./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/sanfoundry_43_ground.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bf3bab4e-6523-49c0-9672-520ea870bfc7/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bf3bab4e-6523-49c0-9672-520ea870bfc7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bf3bab4e-6523-49c0-9672-520ea870bfc7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bf3bab4e-6523-49c0-9672-520ea870bfc7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-examples/sanfoundry_43_ground.i -s /tmp/vcloud-vcloud-master/worker/run_dir_bf3bab4e-6523-49c0-9672-520ea870bfc7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bf3bab4e-6523-49c0-9672-520ea870bfc7/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 09d0f89f9f5c05e5a1c2be78c272348efe147377 ................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:47:41,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:47:41,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:47:41,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:47:41,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:47:41,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:47:41,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:47:41,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:47:41,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:47:41,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:47:41,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:47:41,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:47:41,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:47:41,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:47:41,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:47:41,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:47:41,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:47:41,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:47:41,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:47:41,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:47:41,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:47:41,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:47:41,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:47:41,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:47:41,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:47:41,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:47:41,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:47:41,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:47:41,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:47:41,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:47:41,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:47:41,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:47:41,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:47:41,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:47:41,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:47:41,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:47:41,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:47:41,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:47:41,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:47:41,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:47:41,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:47:41,911 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bf3bab4e-6523-49c0-9672-520ea870bfc7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:47:41,944 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:47:41,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:47:41,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:47:41,945 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:47:41,945 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:47:41,945 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:47:41,945 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:47:41,946 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:47:41,946 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:47:41,946 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:47:41,946 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:47:41,946 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:47:41,946 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:47:41,948 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:47:41,948 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:47:41,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:47:41,949 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:47:41,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:47:41,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:47:41,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:47:41,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:47:41,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:47:41,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:47:41,951 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:47:41,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:47:41,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:47:41,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:47:41,952 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:47:41,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:47:41,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:47:41,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:47:41,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:47:41,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:47:41,953 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:47:41,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:47:41,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:47:41,955 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:47:41,955 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_bf3bab4e-6523-49c0-9672-520ea870bfc7/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 ! call(__VERIFIER_error())) ) 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 -> 09d0f89f9f5c05e5a1c2be78c272348efe147377 [2019-11-26 02:47:42,104 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:47:42,119 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:47:42,121 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:47:42,123 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:47:42,123 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:47:42,124 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bf3bab4e-6523-49c0-9672-520ea870bfc7/bin/utaipan/../../sv-benchmarks/c/array-examples/sanfoundry_43_ground.i [2019-11-26 02:47:42,178 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf3bab4e-6523-49c0-9672-520ea870bfc7/bin/utaipan/data/ed74d8786/34c8c487e4f047008caf2a934716b240/FLAGe08579423 [2019-11-26 02:47:42,581 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:47:42,581 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bf3bab4e-6523-49c0-9672-520ea870bfc7/sv-benchmarks/c/array-examples/sanfoundry_43_ground.i [2019-11-26 02:47:42,588 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf3bab4e-6523-49c0-9672-520ea870bfc7/bin/utaipan/data/ed74d8786/34c8c487e4f047008caf2a934716b240/FLAGe08579423 [2019-11-26 02:47:42,991 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bf3bab4e-6523-49c0-9672-520ea870bfc7/bin/utaipan/data/ed74d8786/34c8c487e4f047008caf2a934716b240 [2019-11-26 02:47:42,993 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:47:42,995 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:47:42,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:47:42,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:47:43,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:47:43,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:47:42" (1/1) ... [2019-11-26 02:47:43,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e635ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:43, skipping insertion in model container [2019-11-26 02:47:43,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:47:42" (1/1) ... [2019-11-26 02:47:43,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:47:43,026 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:47:43,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:47:43,232 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:47:43,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:47:43,258 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:47:43,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:43 WrapperNode [2019-11-26 02:47:43,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:47:43,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:47:43,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:47:43,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:47:43,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:43" (1/1) ... [2019-11-26 02:47:43,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:43" (1/1) ... [2019-11-26 02:47:43,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:47:43,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:47:43,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:47:43,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:47:43,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:43" (1/1) ... [2019-11-26 02:47:43,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:43" (1/1) ... [2019-11-26 02:47:43,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:43" (1/1) ... [2019-11-26 02:47:43,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:43" (1/1) ... [2019-11-26 02:47:43,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:43" (1/1) ... [2019-11-26 02:47:43,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:43" (1/1) ... [2019-11-26 02:47:43,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:43" (1/1) ... [2019-11-26 02:47:43,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:47:43,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:47:43,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:47:43,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:47:43,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf3bab4e-6523-49c0-9672-520ea870bfc7/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 [2019-11-26 02:47:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:47:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:47:43,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:47:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:47:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:47:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:47:43,763 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:47:43,763 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-26 02:47:43,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:47:43 BoogieIcfgContainer [2019-11-26 02:47:43,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:47:43,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:47:43,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:47:43,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:47:43,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:47:42" (1/3) ... [2019-11-26 02:47:43,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcf8914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:47:43, skipping insertion in model container [2019-11-26 02:47:43,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:47:43" (2/3) ... [2019-11-26 02:47:43,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcf8914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:47:43, skipping insertion in model container [2019-11-26 02:47:43,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:47:43" (3/3) ... [2019-11-26 02:47:43,771 INFO L109 eAbstractionObserver]: Analyzing ICFG sanfoundry_43_ground.i [2019-11-26 02:47:43,779 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:47:43,793 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2019-11-26 02:47:43,801 INFO L249 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2019-11-26 02:47:43,818 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:47:43,818 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:47:43,818 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:47:43,819 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:47:43,819 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:47:43,819 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:47:43,819 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:47:43,819 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:47:43,831 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2019-11-26 02:47:43,835 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:47:43,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2019-11-26 02:47:43,882 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:47:43,883 INFO L447 ceAbstractionStarter]: At program point L23-3(lines 23 25) the Hoare annotation is: true [2019-11-26 02:47:43,883 INFO L447 ceAbstractionStarter]: At program point L17-3(lines 17 19) the Hoare annotation is: true [2019-11-26 02:47:43,883 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:47:43,883 INFO L447 ceAbstractionStarter]: At program point L8-3(lines 8 10) the Hoare annotation is: true [2019-11-26 02:47:43,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:47:43 BoogieIcfgContainer [2019-11-26 02:47:43,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:47:43,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:47:43,891 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:47:43,891 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:47:43,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:47:43" (3/4) ... [2019-11-26 02:47:43,893 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:47:43,902 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-26 02:47:43,903 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-26 02:47:43,903 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:47:43,945 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bf3bab4e-6523-49c0-9672-520ea870bfc7/bin/utaipan/witness.graphml [2019-11-26 02:47:43,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:47:43,947 INFO L168 Benchmark]: Toolchain (without parser) took 951.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -108.4 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:47:43,947 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:47:43,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -150.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:47:43,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:47:43,948 INFO L168 Benchmark]: Boogie Preprocessor took 22.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:47:43,949 INFO L168 Benchmark]: RCFGBuilder took 454.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:47:43,949 INFO L168 Benchmark]: TraceAbstraction took 125.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:47:43,950 INFO L168 Benchmark]: Witness Printer took 54.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:47:43,952 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 262.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -150.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 454.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 125.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Witness Printer took 54.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 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. - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 0 error locations. Result: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred 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, 3 PreInvPairs, 3 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 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...