./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrlen.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5586ac87-622f-475b-84fd-94011b5bdf12/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5586ac87-622f-475b-84fd-94011b5bdf12/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5586ac87-622f-475b-84fd-94011b5bdf12/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5586ac87-622f-475b-84fd-94011b5bdf12/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrlen.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5586ac87-622f-475b-84fd-94011b5bdf12/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5586ac87-622f-475b-84fd-94011b5bdf12/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1e3ef20869762bcfb9d8151d96b8065864cd760e ....................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:22:33,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:22:33,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:22:33,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:22:33,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:22:33,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:22:33,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:22:33,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:22:33,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:22:33,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:22:33,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:22:33,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:22:33,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:22:33,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:22:33,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:22:33,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:22:33,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:22:33,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:22:33,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:22:33,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:22:33,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:22:33,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:22:33,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:22:33,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:22:33,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:22:33,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:22:33,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:22:33,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:22:33,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:22:33,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:22:33,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:22:33,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:22:33,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:22:33,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:22:33,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:22:33,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:22:33,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:22:33,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:22:33,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:22:33,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:22:33,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:22:33,505 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5586ac87-622f-475b-84fd-94011b5bdf12/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-11 02:22:33,530 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:22:33,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:22:33,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:22:33,532 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:22:33,532 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:22:33,533 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:22:33,533 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:22:33,533 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:22:33,533 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:22:33,534 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:22:33,534 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:22:33,534 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:22:33,534 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:22:33,535 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:22:33,535 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:22:33,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:22:33,536 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:22:33,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:22:33,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:22:33,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:22:33,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:22:33,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:22:33,537 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 02:22:33,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:22:33,538 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:22:33,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:22:33,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:22:33,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:22:33,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:22:33,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:22:33,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:22:33,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:22:33,540 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:22:33,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:22:33,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:22:33,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:22:33,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:22:33,541 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5586ac87-622f-475b-84fd-94011b5bdf12/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5586ac87-622f-475b-84fd-94011b5bdf12/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e3ef20869762bcfb9d8151d96b8065864cd760e [2021-10-11 02:22:33,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:22:33,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:22:33,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:22:33,818 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:22:33,819 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:22:33,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5586ac87-622f-475b-84fd-94011b5bdf12/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/termination-crafted-lit/cstrlen.c [2021-10-11 02:22:33,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5586ac87-622f-475b-84fd-94011b5bdf12/bin/utaipan-WLngWcDbfI/data/3b17be76e/29a835d6454445d4b0488a43e769d520/FLAG9d3f2b6bf [2021-10-11 02:22:34,345 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:22:34,346 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5586ac87-622f-475b-84fd-94011b5bdf12/sv-benchmarks/c/termination-crafted-lit/cstrlen.c [2021-10-11 02:22:34,359 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5586ac87-622f-475b-84fd-94011b5bdf12/bin/utaipan-WLngWcDbfI/data/3b17be76e/29a835d6454445d4b0488a43e769d520/FLAG9d3f2b6bf [2021-10-11 02:22:34,866 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5586ac87-622f-475b-84fd-94011b5bdf12/bin/utaipan-WLngWcDbfI/data/3b17be76e/29a835d6454445d4b0488a43e769d520 [2021-10-11 02:22:34,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:22:34,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:22:34,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:34,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:22:34,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:22:34,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:34" (1/1) ... [2021-10-11 02:22:34,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3367c104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:34, skipping insertion in model container [2021-10-11 02:22:34,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:34" (1/1) ... [2021-10-11 02:22:34,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:22:34,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:22:35,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:35,138 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:22:35,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:35,171 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:22:35,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:35 WrapperNode [2021-10-11 02:22:35,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:35,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:35,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:22:35,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:22:35,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:35" (1/1) ... [2021-10-11 02:22:35,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:35" (1/1) ... [2021-10-11 02:22:35,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:35,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:22:35,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:22:35,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:22:35,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:35" (1/1) ... [2021-10-11 02:22:35,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:35" (1/1) ... [2021-10-11 02:22:35,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:35" (1/1) ... [2021-10-11 02:22:35,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:35" (1/1) ... [2021-10-11 02:22:35,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:35" (1/1) ... [2021-10-11 02:22:35,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:35" (1/1) ... [2021-10-11 02:22:35,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:35" (1/1) ... [2021-10-11 02:22:35,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:22:35,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:22:35,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:22:35,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:22:35,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:35" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5586ac87-622f-475b-84fd-94011b5bdf12/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:22:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:22:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:22:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:22:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:22:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:22:35,695 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:22:35,695 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-11 02:22:35,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:35 BoogieIcfgContainer [2021-10-11 02:22:35,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:22:35,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:22:35,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:22:35,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:22:35,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:22:34" (1/3) ... [2021-10-11 02:22:35,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b556c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:35, skipping insertion in model container [2021-10-11 02:22:35,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:35" (2/3) ... [2021-10-11 02:22:35,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b556c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:35, skipping insertion in model container [2021-10-11 02:22:35,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:35" (3/3) ... [2021-10-11 02:22:35,707 INFO L111 eAbstractionObserver]: Analyzing ICFG cstrlen.c [2021-10-11 02:22:35,721 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:22:35,724 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-10-11 02:22:35,735 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-11 02:22:35,792 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:22:35,792 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:22:35,792 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:22:35,792 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:22:35,792 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:22:35,793 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:22:35,793 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:22:35,793 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:22:35,806 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2021-10-11 02:22:35,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:22:35,811 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:35,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:22:35,812 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:22:35,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:35,818 INFO L82 PathProgramCache]: Analyzing trace with hash 2334, now seen corresponding path program 1 times [2021-10-11 02:22:35,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:35,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535631644] [2021-10-11 02:22:35,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:36,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:36,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535631644] [2021-10-11 02:22:36,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:36,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:22:36,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040407227] [2021-10-11 02:22:36,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:36,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:36,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:36,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:36,046 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2021-10-11 02:22:36,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:36,081 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-10-11 02:22:36,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:36,084 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2021-10-11 02:22:36,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:36,092 INFO L225 Difference]: With dead ends: 15 [2021-10-11 02:22:36,092 INFO L226 Difference]: Without dead ends: 7 [2021-10-11 02:22:36,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:36,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-11 02:22:36,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-11 02:22:36,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-11 02:22:36,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-10-11 02:22:36,134 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 2 [2021-10-11 02:22:36,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:36,135 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-10-11 02:22:36,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:36,135 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-10-11 02:22:36,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:22:36,136 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:36,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:22:36,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:22:36,136 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:22:36,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:36,138 INFO L82 PathProgramCache]: Analyzing trace with hash 72396, now seen corresponding path program 1 times [2021-10-11 02:22:36,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:36,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778207893] [2021-10-11 02:22:36,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:36,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:36,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778207893] [2021-10-11 02:22:36,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:36,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:22:36,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409799303] [2021-10-11 02:22:36,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:36,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:36,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:36,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:36,171 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand 3 states. [2021-10-11 02:22:36,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:36,180 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2021-10-11 02:22:36,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:36,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-10-11 02:22:36,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:36,181 INFO L225 Difference]: With dead ends: 7 [2021-10-11 02:22:36,181 INFO L226 Difference]: Without dead ends: 6 [2021-10-11 02:22:36,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:36,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2021-10-11 02:22:36,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-10-11 02:22:36,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-11 02:22:36,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2021-10-11 02:22:36,185 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 3 [2021-10-11 02:22:36,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:36,185 INFO L481 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2021-10-11 02:22:36,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:36,186 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2021-10-11 02:22:36,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:22:36,186 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:36,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:22:36,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:22:36,187 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:22:36,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:36,188 INFO L82 PathProgramCache]: Analyzing trace with hash 69573966, now seen corresponding path program 1 times [2021-10-11 02:22:36,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:36,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644735016] [2021-10-11 02:22:36,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:36,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:36,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644735016] [2021-10-11 02:22:36,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:36,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:22:36,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366297426] [2021-10-11 02:22:36,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:36,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:36,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:36,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:36,257 INFO L87 Difference]: Start difference. First operand 6 states and 5 transitions. Second operand 3 states. [2021-10-11 02:22:36,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:36,269 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2021-10-11 02:22:36,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:36,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 02:22:36,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:36,270 INFO L225 Difference]: With dead ends: 6 [2021-10-11 02:22:36,270 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:22:36,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:36,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:22:36,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:22:36,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:22:36,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:22:36,283 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-10-11 02:22:36,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:36,283 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:22:36,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:36,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:22:36,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:22:36,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:22:36,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:22:36,309 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-10-11 02:22:36,309 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:22:36,310 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2021-10-11 02:22:36,310 INFO L262 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2021-10-11 02:22:36,310 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-10-11 02:22:36,310 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2021-10-11 02:22:36,310 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:22:36,311 INFO L262 CegarLoopResult]: For program point L30-1(lines 30 31) no Hoare annotation was computed. [2021-10-11 02:22:36,311 INFO L258 CegarLoopResult]: At program point L30-3(lines 30 31) the Hoare annotation is: (<= ULTIMATE.start_build_nondet_String_~length~0 2147483647) [2021-10-11 02:22:36,311 INFO L258 CegarLoopResult]: At program point L30-4(lines 30 31) the Hoare annotation is: (<= ULTIMATE.start_build_nondet_String_~length~0 2147483647) [2021-10-11 02:22:36,311 INFO L262 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2021-10-11 02:22:36,312 INFO L258 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (and (<= 1 ULTIMATE.start_build_nondet_String_~length~0) (<= ULTIMATE.start_build_nondet_String_~length~0 2147483647)) [2021-10-11 02:22:36,312 INFO L262 CegarLoopResult]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2021-10-11 02:22:36,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:22:36 BoogieIcfgContainer [2021-10-11 02:22:36,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:22:36,329 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:22:36,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:22:36,330 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:22:36,330 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:35" (3/4) ... [2021-10-11 02:22:36,334 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:22:36,342 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-11 02:22:36,342 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-11 02:22:36,342 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:22:36,387 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5586ac87-622f-475b-84fd-94011b5bdf12/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:22:36,387 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:22:36,389 INFO L168 Benchmark]: Toolchain (without parser) took 1498.95 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 58.0 MB in the beginning and 89.7 MB in the end (delta: -31.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:22:36,389 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 98.6 MB. Free memory is still 74.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:22:36,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.39 ms. Allocated memory is still 98.6 MB. Free memory was 57.8 MB in the beginning and 74.5 MB in the end (delta: -16.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:36,391 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.53 ms. Allocated memory is still 98.6 MB. Free memory was 74.5 MB in the beginning and 72.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:36,391 INFO L168 Benchmark]: Boogie Preprocessor took 51.42 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 71.9 MB in the end (delta: 939.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:22:36,392 INFO L168 Benchmark]: RCFGBuilder took 396.33 ms. Allocated memory is still 98.6 MB. Free memory was 71.6 MB in the beginning and 55.1 MB in the end (delta: 16.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:36,393 INFO L168 Benchmark]: TraceAbstraction took 629.27 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 54.8 MB in the beginning and 92.6 MB in the end (delta: -37.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:22:36,394 INFO L168 Benchmark]: Witness Printer took 57.86 ms. Allocated memory is still 119.5 MB. Free memory was 92.6 MB in the beginning and 89.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:36,398 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 98.6 MB. Free memory is still 74.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 281.39 ms. Allocated memory is still 98.6 MB. Free memory was 57.8 MB in the beginning and 74.5 MB in the end (delta: -16.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.53 ms. Allocated memory is still 98.6 MB. Free memory was 74.5 MB in the beginning and 72.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.42 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 71.9 MB in the end (delta: 939.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 396.33 ms. Allocated memory is still 98.6 MB. Free memory was 71.6 MB in the beginning and 55.1 MB in the end (delta: 16.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 629.27 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 54.8 MB in the beginning and 92.6 MB in the end (delta: -37.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 57.86 ms. Allocated memory is still 119.5 MB. Free memory was 92.6 MB in the beginning and 89.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: length <= 2147483647 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: length <= 2147483647 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 <= length && length <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 13 SDslu, 0 SDs, 0 SdLazy, 13 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 4 NumberOfFragments, 13 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...