./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_b2_o3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_820c470b-ddd8-4cae-8f5e-c5785ac3884b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_820c470b-ddd8-4cae-8f5e-c5785ac3884b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_820c470b-ddd8-4cae-8f5e-c5785ac3884b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_820c470b-ddd8-4cae-8f5e-c5785ac3884b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b2_o3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_820c470b-ddd8-4cae-8f5e-c5785ac3884b/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_820c470b-ddd8-4cae-8f5e-c5785ac3884b/bin/utaipan --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 32bit --witnessprinter.graph.data.programhash 6d9304edeab15e85170ca5853f26517d34908a3d ........................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:25:51,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:25:51,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:25:51,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:25:51,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:25:51,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:25:51,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:25:51,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:25:51,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:25:51,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:25:51,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:25:51,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:25:51,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:25:51,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:25:51,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:25:51,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:25:51,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:25:51,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:25:51,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:25:51,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:25:51,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:25:51,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:25:51,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:25:51,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:25:51,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:25:51,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:25:51,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:25:51,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:25:51,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:25:51,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:25:51,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:25:51,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:25:51,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:25:51,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:25:51,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:25:51,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:25:51,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:25:51,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:25:51,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:25:51,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:25:51,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:25:51,639 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_820c470b-ddd8-4cae-8f5e-c5785ac3884b/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-11-30 02:25:51,683 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:25:51,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:25:51,685 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:25:51,685 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:25:51,685 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:25:51,686 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:25:51,686 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:25:51,686 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:25:51,686 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:25:51,686 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:25:51,687 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:25:51,688 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:25:51,688 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:25:51,688 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:25:51,688 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:25:51,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:25:51,689 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:25:51,690 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 02:25:51,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:25:51,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:25:51,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:25:51,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:25:51,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:25:51,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:25:51,691 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 02:25:51,691 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:25:51,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:25:51,692 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:25:51,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:25:51,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:25:51,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:25:51,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:25:51,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:25:51,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:25:51,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:25:51,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:25:51,695 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:25:51,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:25:51,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:25:51,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:25:51,696 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:25:51,696 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-vcloud-master/worker/run_dir_820c470b-ddd8-4cae-8f5e-c5785ac3884b/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_820c470b-ddd8-4cae-8f5e-c5785ac3884b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d9304edeab15e85170ca5853f26517d34908a3d [2020-11-30 02:25:52,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:25:52,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:25:52,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:25:52,057 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:25:52,058 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:25:52,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_820c470b-ddd8-4cae-8f5e-c5785ac3884b/bin/utaipan/../../sv-benchmarks/c/recursive-simple/id_b2_o3.c [2020-11-30 02:25:52,144 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_820c470b-ddd8-4cae-8f5e-c5785ac3884b/bin/utaipan/data/dd66f3a1a/e660bbaf1bc74c368308d4e16d19c046/FLAG359c0b10e [2020-11-30 02:25:52,623 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:25:52,624 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_820c470b-ddd8-4cae-8f5e-c5785ac3884b/sv-benchmarks/c/recursive-simple/id_b2_o3.c [2020-11-30 02:25:52,636 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_820c470b-ddd8-4cae-8f5e-c5785ac3884b/bin/utaipan/data/dd66f3a1a/e660bbaf1bc74c368308d4e16d19c046/FLAG359c0b10e [2020-11-30 02:25:53,023 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_820c470b-ddd8-4cae-8f5e-c5785ac3884b/bin/utaipan/data/dd66f3a1a/e660bbaf1bc74c368308d4e16d19c046 [2020-11-30 02:25:53,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:25:53,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:25:53,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:25:53,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:25:53,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:25:53,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:25:53" (1/1) ... [2020-11-30 02:25:53,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df4dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:25:53, skipping insertion in model container [2020-11-30 02:25:53,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:25:53" (1/1) ... [2020-11-30 02:25:53,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:25:53,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:25:53,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:25:53,257 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:25:53,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:25:53,281 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:25:53,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:25:53 WrapperNode [2020-11-30 02:25:53,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:25:53,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:25:53,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:25:53,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:25:53,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:25:53" (1/1) ... [2020-11-30 02:25:53,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:25:53" (1/1) ... [2020-11-30 02:25:53,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:25:53,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:25:53,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:25:53,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:25:53,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:25:53" (1/1) ... [2020-11-30 02:25:53,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:25:53" (1/1) ... [2020-11-30 02:25:53,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:25:53" (1/1) ... [2020-11-30 02:25:53,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:25:53" (1/1) ... [2020-11-30 02:25:53,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:25:53" (1/1) ... [2020-11-30 02:25:53,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:25:53" (1/1) ... [2020-11-30 02:25:53,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:25:53" (1/1) ... [2020-11-30 02:25:53,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:25:53,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:25:53,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:25:53,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:25:53,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:25:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_820c470b-ddd8-4cae-8f5e-c5785ac3884b/bin/utaipan/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 [2020-11-30 02:25:53,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:25:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:25:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:25:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-11-30 02:25:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-11-30 02:25:53,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:25:53,693 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:25:53,693 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-30 02:25:53,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:25:53 BoogieIcfgContainer [2020-11-30 02:25:53,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:25:53,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:25:53,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:25:53,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:25:53,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:25:53" (1/3) ... [2020-11-30 02:25:53,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209ca7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:25:53, skipping insertion in model container [2020-11-30 02:25:53,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:25:53" (2/3) ... [2020-11-30 02:25:53,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209ca7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:25:53, skipping insertion in model container [2020-11-30 02:25:53,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:25:53" (3/3) ... [2020-11-30 02:25:53,719 INFO L111 eAbstractionObserver]: Analyzing ICFG id_b2_o3.c [2020-11-30 02:25:53,729 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:25:53,743 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-11-30 02:25:53,753 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-11-30 02:25:53,773 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:25:53,773 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:25:53,773 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:25:53,773 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:25:53,773 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:25:53,773 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:25:53,774 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:25:53,774 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:25:53,785 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-30 02:25:53,790 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 02:25:53,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-11-30 02:25:53,843 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 02:25:53,844 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 02:25:53,844 INFO L277 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-11-30 02:25:53,844 INFO L274 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-11-30 02:25:53,844 INFO L274 CegarLoopResult]: For program point idFINAL(lines 6 11) no Hoare annotation was computed. [2020-11-30 02:25:53,844 INFO L274 CegarLoopResult]: For program point idEXIT(lines 6 11) no Hoare annotation was computed. [2020-11-30 02:25:53,845 INFO L277 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-11-30 02:25:53,845 INFO L277 CegarLoopResult]: At program point idENTRY(lines 6 11) the Hoare annotation is: true [2020-11-30 02:25:53,845 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-11-30 02:25:53,845 INFO L274 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-11-30 02:25:53,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:25:53 BoogieIcfgContainer [2020-11-30 02:25:53,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:25:53,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:25:53,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:25:53,851 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:25:53,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:25:53" (3/4) ... [2020-11-30 02:25:53,855 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 02:25:53,862 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2020-11-30 02:25:53,865 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-30 02:25:53,866 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 02:25:53,866 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 02:25:53,866 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:25:53,910 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_820c470b-ddd8-4cae-8f5e-c5785ac3884b/bin/utaipan/witness.graphml [2020-11-30 02:25:53,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:25:53,920 INFO L168 Benchmark]: Toolchain (without parser) took 875.12 ms. Allocated memory is still 98.6 MB. Free memory was 79.2 MB in the beginning and 77.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:25:53,921 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 77.6 MB. Free memory was 57.4 MB in the beginning and 57.4 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:25:53,922 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.87 ms. Allocated memory is still 98.6 MB. Free memory was 79.2 MB in the beginning and 77.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:25:53,923 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.99 ms. Allocated memory is still 98.6 MB. Free memory was 76.8 MB in the beginning and 75.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:25:53,924 INFO L168 Benchmark]: Boogie Preprocessor took 28.41 ms. Allocated memory is still 98.6 MB. Free memory was 75.5 MB in the beginning and 74.6 MB in the end (delta: 902.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:25:53,924 INFO L168 Benchmark]: RCFGBuilder took 354.94 ms. Allocated memory is still 98.6 MB. Free memory was 74.6 MB in the beginning and 60.1 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 02:25:53,925 INFO L168 Benchmark]: TraceAbstraction took 152.18 ms. Allocated memory is still 98.6 MB. Free memory was 59.7 MB in the beginning and 52.3 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 02:25:53,926 INFO L168 Benchmark]: Witness Printer took 67.73 ms. Allocated memory is still 98.6 MB. Free memory was 52.3 MB in the beginning and 77.5 MB in the end (delta: -25.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-11-30 02:25:53,930 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 77.6 MB. Free memory was 57.4 MB in the beginning and 57.4 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 232.87 ms. Allocated memory is still 98.6 MB. Free memory was 79.2 MB in the beginning and 77.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.99 ms. Allocated memory is still 98.6 MB. Free memory was 76.8 MB in the beginning and 75.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.41 ms. Allocated memory is still 98.6 MB. Free memory was 75.5 MB in the beginning and 74.6 MB in the end (delta: 902.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 354.94 ms. Allocated memory is still 98.6 MB. Free memory was 74.6 MB in the beginning and 60.1 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 152.18 ms. Allocated memory is still 98.6 MB. Free memory was 59.7 MB in the beginning and 52.3 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Witness Printer took 67.73 ms. Allocated memory is still 98.6 MB. Free memory was 52.3 MB in the beginning and 77.5 MB in the end (delta: -25.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...