./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_0e874b00-70f5-444a-8bfa-f85772c0c772/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/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_0e874b00-70f5-444a-8bfa-f85772c0c772/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/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 [2018-10-27 04:45:30,776 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 04:45:30,777 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 04:45:30,793 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 04:45:30,793 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 04:45:30,794 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 04:45:30,796 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 04:45:30,797 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 04:45:30,798 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 04:45:30,799 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 04:45:30,800 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 04:45:30,800 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 04:45:30,801 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 04:45:30,802 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 04:45:30,803 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 04:45:30,804 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 04:45:30,805 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 04:45:30,806 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 04:45:30,808 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 04:45:30,809 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 04:45:30,810 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 04:45:30,812 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 04:45:30,813 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 04:45:30,814 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 04:45:30,814 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 04:45:30,815 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 04:45:30,816 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 04:45:30,816 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 04:45:30,817 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 04:45:30,818 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 04:45:30,818 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 04:45:30,819 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 04:45:30,820 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 04:45:30,820 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 04:45:30,821 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 04:45:30,821 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 04:45:30,821 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-10-27 04:45:30,833 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 04:45:30,833 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 04:45:30,834 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 04:45:30,834 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 04:45:30,834 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 04:45:30,834 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 04:45:30,834 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 04:45:30,835 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 04:45:30,835 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 04:45:30,836 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 04:45:30,836 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 04:45:30,836 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-27 04:45:30,836 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-27 04:45:30,836 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-27 04:45:30,836 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 04:45:30,836 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 04:45:30,837 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 04:45:30,837 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 04:45:30,837 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 04:45:30,837 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 04:45:30,837 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 04:45:30,837 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 04:45:30,837 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 04:45:30,837 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 04:45:30,838 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 04:45:30,838 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_0e874b00-70f5-444a-8bfa-f85772c0c772/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 [2018-10-27 04:45:30,868 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 04:45:30,878 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 04:45:30,881 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 04:45:30,882 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 04:45:30,883 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 04:45:30,884 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext3/getNumbers1_false-valid-deref.c [2018-10-27 04:45:30,929 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/bin-2019/uautomizer/data/fb83aa33d/6e92dc4c65c44a9d85bf0586de977b24/FLAGd79bf55ce [2018-10-27 04:45:31,335 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 04:45:31,336 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/sv-benchmarks/c/memsafety-ext3/getNumbers1_false-valid-deref.c [2018-10-27 04:45:31,341 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/bin-2019/uautomizer/data/fb83aa33d/6e92dc4c65c44a9d85bf0586de977b24/FLAGd79bf55ce [2018-10-27 04:45:31,353 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/bin-2019/uautomizer/data/fb83aa33d/6e92dc4c65c44a9d85bf0586de977b24 [2018-10-27 04:45:31,356 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 04:45:31,357 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 04:45:31,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 04:45:31,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 04:45:31,367 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 04:45:31,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:45:31" (1/1) ... [2018-10-27 04:45:31,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@267e2a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:31, skipping insertion in model container [2018-10-27 04:45:31,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:45:31" (1/1) ... [2018-10-27 04:45:31,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 04:45:31,397 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 04:45:31,514 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 04:45:31,521 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 04:45:31,533 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 04:45:31,543 INFO L193 MainTranslator]: Completed translation [2018-10-27 04:45:31,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:31 WrapperNode [2018-10-27 04:45:31,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 04:45:31,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 04:45:31,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 04:45:31,544 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 04:45:31,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:31" (1/1) ... [2018-10-27 04:45:31,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:31" (1/1) ... [2018-10-27 04:45:31,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:31" (1/1) ... [2018-10-27 04:45:31,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:31" (1/1) ... [2018-10-27 04:45:31,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:31" (1/1) ... [2018-10-27 04:45:31,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:31" (1/1) ... [2018-10-27 04:45:31,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:31" (1/1) ... [2018-10-27 04:45:31,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 04:45:31,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 04:45:31,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 04:45:31,577 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 04:45:31,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 04:45:31,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 04:45:31,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 04:45:31,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-10-27 04:45:31,698 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 04:45:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2018-10-27 04:45:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-10-27 04:45:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-10-27 04:45:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-27 04:45:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-27 04:45:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-27 04:45:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 04:45:31,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-27 04:45:31,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 04:45:31,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 04:45:31,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-10-27 04:45:32,137 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 04:45:32,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:45:32 BoogieIcfgContainer [2018-10-27 04:45:32,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 04:45:32,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 04:45:32,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 04:45:32,142 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 04:45:32,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:45:31" (1/3) ... [2018-10-27 04:45:32,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3114ca3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:45:32, skipping insertion in model container [2018-10-27 04:45:32,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:45:31" (2/3) ... [2018-10-27 04:45:32,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3114ca3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:45:32, skipping insertion in model container [2018-10-27 04:45:32,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:45:32" (3/3) ... [2018-10-27 04:45:32,145 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers1_false-valid-deref.c [2018-10-27 04:45:32,155 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 04:45:32,162 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-10-27 04:45:32,178 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-10-27 04:45:32,201 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 04:45:32,201 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 04:45:32,201 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-27 04:45:32,202 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 04:45:32,202 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 04:45:32,202 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 04:45:32,202 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 04:45:32,202 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 04:45:32,202 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 04:45:32,216 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-10-27 04:45:32,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-27 04:45:32,225 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:32,225 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:45:32,228 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-10-27 04:45:32,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:32,233 INFO L82 PathProgramCache]: Analyzing trace with hash 657642178, now seen corresponding path program 1 times [2018-10-27 04:45:32,235 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:32,236 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:32,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:32,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:45:32,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:32,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:32,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 04:45:32,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 04:45:32,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 04:45:32,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 04:45:32,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 04:45:32,421 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 4 states. [2018-10-27 04:45:32,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:32,560 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-10-27 04:45:32,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 04:45:32,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-10-27 04:45:32,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:32,573 INFO L225 Difference]: With dead ends: 34 [2018-10-27 04:45:32,574 INFO L226 Difference]: Without dead ends: 31 [2018-10-27 04:45:32,576 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 04:45:32,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-27 04:45:32,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-10-27 04:45:32,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-27 04:45:32,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-10-27 04:45:32,611 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 13 [2018-10-27 04:45:32,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:32,612 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-10-27 04:45:32,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 04:45:32,612 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-10-27 04:45:32,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-27 04:45:32,612 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:32,613 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:45:32,613 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-10-27 04:45:32,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:32,613 INFO L82 PathProgramCache]: Analyzing trace with hash 657642179, now seen corresponding path program 1 times [2018-10-27 04:45:32,613 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:32,613 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:32,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:32,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:45:32,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:32,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:32,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 04:45:32,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 04:45:32,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 04:45:32,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 04:45:32,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 04:45:32,878 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 4 states. [2018-10-27 04:45:32,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:32,989 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2018-10-27 04:45:32,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 04:45:32,990 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-10-27 04:45:32,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:32,991 INFO L225 Difference]: With dead ends: 35 [2018-10-27 04:45:32,991 INFO L226 Difference]: Without dead ends: 35 [2018-10-27 04:45:32,991 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 04:45:32,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-10-27 04:45:32,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2018-10-27 04:45:32,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-27 04:45:32,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2018-10-27 04:45:32,996 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 13 [2018-10-27 04:45:32,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:32,997 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2018-10-27 04:45:32,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 04:45:32,997 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-10-27 04:45:32,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-27 04:45:32,997 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:32,998 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:45:32,998 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-10-27 04:45:32,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:32,998 INFO L82 PathProgramCache]: Analyzing trace with hash -668039334, now seen corresponding path program 1 times [2018-10-27 04:45:32,998 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:32,998 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:32,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:32,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:45:33,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:33,417 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 17 [2018-10-27 04:45:33,419 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:33,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 04:45:33,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 04:45:33,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 04:45:33,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 04:45:33,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-27 04:45:33,421 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 7 states. [2018-10-27 04:45:33,739 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-27 04:45:33,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:33,788 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-10-27 04:45:33,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 04:45:33,789 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-10-27 04:45:33,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:33,789 INFO L225 Difference]: With dead ends: 34 [2018-10-27 04:45:33,789 INFO L226 Difference]: Without dead ends: 34 [2018-10-27 04:45:33,790 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-10-27 04:45:33,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-27 04:45:33,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2018-10-27 04:45:33,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-10-27 04:45:33,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-10-27 04:45:33,794 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 17 [2018-10-27 04:45:33,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:33,794 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-10-27 04:45:33,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 04:45:33,794 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-10-27 04:45:33,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-27 04:45:33,795 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:33,795 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] [2018-10-27 04:45:33,795 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-10-27 04:45:33,795 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:33,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1047004081, now seen corresponding path program 1 times [2018-10-27 04:45:33,795 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:33,796 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:33,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:33,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:45:33,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:33,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:33,886 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:45:33,886 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 04:45:33,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:45:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:33,940 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:45:34,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:34,092 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 04:45:34,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-10-27 04:45:34,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 04:45:34,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 04:45:34,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-27 04:45:34,095 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 5 states. [2018-10-27 04:45:34,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:34,258 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2018-10-27 04:45:34,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 04:45:34,259 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-10-27 04:45:34,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:34,260 INFO L225 Difference]: With dead ends: 38 [2018-10-27 04:45:34,260 INFO L226 Difference]: Without dead ends: 38 [2018-10-27 04:45:34,260 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-27 04:45:34,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-10-27 04:45:34,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2018-10-27 04:45:34,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-10-27 04:45:34,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2018-10-27 04:45:34,264 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 25 [2018-10-27 04:45:34,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:34,265 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2018-10-27 04:45:34,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 04:45:34,265 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2018-10-27 04:45:34,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-27 04:45:34,266 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:34,266 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] [2018-10-27 04:45:34,266 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-10-27 04:45:34,266 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:34,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1578203546, now seen corresponding path program 2 times [2018-10-27 04:45:34,266 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:34,266 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:34,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:34,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:45:34,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:34,332 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:34,332 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:45:34,332 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-10-27 04:45:34,346 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 04:45:34,387 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-27 04:45:34,388 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 04:45:34,390 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:45:34,439 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:34,457 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 04:45:34,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-10-27 04:45:34,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 04:45:34,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 04:45:34,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-27 04:45:34,458 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 6 states. [2018-10-27 04:45:34,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:34,488 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2018-10-27 04:45:34,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 04:45:34,490 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2018-10-27 04:45:34,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:34,490 INFO L225 Difference]: With dead ends: 42 [2018-10-27 04:45:34,490 INFO L226 Difference]: Without dead ends: 42 [2018-10-27 04:45:34,491 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 [2018-10-27 04:45:34,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-10-27 04:45:34,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2018-10-27 04:45:34,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-10-27 04:45:34,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2018-10-27 04:45:34,493 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 29 [2018-10-27 04:45:34,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:34,494 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2018-10-27 04:45:34,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 04:45:34,494 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-10-27 04:45:34,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-27 04:45:34,496 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:34,496 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] [2018-10-27 04:45:34,496 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-10-27 04:45:34,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:34,497 INFO L82 PathProgramCache]: Analyzing trace with hash 20196605, now seen corresponding path program 3 times [2018-10-27 04:45:34,497 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:34,497 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:34,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:34,498 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 04:45:34,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:34,808 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:34,808 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:45:34,808 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/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 [2018-10-27 04:45:34,818 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-27 04:45:34,884 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-10-27 04:45:34,885 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 04:45:34,886 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:45:34,900 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:34,931 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 04:45:34,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-10-27 04:45:34,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 04:45:34,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 04:45:34,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-10-27 04:45:34,932 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 7 states. [2018-10-27 04:45:35,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:35,064 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2018-10-27 04:45:35,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 04:45:35,065 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-10-27 04:45:35,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:35,066 INFO L225 Difference]: With dead ends: 46 [2018-10-27 04:45:35,066 INFO L226 Difference]: Without dead ends: 46 [2018-10-27 04:45:35,066 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-10-27 04:45:35,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-10-27 04:45:35,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2018-10-27 04:45:35,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-27 04:45:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2018-10-27 04:45:35,071 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 33 [2018-10-27 04:45:35,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:35,071 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2018-10-27 04:45:35,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 04:45:35,072 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2018-10-27 04:45:35,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-27 04:45:35,072 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:35,072 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] [2018-10-27 04:45:35,073 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-10-27 04:45:35,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:35,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1636216852, now seen corresponding path program 4 times [2018-10-27 04:45:35,073 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:35,073 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:35,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:35,074 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 04:45:35,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:35,158 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:35,158 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:45:35,159 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/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 [2018-10-27 04:45:35,178 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-10-27 04:45:35,202 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-10-27 04:45:35,202 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 04:45:35,204 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:45:35,270 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:35,304 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 04:45:35,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2018-10-27 04:45:35,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 04:45:35,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 04:45:35,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-10-27 04:45:35,305 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 8 states. [2018-10-27 04:45:35,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:35,389 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2018-10-27 04:45:35,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 04:45:35,392 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-10-27 04:45:35,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:35,392 INFO L225 Difference]: With dead ends: 50 [2018-10-27 04:45:35,392 INFO L226 Difference]: Without dead ends: 50 [2018-10-27 04:45:35,393 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 [2018-10-27 04:45:35,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-10-27 04:45:35,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2018-10-27 04:45:35,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-27 04:45:35,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2018-10-27 04:45:35,396 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 37 [2018-10-27 04:45:35,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:35,396 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2018-10-27 04:45:35,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 04:45:35,397 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2018-10-27 04:45:35,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-27 04:45:35,399 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:35,399 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] [2018-10-27 04:45:35,399 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-10-27 04:45:35,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:35,399 INFO L82 PathProgramCache]: Analyzing trace with hash -2145136725, now seen corresponding path program 5 times [2018-10-27 04:45:35,399 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:35,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:35,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:35,400 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 04:45:35,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:35,743 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:35,743 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:45:35,743 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/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 [2018-10-27 04:45:35,750 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-10-27 04:45:35,778 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-10-27 04:45:35,778 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 04:45:35,780 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:45:35,803 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:35,824 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 04:45:35,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-10-27 04:45:35,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 04:45:35,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 04:45:35,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-10-27 04:45:35,826 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 9 states. [2018-10-27 04:45:35,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:35,880 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2018-10-27 04:45:35,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 04:45:35,880 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-10-27 04:45:35,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:35,881 INFO L225 Difference]: With dead ends: 54 [2018-10-27 04:45:35,881 INFO L226 Difference]: Without dead ends: 54 [2018-10-27 04:45:35,881 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-10-27 04:45:35,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-10-27 04:45:35,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2018-10-27 04:45:35,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-10-27 04:45:35,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2018-10-27 04:45:35,885 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 41 [2018-10-27 04:45:35,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:35,886 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2018-10-27 04:45:35,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 04:45:35,886 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2018-10-27 04:45:35,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-27 04:45:35,889 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:35,889 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] [2018-10-27 04:45:35,889 INFO L424 AbstractCegarLoop]: === Iteration 9 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-10-27 04:45:35,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:35,890 INFO L82 PathProgramCache]: Analyzing trace with hash -982955070, now seen corresponding path program 6 times [2018-10-27 04:45:35,890 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:35,890 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:35,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:35,891 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 04:45:35,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:35,995 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:35,995 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:45:35,995 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/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 [2018-10-27 04:45:36,002 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-10-27 04:45:36,038 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-10-27 04:45:36,039 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 04:45:36,041 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:45:36,057 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:36,075 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 04:45:36,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2018-10-27 04:45:36,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 04:45:36,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 04:45:36,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-10-27 04:45:36,076 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand 10 states. [2018-10-27 04:45:36,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:36,116 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2018-10-27 04:45:36,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 04:45:36,127 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2018-10-27 04:45:36,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:36,128 INFO L225 Difference]: With dead ends: 58 [2018-10-27 04:45:36,128 INFO L226 Difference]: Without dead ends: 58 [2018-10-27 04:45:36,128 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 [2018-10-27 04:45:36,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-10-27 04:45:36,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2018-10-27 04:45:36,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-10-27 04:45:36,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2018-10-27 04:45:36,134 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 45 [2018-10-27 04:45:36,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:36,134 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2018-10-27 04:45:36,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 04:45:36,134 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2018-10-27 04:45:36,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-27 04:45:36,135 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:36,135 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] [2018-10-27 04:45:36,136 INFO L424 AbstractCegarLoop]: === Iteration 10 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-10-27 04:45:36,136 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:36,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1261116327, now seen corresponding path program 7 times [2018-10-27 04:45:36,136 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:36,136 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:36,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:36,137 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 04:45:36,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:36,346 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:36,346 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:45:36,346 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/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 [2018-10-27 04:45:36,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:45:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:36,371 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:45:36,386 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:36,402 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 04:45:36,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2018-10-27 04:45:36,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-27 04:45:36,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-27 04:45:36,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-10-27 04:45:36,404 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 11 states. [2018-10-27 04:45:36,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:36,459 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2018-10-27 04:45:36,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 04:45:36,460 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 49 [2018-10-27 04:45:36,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:36,460 INFO L225 Difference]: With dead ends: 62 [2018-10-27 04:45:36,461 INFO L226 Difference]: Without dead ends: 62 [2018-10-27 04:45:36,461 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-10-27 04:45:36,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-10-27 04:45:36,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2018-10-27 04:45:36,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-10-27 04:45:36,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2018-10-27 04:45:36,465 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 49 [2018-10-27 04:45:36,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:36,465 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2018-10-27 04:45:36,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-27 04:45:36,466 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2018-10-27 04:45:36,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-27 04:45:36,466 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:36,469 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] [2018-10-27 04:45:36,469 INFO L424 AbstractCegarLoop]: === Iteration 11 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-10-27 04:45:36,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:36,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1560566128, now seen corresponding path program 8 times [2018-10-27 04:45:36,470 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:36,470 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:36,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:36,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:45:36,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:37,164 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:37,164 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:45:37,164 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/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 [2018-10-27 04:45:37,171 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-27 04:45:37,190 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-27 04:45:37,190 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 04:45:37,193 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:45:37,214 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:37,233 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 04:45:37,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2018-10-27 04:45:37,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-27 04:45:37,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-27 04:45:37,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-10-27 04:45:37,235 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 12 states. [2018-10-27 04:45:37,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:37,328 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2018-10-27 04:45:37,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-27 04:45:37,328 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2018-10-27 04:45:37,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:37,329 INFO L225 Difference]: With dead ends: 66 [2018-10-27 04:45:37,329 INFO L226 Difference]: Without dead ends: 66 [2018-10-27 04:45:37,330 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-10-27 04:45:37,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-10-27 04:45:37,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-10-27 04:45:37,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-10-27 04:45:37,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2018-10-27 04:45:37,334 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 53 [2018-10-27 04:45:37,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:37,335 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2018-10-27 04:45:37,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-27 04:45:37,335 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2018-10-27 04:45:37,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-27 04:45:37,336 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:37,336 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] [2018-10-27 04:45:37,336 INFO L424 AbstractCegarLoop]: === Iteration 12 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-10-27 04:45:37,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:37,336 INFO L82 PathProgramCache]: Analyzing trace with hash -944411897, now seen corresponding path program 9 times [2018-10-27 04:45:37,336 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:37,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:37,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:37,337 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 04:45:37,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:45:38,602 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:38,602 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:45:38,602 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/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 [2018-10-27 04:45:38,609 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-27 04:45:38,673 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-10-27 04:45:38,673 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 04:45:38,675 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:45:38,691 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:45:38,709 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 04:45:38,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2018-10-27 04:45:38,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-27 04:45:38,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-27 04:45:38,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-10-27 04:45:38,710 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand 13 states. [2018-10-27 04:45:38,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:45:38,747 INFO L93 Difference]: Finished difference Result 68 states and 69 transitions. [2018-10-27 04:45:38,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-27 04:45:38,748 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 57 [2018-10-27 04:45:38,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:45:38,749 INFO L225 Difference]: With dead ends: 68 [2018-10-27 04:45:38,749 INFO L226 Difference]: Without dead ends: 68 [2018-10-27 04:45:38,749 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-10-27 04:45:38,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-10-27 04:45:38,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-10-27 04:45:38,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-10-27 04:45:38,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2018-10-27 04:45:38,753 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 57 [2018-10-27 04:45:38,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:45:38,753 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2018-10-27 04:45:38,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-27 04:45:38,753 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2018-10-27 04:45:38,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-10-27 04:45:38,754 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:45:38,754 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] [2018-10-27 04:45:38,758 INFO L424 AbstractCegarLoop]: === Iteration 13 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-10-27 04:45:38,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:45:38,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1774573854, now seen corresponding path program 10 times [2018-10-27 04:45:38,758 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 04:45:38,759 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 04:45:38,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:38,760 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 04:45:38,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:45:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 04:45:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 04:45:38,810 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 04:45:38,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 04:45:38 BoogieIcfgContainer [2018-10-27 04:45:38,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 04:45:38,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 04:45:38,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 04:45:38,844 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 04:45:38,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:45:32" (3/4) ... [2018-10-27 04:45:38,848 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-27 04:45:38,907 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0e874b00-70f5-444a-8bfa-f85772c0c772/bin-2019/uautomizer/witness.graphml [2018-10-27 04:45:38,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 04:45:38,908 INFO L168 Benchmark]: Toolchain (without parser) took 7551.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 215.0 MB). Free memory was 960.7 MB in the beginning and 1.2 GB in the end (delta: -192.9 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-10-27 04:45:38,908 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 04:45:38,908 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.97 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 04:45:38,909 INFO L168 Benchmark]: Boogie Preprocessor took 32.76 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 947.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 04:45:38,909 INFO L168 Benchmark]: RCFGBuilder took 560.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-10-27 04:45:38,909 INFO L168 Benchmark]: TraceAbstraction took 6705.26 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 60.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -20.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. [2018-10-27 04:45:38,910 INFO L168 Benchmark]: Witness Printer took 63.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 04:45:38,911 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 185.97 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.76 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 947.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 560.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6705.26 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 60.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -20.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. * Witness Printer took 63.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. 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")=102, \old("%d\n")=104] [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, 6.6s OverallTime, 13 OverallIterations, 11 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 333 SDtfs, 162 SDslu, 1296 SDs, 0 SdLazy, 317 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 450 GetRequests, 372 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 3.9s 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, 4.0s 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...