./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_aff8b7ed-984f-449a-a59e-b91a2fb467e2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_aff8b7ed-984f-449a-a59e-b91a2fb467e2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_aff8b7ed-984f-449a-a59e-b91a2fb467e2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_aff8b7ed-984f-449a-a59e-b91a2fb467e2/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_aff8b7ed-984f-449a-a59e-b91a2fb467e2/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_aff8b7ed-984f-449a-a59e-b91a2fb467e2/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 c8f17cf5334c3a5b079beafc57a2e2bffaea721f .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:21:04,521 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:21:04,522 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:21:04,530 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:21:04,531 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:21:04,531 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:21:04,532 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:21:04,533 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:21:04,534 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:21:04,535 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:21:04,536 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:21:04,536 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:21:04,536 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:21:04,537 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:21:04,538 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:21:04,538 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:21:04,539 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:21:04,540 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:21:04,541 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:21:04,542 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:21:04,543 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:21:04,544 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:21:04,546 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:21:04,546 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:21:04,546 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:21:04,547 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:21:04,547 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:21:04,548 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:21:04,548 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:21:04,549 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:21:04,549 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:21:04,550 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:21:04,550 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:21:04,550 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:21:04,551 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:21:04,551 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:21:04,551 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_aff8b7ed-984f-449a-a59e-b91a2fb467e2/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-18 10:21:04,561 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:21:04,562 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:21:04,563 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:21:04,563 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:21:04,563 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:21:04,563 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:21:04,563 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:21:04,563 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 10:21:04,563 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:21:04,564 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:21:04,564 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:21:04,564 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 10:21:04,564 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 10:21:04,564 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 10:21:04,564 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:21:04,564 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:21:04,565 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:21:04,565 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:21:04,565 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:21:04,565 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:21:04,565 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:21:04,565 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:21:04,565 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:21:04,566 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:21:04,566 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:21:04,566 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:21:04,566 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_aff8b7ed-984f-449a-a59e-b91a2fb467e2/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 -> c8f17cf5334c3a5b079beafc57a2e2bffaea721f [2018-11-18 10:21:04,590 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:21:04,599 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:21:04,601 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:21:04,602 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:21:04,602 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:21:04,603 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_aff8b7ed-984f-449a-a59e-b91a2fb467e2/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2018-11-18 10:21:04,646 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_aff8b7ed-984f-449a-a59e-b91a2fb467e2/bin-2019/uautomizer/data/a27c39c18/0bf838e3542144ea9c476c2e081481dd/FLAGe78545117 [2018-11-18 10:21:04,972 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:21:04,973 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_aff8b7ed-984f-449a-a59e-b91a2fb467e2/sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2018-11-18 10:21:04,977 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_aff8b7ed-984f-449a-a59e-b91a2fb467e2/bin-2019/uautomizer/data/a27c39c18/0bf838e3542144ea9c476c2e081481dd/FLAGe78545117 [2018-11-18 10:21:05,415 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_aff8b7ed-984f-449a-a59e-b91a2fb467e2/bin-2019/uautomizer/data/a27c39c18/0bf838e3542144ea9c476c2e081481dd [2018-11-18 10:21:05,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:21:05,418 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 10:21:05,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:21:05,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:21:05,421 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:21:05,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:21:05" (1/1) ... [2018-11-18 10:21:05,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74466433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:05, skipping insertion in model container [2018-11-18 10:21:05,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:21:05" (1/1) ... [2018-11-18 10:21:05,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:21:05,446 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:21:05,549 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:21:05,556 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:21:05,565 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:21:05,575 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:21:05,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:05 WrapperNode [2018-11-18 10:21:05,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:21:05,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:21:05,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:21:05,576 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:21:05,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:05" (1/1) ... [2018-11-18 10:21:05,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:05" (1/1) ... [2018-11-18 10:21:05,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:05" (1/1) ... [2018-11-18 10:21:05,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:05" (1/1) ... [2018-11-18 10:21:05,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:05" (1/1) ... [2018-11-18 10:21:05,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:05" (1/1) ... [2018-11-18 10:21:05,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:05" (1/1) ... [2018-11-18 10:21:05,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:21:05,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:21:05,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:21:05,599 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:21:05,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aff8b7ed-984f-449a-a59e-b91a2fb467e2/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 [2018-11-18 10:21:05,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:21:05,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:21:05,679 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-18 10:21:05,679 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:21:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-18 10:21:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 10:21:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:21:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:21:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:21:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:21:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 10:21:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:21:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:21:05,797 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:21:05,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:21:05 BoogieIcfgContainer [2018-11-18 10:21:05,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:21:05,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:21:05,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:21:05,800 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:21:05,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:21:05" (1/3) ... [2018-11-18 10:21:05,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@534b7a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:21:05, skipping insertion in model container [2018-11-18 10:21:05,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:05" (2/3) ... [2018-11-18 10:21:05,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@534b7a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:21:05, skipping insertion in model container [2018-11-18 10:21:05,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:21:05" (3/3) ... [2018-11-18 10:21:05,803 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers3_true-valid-memsafety.c [2018-11-18 10:21:05,809 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:21:05,813 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-18 10:21:05,821 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-18 10:21:05,835 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:21:05,835 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:21:05,836 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 10:21:05,836 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:21:05,836 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:21:05,836 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:21:05,836 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:21:05,836 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:21:05,836 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:21:05,847 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-11-18 10:21:05,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 10:21:05,855 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:21:05,856 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:21:05,857 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 10:21:05,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:21:05,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1097170423, now seen corresponding path program 1 times [2018-11-18 10:21:05,862 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:21:05,862 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:21:05,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:21:05,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:21:05,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:21:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:21:05,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:21:05,955 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:21:05,955 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:21:05,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:21:05,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:21:05,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:21:05,968 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2018-11-18 10:21:05,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:21:05,986 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-11-18 10:21:05,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:21:05,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 10:21:05,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:21:05,993 INFO L225 Difference]: With dead ends: 24 [2018-11-18 10:21:05,993 INFO L226 Difference]: Without dead ends: 19 [2018-11-18 10:21:05,994 INFO L604 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 [2018-11-18 10:21:06,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-18 10:21:06,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-18 10:21:06,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 10:21:06,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-11-18 10:21:06,015 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2018-11-18 10:21:06,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:21:06,015 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-11-18 10:21:06,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:21:06,015 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-11-18 10:21:06,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 10:21:06,015 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:21:06,015 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:21:06,016 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 10:21:06,016 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:21:06,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1097170422, now seen corresponding path program 1 times [2018-11-18 10:21:06,016 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:21:06,016 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:21:06,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:21:06,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:21:06,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:21:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:21:06,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:21:06,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:21:06,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:21:06,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 10:21:06,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 10:21:06,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:21:06,101 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 4 states. [2018-11-18 10:21:06,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:21:06,146 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-11-18 10:21:06,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 10:21:06,147 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-18 10:21:06,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:21:06,147 INFO L225 Difference]: With dead ends: 23 [2018-11-18 10:21:06,147 INFO L226 Difference]: Without dead ends: 23 [2018-11-18 10:21:06,148 INFO L604 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 [2018-11-18 10:21:06,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-18 10:21:06,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-11-18 10:21:06,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 10:21:06,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-11-18 10:21:06,150 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 10 [2018-11-18 10:21:06,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:21:06,150 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-11-18 10:21:06,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 10:21:06,150 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-11-18 10:21:06,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 10:21:06,151 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:21:06,151 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:21:06,151 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 10:21:06,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:21:06,151 INFO L82 PathProgramCache]: Analyzing trace with hash 168216225, now seen corresponding path program 1 times [2018-11-18 10:21:06,151 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:21:06,152 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:21:06,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:21:06,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:21:06,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:21:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:21:06,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:21:06,293 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:21:06,293 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aff8b7ed-984f-449a-a59e-b91a2fb467e2/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 [2018-11-18 10:21:06,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:21:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:21:06,317 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:21:06,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:21:06,342 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:21:06,347 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:21:06,347 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 10:21:06,358 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:21:06,379 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 10:21:06,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-18 10:21:06,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 10:21:06,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:21:06,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:21:06,380 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 5 states. [2018-11-18 10:21:06,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:21:06,426 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-11-18 10:21:06,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 10:21:06,427 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-18 10:21:06,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:21:06,427 INFO L225 Difference]: With dead ends: 27 [2018-11-18 10:21:06,428 INFO L226 Difference]: Without dead ends: 27 [2018-11-18 10:21:06,428 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:21:06,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-18 10:21:06,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-11-18 10:21:06,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-18 10:21:06,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-11-18 10:21:06,430 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 14 [2018-11-18 10:21:06,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:21:06,430 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-11-18 10:21:06,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 10:21:06,431 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-11-18 10:21:06,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 10:21:06,431 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:21:06,431 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:21:06,431 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 10:21:06,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:21:06,432 INFO L82 PathProgramCache]: Analyzing trace with hash -2046761032, now seen corresponding path program 2 times [2018-11-18 10:21:06,432 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:21:06,432 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:21:06,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:21:06,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:21:06,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:21:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:21:06,563 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:21:06,563 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:21:06,563 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aff8b7ed-984f-449a-a59e-b91a2fb467e2/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 [2018-11-18 10:21:06,575 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 10:21:06,587 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 10:21:06,587 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 10:21:06,589 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:21:06,595 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 10:21:06,595 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 10:21:06,598 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:21:06,598 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 10:21:06,660 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:21:06,676 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 10:21:06,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-18 10:21:06,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 10:21:06,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 10:21:06,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-11-18 10:21:06,677 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 11 states. [2018-11-18 10:21:06,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:21:06,767 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-11-18 10:21:06,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:21:06,767 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2018-11-18 10:21:06,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:21:06,768 INFO L225 Difference]: With dead ends: 32 [2018-11-18 10:21:06,768 INFO L226 Difference]: Without dead ends: 32 [2018-11-18 10:21:06,768 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-11-18 10:21:06,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-18 10:21:06,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-18 10:21:06,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-18 10:21:06,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-11-18 10:21:06,771 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 18 [2018-11-18 10:21:06,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:21:06,771 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-11-18 10:21:06,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 10:21:06,771 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-11-18 10:21:06,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 10:21:06,772 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:21:06,772 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:21:06,772 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 10:21:06,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:21:06,772 INFO L82 PathProgramCache]: Analyzing trace with hash -246049930, now seen corresponding path program 1 times [2018-11-18 10:21:06,772 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:21:06,773 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:21:06,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:21:06,773 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:21:06,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:21:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:21:06,826 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-18 10:21:06,827 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:21:06,827 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 10:21:06,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:21:06,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:21:06,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:21:06,828 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 6 states. [2018-11-18 10:21:06,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:21:06,861 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-11-18 10:21:06,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:21:06,862 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-11-18 10:21:06,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:21:06,863 INFO L225 Difference]: With dead ends: 31 [2018-11-18 10:21:06,863 INFO L226 Difference]: Without dead ends: 31 [2018-11-18 10:21:06,863 INFO L604 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 [2018-11-18 10:21:06,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-18 10:21:06,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-18 10:21:06,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-18 10:21:06,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-11-18 10:21:06,865 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 30 [2018-11-18 10:21:06,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:21:06,866 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-11-18 10:21:06,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:21:06,866 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-11-18 10:21:06,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 10:21:06,866 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:21:06,867 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:21:06,867 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 10:21:06,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:21:06,867 INFO L82 PathProgramCache]: Analyzing trace with hash -246049929, now seen corresponding path program 1 times [2018-11-18 10:21:06,867 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:21:06,867 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:21:06,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:21:06,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:21:06,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:21:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:21:06,920 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-18 10:21:06,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:21:06,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 10:21:06,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:21:06,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:21:06,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:21:06,922 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 6 states. [2018-11-18 10:21:06,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:21:06,978 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-11-18 10:21:06,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:21:06,978 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-11-18 10:21:06,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:21:06,978 INFO L225 Difference]: With dead ends: 30 [2018-11-18 10:21:06,979 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:21:06,979 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:21:06,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:21:06,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:21:06,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:21:06,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:21:06,980 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-11-18 10:21:06,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:21:06,980 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:21:06,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:21:06,980 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:21:06,980 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:21:06,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:21:06 BoogieIcfgContainer [2018-11-18 10:21:06,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:21:06,984 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:21:06,984 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:21:06,985 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:21:06,985 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:21:05" (3/4) ... [2018-11-18 10:21:06,987 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:21:06,991 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:21:06,991 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:21:06,992 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-11-18 10:21:06,994 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-18 10:21:06,994 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 10:21:06,994 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 10:21:07,019 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_aff8b7ed-984f-449a-a59e-b91a2fb467e2/bin-2019/uautomizer/witness.graphml [2018-11-18 10:21:07,019 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:21:07,020 INFO L168 Benchmark]: Toolchain (without parser) took 1602.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 958.4 MB in the beginning and 945.1 MB in the end (delta: 13.3 MB). Peak memory consumption was 150.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:21:07,021 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:21:07,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.80 ms. Allocated memory is still 1.0 GB. Free memory was 958.4 MB in the beginning and 947.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:21:07,021 INFO L168 Benchmark]: Boogie Preprocessor took 22.88 ms. Allocated memory is still 1.0 GB. Free memory was 947.6 MB in the beginning and 944.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:21:07,021 INFO L168 Benchmark]: RCFGBuilder took 198.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.9 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:21:07,022 INFO L168 Benchmark]: TraceAbstraction took 1186.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 948.4 MB in the end (delta: 167.5 MB). Peak memory consumption was 167.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:21:07,022 INFO L168 Benchmark]: Witness Printer took 35.06 ms. Allocated memory is still 1.2 GB. Free memory was 948.4 MB in the beginning and 945.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:21:07,024 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 156.80 ms. Allocated memory is still 1.0 GB. Free memory was 958.4 MB in the beginning and 947.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.88 ms. Allocated memory is still 1.0 GB. Free memory was 947.6 MB in the beginning and 944.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 198.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.9 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1186.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 948.4 MB in the end (delta: 167.5 MB). Peak memory consumption was 167.5 MB. Max. memory is 11.5 GB. * Witness Printer took 35.06 ms. Allocated memory is still 1.2 GB. Free memory was 948.4 MB in the beginning and 945.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: 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, 26 locations, 5 error locations. SAFE Result, 1.1s OverallTime, 6 OverallIterations, 5 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 86 SDtfs, 93 SDslu, 104 SDs, 0 SdLazy, 192 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=4, 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 17586 SizeOfPredicates, 0 NumberOfNonLiveVariables, 127 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 74/90 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...