./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_trans.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ca10bc14-a026-4eb6-bd19-341749d9f393/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ca10bc14-a026-4eb6-bd19-341749d9f393/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ca10bc14-a026-4eb6-bd19-341749d9f393/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ca10bc14-a026-4eb6-bd19-341749d9f393/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_trans.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ca10bc14-a026-4eb6-bd19-341749d9f393/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ca10bc14-a026-4eb6-bd19-341749d9f393/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 6b853b7a72b17d5b4054a16a7ba98c728e55c23b ...................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:25,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:25,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:25,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:25,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:25,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:25,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:25,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:25,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:25,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:25,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:25,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:25,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:25,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:25,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:25,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:25,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:25,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:25,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:25,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:25,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:25,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:25,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:25,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:25,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:25,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:25,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:25,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:25,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:25,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:25,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:25,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:25,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:25,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:25,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:25,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:25,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:25,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:25,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:25,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:25,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:25,892 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ca10bc14-a026-4eb6-bd19-341749d9f393/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:25:25,902 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:25,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:25,903 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:25,904 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:25,904 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:25,904 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:25,904 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:25:25,904 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:25,904 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:25,904 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:25:25,905 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:25:25,905 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:25,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:25,906 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:25,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:25:25,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:25,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:25,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:25,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:25,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:25,907 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:25,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:25,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:25,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:25,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:25,908 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:25,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:25,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:25,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:25,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:25,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:25,909 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:25:25,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:25:25,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:25,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:25,912 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/working_dir_ca10bc14-a026-4eb6-bd19-341749d9f393/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 -> 6b853b7a72b17d5b4054a16a7ba98c728e55c23b [2019-10-22 11:25:25,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:25,946 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:25,949 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:25,951 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:25,951 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:25,952 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ca10bc14-a026-4eb6-bd19-341749d9f393/bin/utaipan/../../sv-benchmarks/c/loop-invgen/id_trans.i [2019-10-22 11:25:25,996 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ca10bc14-a026-4eb6-bd19-341749d9f393/bin/utaipan/data/ca395532f/3472c0637479461d8faf63313f5144b2/FLAG0799d9c38 [2019-10-22 11:25:26,393 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:26,393 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ca10bc14-a026-4eb6-bd19-341749d9f393/sv-benchmarks/c/loop-invgen/id_trans.i [2019-10-22 11:25:26,398 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ca10bc14-a026-4eb6-bd19-341749d9f393/bin/utaipan/data/ca395532f/3472c0637479461d8faf63313f5144b2/FLAG0799d9c38 [2019-10-22 11:25:26,785 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ca10bc14-a026-4eb6-bd19-341749d9f393/bin/utaipan/data/ca395532f/3472c0637479461d8faf63313f5144b2 [2019-10-22 11:25:26,788 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:26,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:26,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:26,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:26,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:26,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:26" (1/1) ... [2019-10-22 11:25:26,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2370193f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:26, skipping insertion in model container [2019-10-22 11:25:26,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:26" (1/1) ... [2019-10-22 11:25:26,803 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:26,823 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:27,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:27,008 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:27,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:27,105 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:27,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:27 WrapperNode [2019-10-22 11:25:27,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:27,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:27,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:27,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:27,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:27" (1/1) ... [2019-10-22 11:25:27,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:27" (1/1) ... [2019-10-22 11:25:27,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:27,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:27,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:27,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:27,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:27" (1/1) ... [2019-10-22 11:25:27,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:27" (1/1) ... [2019-10-22 11:25:27,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:27" (1/1) ... [2019-10-22 11:25:27,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:27" (1/1) ... [2019-10-22 11:25:27,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:27" (1/1) ... [2019-10-22 11:25:27,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:27" (1/1) ... [2019-10-22 11:25:27,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:27" (1/1) ... [2019-10-22 11:25:27,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:27,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:27,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:27,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:27,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ca10bc14-a026-4eb6-bd19-341749d9f393/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 [2019-10-22 11:25:27,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:27,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:27,389 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:27,390 INFO L284 CfgBuilder]: Removed 13 assume(true) statements. [2019-10-22 11:25:27,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:27 BoogieIcfgContainer [2019-10-22 11:25:27,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:27,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:27,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:27,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:27,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:26" (1/3) ... [2019-10-22 11:25:27,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f960d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:27, skipping insertion in model container [2019-10-22 11:25:27,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:27" (2/3) ... [2019-10-22 11:25:27,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f960d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:27, skipping insertion in model container [2019-10-22 11:25:27,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:27" (3/3) ... [2019-10-22 11:25:27,400 INFO L109 eAbstractionObserver]: Analyzing ICFG id_trans.i [2019-10-22 11:25:27,429 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:27,436 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-10-22 11:25:27,448 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-10-22 11:25:27,491 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:27,491 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:27,491 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:27,491 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:27,492 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:27,492 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:27,492 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:27,492 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:27,506 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-10-22 11:25:27,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 11:25:27,524 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:27,525 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 11:25:27,527 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:27,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:27,533 INFO L82 PathProgramCache]: Analyzing trace with hash 29745418, now seen corresponding path program 1 times [2019-10-22 11:25:27,542 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:27,543 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640402148] [2019-10-22 11:25:27,543 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:27,543 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:27,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:27,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:27,725 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640402148] [2019-10-22 11:25:27,726 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:27,726 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:25:27,726 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072349420] [2019-10-22 11:25:27,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:25:27,732 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:27,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:25:27,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:25:27,745 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2019-10-22 11:25:27,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:27,821 INFO L93 Difference]: Finished difference Result 48 states and 59 transitions. [2019-10-22 11:25:27,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:25:27,823 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-10-22 11:25:27,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:27,830 INFO L225 Difference]: With dead ends: 48 [2019-10-22 11:25:27,830 INFO L226 Difference]: Without dead ends: 16 [2019-10-22 11:25:27,833 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:27,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-22 11:25:27,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-10-22 11:25:27,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-22 11:25:27,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-10-22 11:25:27,859 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5 [2019-10-22 11:25:27,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:27,860 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-10-22 11:25:27,860 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:25:27,860 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-10-22 11:25:27,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:25:27,860 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:27,860 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:27,861 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:27,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:27,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1479268755, now seen corresponding path program 1 times [2019-10-22 11:25:27,861 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:27,862 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220005645] [2019-10-22 11:25:27,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:27,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:27,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:27,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:27,901 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220005645] [2019-10-22 11:25:27,901 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:27,901 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:25:27,901 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101319105] [2019-10-22 11:25:27,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:25:27,903 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:27,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:25:27,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:25:27,904 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 4 states. [2019-10-22 11:25:27,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:27,949 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-10-22 11:25:27,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:25:27,950 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 11:25:27,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:27,950 INFO L225 Difference]: With dead ends: 16 [2019-10-22 11:25:27,950 INFO L226 Difference]: Without dead ends: 14 [2019-10-22 11:25:27,951 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:27,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-22 11:25:27,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-10-22 11:25:27,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-22 11:25:27,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-10-22 11:25:27,955 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2019-10-22 11:25:27,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:27,955 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-10-22 11:25:27,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:25:27,956 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-10-22 11:25:27,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:25:27,956 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:27,956 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:27,957 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:27,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:27,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1002264813, now seen corresponding path program 1 times [2019-10-22 11:25:27,957 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:27,957 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006418467] [2019-10-22 11:25:27,958 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:27,958 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:27,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:25:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:25:28,028 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:25:28,029 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:25:28,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:25:28 BoogieIcfgContainer [2019-10-22 11:25:28,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:25:28,046 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:25:28,046 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:25:28,047 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:25:28,047 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:27" (3/4) ... [2019-10-22 11:25:28,050 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:25:28,088 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ca10bc14-a026-4eb6-bd19-341749d9f393/bin/utaipan/witness.graphml [2019-10-22 11:25:28,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:25:28,089 INFO L168 Benchmark]: Toolchain (without parser) took 1299.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -126.3 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:28,091 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:28,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:28,092 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:28,093 INFO L168 Benchmark]: Boogie Preprocessor took 19.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:28,093 INFO L168 Benchmark]: RCFGBuilder took 234.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:28,094 INFO L168 Benchmark]: TraceAbstraction took 653.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.7 MB). Peak memory consumption was 39.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:28,094 INFO L168 Benchmark]: Witness Printer took 41.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:28,097 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 315.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 234.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 653.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.7 MB). Peak memory consumption was 39.7 MB. Max. memory is 11.5 GB. * Witness Printer took 41.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] int idBitLength, material_length, nlen; [L12] int j, k; [L13] nlen = __VERIFIER_nondet_int() [L14] idBitLength = __VERIFIER_nondet_int() [L15] material_length = __VERIFIER_nondet_int() [L16] COND FALSE !(!( nlen == idBitLength / 32 )) [L17] j = 0 [L17] COND TRUE (j < idBitLength / 8) && (j < material_length) [L4] COND FALSE !(!(cond)) [L4] COND FALSE !(!(cond)) [L4] COND FALSE !(!(cond)) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 25 SDslu, 16 SDs, 0 SdLazy, 29 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...