10] ++i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=9] [L10] COND TRUE i < 10 VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=9] [L11] FCALL array[i] = i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=9] [L10] ++i VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=10] [L10] COND FALSE !(i < 10) VAL ["%d\n"={106:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=10] [L14] RET return array; VAL ["%d\n"={106:0}, \result={103:0}, alloca(10 * sizeof(int))={103:0}, array={103:0}, i=10] [L19] EXPR getNumbers() VAL ["%d\n"={106:0}, getNumbers()={103:0}] [L19] int *numbers = getNumbers(); [L21] int i = 0; VAL ["%d\n"={106:0}, i=0, numbers={103:0}] [L21] COND TRUE i < 10 [L22] FCALL numbers + i - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 35 locations, 5 error locations. UNSAFE Result, 3.1s OverallTime, 13 OverallIterations, 11 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 333 SDtfs, 162 SDslu, 1296 SDs, 0 SdLazy, 317 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 450 GetRequests, 372 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=12, 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, 12 MinimizatonAttempts, 19 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 842 NumberOfCodeBlocks, 840 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 760 ConstructedInterpolants, 0 QuantifiedInterpolants, 68988 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1198 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 21 InterpolantComputations, 3 PerfectInterpolantSequences, 3/1143 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...