./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60fa12f4a8e344f82de5faf31b8f2cbfbaaacd93 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:26:43,780 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:26:43,781 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:26:43,789 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:26:43,789 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:26:43,789 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:26:43,790 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:26:43,791 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:26:43,792 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:26:43,793 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:26:43,793 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:26:43,794 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:26:43,794 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:26:43,795 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:26:43,796 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:26:43,796 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:26:43,797 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:26:43,798 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:26:43,799 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:26:43,800 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:26:43,801 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:26:43,802 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:26:43,803 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:26:43,804 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:26:43,804 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:26:43,804 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:26:43,805 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:26:43,806 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:26:43,806 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:26:43,807 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:26:43,807 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:26:43,808 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:26:43,808 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:26:43,808 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:26:43,809 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:26:43,809 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:26:43,809 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 11:26:43,819 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:26:43,819 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:26:43,820 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:26:43,820 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:26:43,820 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:26:43,821 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:26:43,821 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:26:43,821 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:26:43,821 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:26:43,821 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 11:26:43,821 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:26:43,821 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:26:43,821 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:26:43,822 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 11:26:43,822 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 11:26:43,822 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 11:26:43,822 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:26:43,822 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:26:43,822 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:26:43,822 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:26:43,823 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:26:43,823 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:26:43,823 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:26:43,823 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:26:43,823 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:26:43,823 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:26:43,823 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:26:43,823 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:26:43,823 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_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60fa12f4a8e344f82de5faf31b8f2cbfbaaacd93 [2018-11-28 11:26:43,845 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:26:43,853 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:26:43,855 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:26:43,856 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:26:43,856 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:26:43,856 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-11-28 11:26:43,894 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer/data/1a55bfe6e/7c5a50a726094ecab5169ae818699b59/FLAG897a8b7d5 [2018-11-28 11:26:44,275 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:26:44,275 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-11-28 11:26:44,279 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer/data/1a55bfe6e/7c5a50a726094ecab5169ae818699b59/FLAG897a8b7d5 [2018-11-28 11:26:44,289 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer/data/1a55bfe6e/7c5a50a726094ecab5169ae818699b59 [2018-11-28 11:26:44,291 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:26:44,293 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 11:26:44,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:26:44,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:26:44,295 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:26:44,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:26:44" (1/1) ... [2018-11-28 11:26:44,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3375cb2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:26:44, skipping insertion in model container [2018-11-28 11:26:44,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:26:44" (1/1) ... [2018-11-28 11:26:44,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:26:44,315 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:26:44,409 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:26:44,417 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:26:44,428 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:26:44,439 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:26:44,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:26:44 WrapperNode [2018-11-28 11:26:44,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:26:44,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:26:44,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:26:44,440 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:26:44,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:26:44" (1/1) ... [2018-11-28 11:26:44,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:26:44" (1/1) ... [2018-11-28 11:26:44,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:26:44" (1/1) ... [2018-11-28 11:26:44,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:26:44" (1/1) ... [2018-11-28 11:26:44,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:26:44" (1/1) ... [2018-11-28 11:26:44,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:26:44" (1/1) ... [2018-11-28 11:26:44,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:26:44" (1/1) ... [2018-11-28 11:26:44,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:26:44,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:26:44,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:26:44,501 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:26:44,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:26:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:26:44,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:26:44,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:26:44,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-28 11:26:44,536 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:26:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2018-11-28 11:26:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-28 11:26:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 11:26:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:26:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 11:26:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 11:26:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:26:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 11:26:44,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:26:44,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 11:26:44,700 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:26:44,700 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 11:26:44,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:26:44 BoogieIcfgContainer [2018-11-28 11:26:44,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:26:44,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:26:44,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:26:44,703 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:26:44,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:26:44" (1/3) ... [2018-11-28 11:26:44,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d17140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:26:44, skipping insertion in model container [2018-11-28 11:26:44,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:26:44" (2/3) ... [2018-11-28 11:26:44,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d17140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:26:44, skipping insertion in model container [2018-11-28 11:26:44,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:26:44" (3/3) ... [2018-11-28 11:26:44,705 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers1_true-valid-memsafety.c [2018-11-28 11:26:44,711 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:26:44,716 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-28 11:26:44,727 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-28 11:26:44,747 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:26:44,748 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:26:44,748 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 11:26:44,748 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:26:44,748 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:26:44,748 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:26:44,749 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:26:44,749 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:26:44,749 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:26:44,760 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-28 11:26:44,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 11:26:44,766 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:26:44,766 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:26:44,768 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-28 11:26:44,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:26:44,771 INFO L82 PathProgramCache]: Analyzing trace with hash 543879226, now seen corresponding path program 1 times [2018-11-28 11:26:44,772 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:26:44,773 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:26:44,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:26:44,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:26:44,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:26:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:26:44,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:26:44,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:26:44,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:26:44,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:26:44,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:26:44,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:26:44,912 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2018-11-28 11:26:44,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:26:44,934 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-11-28 11:26:44,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:26:44,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 11:26:44,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:26:44,941 INFO L225 Difference]: With dead ends: 26 [2018-11-28 11:26:44,941 INFO L226 Difference]: Without dead ends: 21 [2018-11-28 11:26:44,942 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:26:44,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-28 11:26:44,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-28 11:26:44,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-28 11:26:44,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-11-28 11:26:44,963 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 9 [2018-11-28 11:26:44,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:26:44,963 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-11-28 11:26:44,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:26:44,964 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-11-28 11:26:44,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 11:26:44,964 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:26:44,964 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:26:44,964 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-28 11:26:44,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:26:44,965 INFO L82 PathProgramCache]: Analyzing trace with hash 543879227, now seen corresponding path program 1 times [2018-11-28 11:26:44,965 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:26:44,965 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:26:44,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:26:44,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:26:44,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:26:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:26:45,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:26:45,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:26:45,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:26:45,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 11:26:45,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 11:26:45,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 11:26:45,043 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 4 states. [2018-11-28 11:26:45,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:26:45,088 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-11-28 11:26:45,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 11:26:45,088 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-28 11:26:45,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:26:45,089 INFO L225 Difference]: With dead ends: 24 [2018-11-28 11:26:45,089 INFO L226 Difference]: Without dead ends: 24 [2018-11-28 11:26:45,090 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 11:26:45,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-28 11:26:45,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2018-11-28 11:26:45,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-28 11:26:45,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-11-28 11:26:45,092 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 9 [2018-11-28 11:26:45,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:26:45,092 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-11-28 11:26:45,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 11:26:45,093 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-11-28 11:26:45,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 11:26:45,093 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:26:45,093 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:26:45,093 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-28 11:26:45,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:26:45,094 INFO L82 PathProgramCache]: Analyzing trace with hash 2089391026, now seen corresponding path program 1 times [2018-11-28 11:26:45,094 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:26:45,094 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:26:45,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:26:45,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:26:45,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:26:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:26:45,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:26:45,195 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:26:45,195 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 11:26:45,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:26:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:26:45,234 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:26:45,264 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-28 11:26:45,268 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 11:26:45,269 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 11:26:45,270 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-11-28 11:26:45,270 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 11:26:45,287 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 11:26:45,293 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-28 11:26:45,301 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-11-28 11:26:45,301 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 11:26:45,303 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 11:26:45,307 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 11:26:45,308 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:24, output treesize:14 [2018-11-28 11:26:45,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:26:45,375 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 11:26:45,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2018-11-28 11:26:45,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 11:26:45,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 11:26:45,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-28 11:26:45,376 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 9 states. [2018-11-28 11:26:45,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:26:45,512 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2018-11-28 11:26:45,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 11:26:45,512 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2018-11-28 11:26:45,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:26:45,513 INFO L225 Difference]: With dead ends: 27 [2018-11-28 11:26:45,513 INFO L226 Difference]: Without dead ends: 27 [2018-11-28 11:26:45,513 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2018-11-28 11:26:45,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-28 11:26:45,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-28 11:26:45,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 11:26:45,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-11-28 11:26:45,516 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 12 [2018-11-28 11:26:45,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:26:45,517 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-11-28 11:26:45,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 11:26:45,517 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-11-28 11:26:45,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 11:26:45,517 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:26:45,518 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:26:45,518 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-28 11:26:45,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:26:45,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1378383288, now seen corresponding path program 1 times [2018-11-28 11:26:45,518 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:26:45,518 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:26:45,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:26:45,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:26:45,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:26:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:26:45,581 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-28 11:26:45,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:26:45,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 11:26:45,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 11:26:45,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 11:26:45,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-28 11:26:45,582 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 6 states. [2018-11-28 11:26:45,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:26:45,614 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-11-28 11:26:45,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 11:26:45,614 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-28 11:26:45,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:26:45,615 INFO L225 Difference]: With dead ends: 26 [2018-11-28 11:26:45,615 INFO L226 Difference]: Without dead ends: 26 [2018-11-28 11:26:45,615 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-28 11:26:45,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-28 11:26:45,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-28 11:26:45,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-28 11:26:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-11-28 11:26:45,618 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2018-11-28 11:26:45,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:26:45,619 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-11-28 11:26:45,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 11:26:45,619 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-11-28 11:26:45,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 11:26:45,619 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:26:45,619 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:26:45,619 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-28 11:26:45,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:26:45,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1378383287, now seen corresponding path program 1 times [2018-11-28 11:26:45,620 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:26:45,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:26:45,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:26:45,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:26:45,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:26:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:26:45,663 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:26:45,664 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:26:45,664 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 11:26:45,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:26:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:26:45,700 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:26:45,710 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:26:45,734 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 11:26:45,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-28 11:26:45,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 11:26:45,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 11:26:45,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-28 11:26:45,735 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 7 states. [2018-11-28 11:26:45,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:26:45,757 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2018-11-28 11:26:45,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 11:26:45,758 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-28 11:26:45,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:26:45,758 INFO L225 Difference]: With dead ends: 31 [2018-11-28 11:26:45,758 INFO L226 Difference]: Without dead ends: 31 [2018-11-28 11:26:45,759 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-28 11:26:45,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-28 11:26:45,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2018-11-28 11:26:45,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-28 11:26:45,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-11-28 11:26:45,762 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 23 [2018-11-28 11:26:45,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:26:45,762 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-11-28 11:26:45,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 11:26:45,762 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-11-28 11:26:45,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 11:26:45,763 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:26:45,763 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:26:45,763 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-28 11:26:45,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:26:45,763 INFO L82 PathProgramCache]: Analyzing trace with hash -149204608, now seen corresponding path program 2 times [2018-11-28 11:26:45,764 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:26:45,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:26:45,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:26:45,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:26:45,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:26:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:26:45,819 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:26:45,819 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:26:45,819 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 11:26:45,829 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 11:26:45,845 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-28 11:26:45,846 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 11:26:45,848 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:26:45,852 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-28 11:26:45,855 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 11:26:45,856 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 11:26:45,856 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-11-28 11:26:45,857 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 11:26:45,873 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 11:26:45,881 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-28 11:26:45,896 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-11-28 11:26:45,897 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 11:26:45,898 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 11:26:45,903 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 11:26:45,903 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:24, output treesize:14 [2018-11-28 11:26:45,982 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-28 11:26:45,997 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 11:26:45,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2018-11-28 11:26:45,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 11:26:45,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 11:26:45,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-11-28 11:26:45,998 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 12 states. [2018-11-28 11:26:46,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:26:46,160 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-11-28 11:26:46,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 11:26:46,160 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2018-11-28 11:26:46,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:26:46,161 INFO L225 Difference]: With dead ends: 34 [2018-11-28 11:26:46,161 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 11:26:46,161 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-11-28 11:26:46,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 11:26:46,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 11:26:46,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 11:26:46,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 11:26:46,162 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-28 11:26:46,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:26:46,162 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:26:46,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 11:26:46,162 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 11:26:46,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 11:26:46,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:26:46 BoogieIcfgContainer [2018-11-28 11:26:46,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:26:46,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:26:46,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:26:46,166 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:26:46,167 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:26:44" (3/4) ... [2018-11-28 11:26:46,169 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 11:26:46,174 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 11:26:46,174 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 11:26:46,175 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-11-28 11:26:46,177 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-11-28 11:26:46,178 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-28 11:26:46,178 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 11:26:46,178 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 11:26:46,205 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ca24df20-af5d-4f24-bc4c-c6e5cea94ebf/bin-2019/uautomizer/witness.graphml [2018-11-28 11:26:46,205 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:26:46,205 INFO L168 Benchmark]: Toolchain (without parser) took 1913.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 953.3 MB in the beginning and 904.4 MB in the end (delta: 48.9 MB). Peak memory consumption was 194.1 MB. Max. memory is 11.5 GB. [2018-11-28 11:26:46,206 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:26:46,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.28 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:26:46,207 INFO L168 Benchmark]: Boogie Preprocessor took 60.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -197.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-11-28 11:26:46,207 INFO L168 Benchmark]: RCFGBuilder took 200.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:26:46,207 INFO L168 Benchmark]: TraceAbstraction took 1464.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 907.8 MB in the end (delta: 214.5 MB). Peak memory consumption was 214.5 MB. Max. memory is 11.5 GB. [2018-11-28 11:26:46,208 INFO L168 Benchmark]: Witness Printer took 38.54 ms. Allocated memory is still 1.2 GB. Free memory was 907.8 MB in the beginning and 904.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:26:46,209 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 146.28 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -197.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 200.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1464.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 907.8 MB in the end (delta: 214.5 MB). Peak memory consumption was 214.5 MB. Max. memory is 11.5 GB. * Witness Printer took 38.54 ms. Allocated memory is still 1.2 GB. Free memory was 907.8 MB in the beginning and 904.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 5 error locations. SAFE Result, 1.4s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 94 SDtfs, 118 SDslu, 158 SDs, 0 SdLazy, 201 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=5, 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, 6 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 163 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 154 ConstructedInterpolants, 34 QuantifiedInterpolants, 18683 SizeOfPredicates, 5 NumberOfNonLiveVariables, 325 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 35/84 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...