./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b3_o2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_989d8046-5233-4508-af72-750528091f59/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989d8046-5233-4508-af72-750528091f59/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_989d8046-5233-4508-af72-750528091f59/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989d8046-5233-4508-af72-750528091f59/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b3_o2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989d8046-5233-4508-af72-750528091f59/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989d8046-5233-4508-af72-750528091f59/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 32bit --witnessprinter.graph.data.programhash 22bfff7e0bc9ff374f4201c2281f2aec36cb181e ..................................................................................................................................................................................................................................................... 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 02:28:23,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:28:23,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:28:23,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:28:23,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:28:23,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:28:23,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:28:23,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:28:23,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:28:23,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:28:23,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:28:23,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:28:23,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:28:23,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:28:23,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:28:23,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:28:23,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:28:23,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:28:23,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:28:23,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:28:23,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:28:23,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:28:23,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:28:23,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:28:23,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:28:23,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:28:23,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:28:23,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:28:23,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:28:23,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:28:23,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:28:23,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:28:23,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:28:23,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:28:23,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:28:23,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:28:23,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:28:23,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:28:23,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:28:23,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:28:23,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:28:23,244 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989d8046-5233-4508-af72-750528091f59/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-11 02:28:23,294 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:28:23,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:28:23,295 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:28:23,295 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:28:23,296 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:28:23,296 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:28:23,296 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:28:23,296 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:28:23,296 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:28:23,296 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:28:23,297 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:28:23,297 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:28:23,297 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:28:23,297 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:28:23,297 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:28:23,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:28:23,298 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:28:23,299 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:28:23,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:28:23,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:28:23,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:28:23,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:28:23,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:28:23,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:28:23,300 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 02:28:23,300 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:28:23,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:28:23,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:28:23,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:28:23,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:28:23,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:28:23,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:28:23,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:28:23,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:28:23,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:28:23,302 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:28:23,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:28:23,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:28:23,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:28:23,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:28:23,303 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_989d8046-5233-4508-af72-750528091f59/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989d8046-5233-4508-af72-750528091f59/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22bfff7e0bc9ff374f4201c2281f2aec36cb181e [2021-10-11 02:28:23,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:28:23,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:28:23,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:28:23,614 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:28:23,615 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:28:23,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989d8046-5233-4508-af72-750528091f59/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/recursive-simple/id2_b3_o2.c [2021-10-11 02:28:23,681 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989d8046-5233-4508-af72-750528091f59/bin/utaipan-WLngWcDbfI/data/918ab40f0/78cffeecaabf441b8360cb704cddc245/FLAGd40fba955 [2021-10-11 02:28:24,138 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:28:24,138 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989d8046-5233-4508-af72-750528091f59/sv-benchmarks/c/recursive-simple/id2_b3_o2.c [2021-10-11 02:28:24,146 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989d8046-5233-4508-af72-750528091f59/bin/utaipan-WLngWcDbfI/data/918ab40f0/78cffeecaabf441b8360cb704cddc245/FLAGd40fba955 [2021-10-11 02:28:24,542 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989d8046-5233-4508-af72-750528091f59/bin/utaipan-WLngWcDbfI/data/918ab40f0/78cffeecaabf441b8360cb704cddc245 [2021-10-11 02:28:24,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:28:24,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:28:24,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:24,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:28:24,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:28:24,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:24" (1/1) ... [2021-10-11 02:28:24,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10003c08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:24, skipping insertion in model container [2021-10-11 02:28:24,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:24" (1/1) ... [2021-10-11 02:28:24,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:28:24,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:28:24,782 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989d8046-5233-4508-af72-750528091f59/sv-benchmarks/c/recursive-simple/id2_b3_o2.c[771,784] [2021-10-11 02:28:24,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:24,792 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:28:24,806 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989d8046-5233-4508-af72-750528091f59/sv-benchmarks/c/recursive-simple/id2_b3_o2.c[771,784] [2021-10-11 02:28:24,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:24,819 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:28:24,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:24 WrapperNode [2021-10-11 02:28:24,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:24,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:24,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:28:24,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:28:24,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:24" (1/1) ... [2021-10-11 02:28:24,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:24" (1/1) ... [2021-10-11 02:28:24,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:24,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:28:24,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:28:24,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:28:24,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:24" (1/1) ... [2021-10-11 02:28:24,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:24" (1/1) ... [2021-10-11 02:28:24,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:24" (1/1) ... [2021-10-11 02:28:24,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:24" (1/1) ... [2021-10-11 02:28:24,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:24" (1/1) ... [2021-10-11 02:28:24,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:24" (1/1) ... [2021-10-11 02:28:24,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:24" (1/1) ... [2021-10-11 02:28:24,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:28:24,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:28:24,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:28:24,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:28:24,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:24" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989d8046-5233-4508-af72-750528091f59/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 02:28:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:28:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:28:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2021-10-11 02:28:24,953 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2021-10-11 02:28:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:28:24,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:28:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-10-11 02:28:24,954 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-10-11 02:28:25,317 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:28:25,317 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:28:25,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:25 BoogieIcfgContainer [2021-10-11 02:28:25,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:28:25,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:28:25,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:28:25,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:28:25,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:28:24" (1/3) ... [2021-10-11 02:28:25,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd15bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:25, skipping insertion in model container [2021-10-11 02:28:25,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:24" (2/3) ... [2021-10-11 02:28:25,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd15bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:25, skipping insertion in model container [2021-10-11 02:28:25,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:25" (3/3) ... [2021-10-11 02:28:25,333 INFO L111 eAbstractionObserver]: Analyzing ICFG id2_b3_o2.c [2021-10-11 02:28:25,364 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:28:25,367 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2021-10-11 02:28:25,376 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2021-10-11 02:28:25,403 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:28:25,403 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:28:25,403 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:28:25,403 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:28:25,404 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:28:25,404 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:28:25,404 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:28:25,404 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:28:25,416 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2021-10-11 02:28:25,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:28:25,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2021-10-11 02:28:25,494 INFO L262 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2021-10-11 02:28:25,494 INFO L262 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2021-10-11 02:28:25,494 INFO L262 CegarLoopResult]: For program point id2EXIT(lines 16 21) no Hoare annotation was computed. [2021-10-11 02:28:25,495 INFO L265 CegarLoopResult]: At program point id2ENTRY(lines 16 21) the Hoare annotation is: true [2021-10-11 02:28:25,495 INFO L262 CegarLoopResult]: For program point id2FINAL(lines 16 21) no Hoare annotation was computed. [2021-10-11 02:28:25,495 INFO L265 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2021-10-11 02:28:25,495 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:28:25,496 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:28:25,496 INFO L265 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2021-10-11 02:28:25,496 INFO L262 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-10-11 02:28:25,496 INFO L262 CegarLoopResult]: For program point idFINAL(lines 9 14) no Hoare annotation was computed. [2021-10-11 02:28:25,496 INFO L265 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: true [2021-10-11 02:28:25,497 INFO L262 CegarLoopResult]: For program point idEXIT(lines 9 14) no Hoare annotation was computed. [2021-10-11 02:28:25,497 INFO L262 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2021-10-11 02:28:25,497 INFO L262 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2021-10-11 02:28:25,497 INFO L265 CegarLoopResult]: At program point idENTRY(lines 9 14) the Hoare annotation is: true [2021-10-11 02:28:25,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:28:25 BoogieIcfgContainer [2021-10-11 02:28:25,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:28:25,502 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:28:25,502 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:28:25,503 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:28:25,503 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:25" (3/4) ... [2021-10-11 02:28:25,507 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:28:25,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2021-10-11 02:28:25,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2021-10-11 02:28:25,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-11 02:28:25,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:28:25,519 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:28:25,519 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:28:25,566 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989d8046-5233-4508-af72-750528091f59/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:28:25,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:28:25,568 INFO L168 Benchmark]: Toolchain (without parser) took 1018.97 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 50.1 MB in the beginning and 87.1 MB in the end (delta: -37.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:25,569 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 66.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:25,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.53 ms. Allocated memory is still 90.2 MB. Free memory was 49.9 MB in the beginning and 66.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:25,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.48 ms. Allocated memory is still 90.2 MB. Free memory was 66.7 MB in the beginning and 65.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:25,571 INFO L168 Benchmark]: Boogie Preprocessor took 18.45 ms. Allocated memory is still 90.2 MB. Free memory was 65.6 MB in the beginning and 64.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:25,572 INFO L168 Benchmark]: RCFGBuilder took 453.52 ms. Allocated memory is still 90.2 MB. Free memory was 64.5 MB in the beginning and 47.9 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:25,573 INFO L168 Benchmark]: TraceAbstraction took 176.04 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 47.5 MB in the beginning and 89.2 MB in the end (delta: -41.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:25,573 INFO L168 Benchmark]: Witness Printer took 64.51 ms. Allocated memory is still 117.4 MB. Free memory was 89.2 MB in the beginning and 87.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:25,577 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 66.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 265.53 ms. Allocated memory is still 90.2 MB. Free memory was 49.9 MB in the beginning and 66.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 25.48 ms. Allocated memory is still 90.2 MB. Free memory was 66.7 MB in the beginning and 65.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.45 ms. Allocated memory is still 90.2 MB. Free memory was 65.6 MB in the beginning and 64.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 453.52 ms. Allocated memory is still 90.2 MB. Free memory was 64.5 MB in the beginning and 47.9 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 176.04 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 47.5 MB in the beginning and 89.2 MB in the end (delta: -41.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 64.51 ms. Allocated memory is still 117.4 MB. Free memory was 89.2 MB in the beginning and 87.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 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 3 procedures, 16 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=16occurred 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, 5 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 5 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 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...