./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/rule60_list_true-termination.c_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_031ca0e3-cfe2-4ff6-ab9a-f24a9739f578/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_031ca0e3-cfe2-4ff6-ab9a-f24a9739f578/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_031ca0e3-cfe2-4ff6-ab9a-f24a9739f578/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_031ca0e3-cfe2-4ff6-ab9a-f24a9739f578/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/rule60_list_true-termination.c_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_031ca0e3-cfe2-4ff6-ab9a-f24a9739f578/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_031ca0e3-cfe2-4ff6-ab9a-f24a9739f578/bin-2019/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 99300654c640d2c4f7b9514479be090401414cf7 ................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 06:57:14,902 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:57:14,903 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:57:14,909 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:57:14,910 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:57:14,910 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:57:14,911 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:57:14,912 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:57:14,914 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:57:14,914 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:57:14,915 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:57:14,915 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:57:14,916 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:57:14,916 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:57:14,917 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:57:14,917 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:57:14,918 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:57:14,919 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:57:14,920 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:57:14,921 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:57:14,921 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:57:14,922 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:57:14,923 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:57:14,923 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:57:14,923 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:57:14,924 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:57:14,924 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:57:14,925 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:57:14,925 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:57:14,926 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:57:14,926 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:57:14,926 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:57:14,926 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:57:14,926 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:57:14,927 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:57:14,928 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:57:14,928 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_031ca0e3-cfe2-4ff6-ab9a-f24a9739f578/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 06:57:14,937 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:57:14,937 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:57:14,937 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 06:57:14,938 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 06:57:14,938 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 06:57:14,938 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 06:57:14,938 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 06:57:14,938 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 06:57:14,938 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 06:57:14,938 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 06:57:14,939 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 06:57:14,939 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:57:14,939 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 06:57:14,939 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 06:57:14,940 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 06:57:14,940 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:57:14,940 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 06:57:14,940 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 06:57:14,940 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 06:57:14,940 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 06:57:14,940 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 06:57:14,941 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 06:57:14,941 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:57:14,941 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 06:57:14,941 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 06:57:14,941 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 06:57:14,941 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:57:14,941 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:57:14,942 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 06:57:14,942 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 06:57:14,942 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 06:57:14,942 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 06:57:14,942 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 06:57:14,942 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 06:57:14,942 INFO L133 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_031ca0e3-cfe2-4ff6-ab9a-f24a9739f578/bin-2019/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 -> 99300654c640d2c4f7b9514479be090401414cf7 [2018-11-10 06:57:14,967 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:57:14,978 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:57:14,981 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:57:14,982 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:57:14,983 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:57:14,983 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_031ca0e3-cfe2-4ff6-ab9a-f24a9739f578/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/rule60_list_true-termination.c_true-unreach-call.i [2018-11-10 06:57:15,044 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_031ca0e3-cfe2-4ff6-ab9a-f24a9739f578/bin-2019/utaipan/data/f12c5a8a0/b8ba359c92ff42fd8b77692e1f0d7a71/FLAG681009fcb [2018-11-10 06:57:15,469 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:57:15,469 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_031ca0e3-cfe2-4ff6-ab9a-f24a9739f578/sv-benchmarks/c/ldv-regression/rule60_list_true-termination.c_true-unreach-call.i [2018-11-10 06:57:15,478 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_031ca0e3-cfe2-4ff6-ab9a-f24a9739f578/bin-2019/utaipan/data/f12c5a8a0/b8ba359c92ff42fd8b77692e1f0d7a71/FLAG681009fcb [2018-11-10 06:57:15,493 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_031ca0e3-cfe2-4ff6-ab9a-f24a9739f578/bin-2019/utaipan/data/f12c5a8a0/b8ba359c92ff42fd8b77692e1f0d7a71 [2018-11-10 06:57:15,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:57:15,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 06:57:15,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:57:15,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:57:15,503 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:57:15,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:57:15" (1/1) ... [2018-11-10 06:57:15,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b82a653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:57:15, skipping insertion in model container [2018-11-10 06:57:15,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:57:15" (1/1) ... [2018-11-10 06:57:15,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:57:15,549 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:57:15,791 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:57:15,799 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:57:15,832 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:57:15,865 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:57:15,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:57:15 WrapperNode [2018-11-10 06:57:15,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:57:15,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 06:57:15,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 06:57:15,866 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 06:57:15,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:57:15" (1/1) ... [2018-11-10 06:57:15,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:57:15" (1/1) ... [2018-11-10 06:57:15,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 06:57:15,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:57:15,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:57:15,958 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:57:15,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:57:15" (1/1) ... [2018-11-10 06:57:15,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:57:15" (1/1) ... [2018-11-10 06:57:15,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:57:15" (1/1) ... [2018-11-10 06:57:15,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:57:15" (1/1) ... [2018-11-10 06:57:15,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:57:15" (1/1) ... [2018-11-10 06:57:15,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:57:15" (1/1) ... [2018-11-10 06:57:15,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:57:15" (1/1) ... [2018-11-10 06:57:15,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:57:15,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:57:15,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:57:15,986 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:57:15,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:57:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_031ca0e3-cfe2-4ff6-ab9a-f24a9739f578/bin-2019/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 [2018-11-10 06:57:16,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 06:57:16,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 06:57:16,039 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 06:57:16,040 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 06:57:16,040 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2018-11-10 06:57:16,040 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2018-11-10 06:57:16,040 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-10 06:57:16,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-10 06:57:16,040 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2018-11-10 06:57:16,040 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2018-11-10 06:57:16,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:57:16,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:57:16,299 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:57:16,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:57:16 BoogieIcfgContainer [2018-11-10 06:57:16,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:57:16,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 06:57:16,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 06:57:16,302 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 06:57:16,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:57:15" (1/3) ... [2018-11-10 06:57:16,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@932b42d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:57:16, skipping insertion in model container [2018-11-10 06:57:16,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:57:15" (2/3) ... [2018-11-10 06:57:16,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@932b42d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:57:16, skipping insertion in model container [2018-11-10 06:57:16,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:57:16" (3/3) ... [2018-11-10 06:57:16,305 INFO L112 eAbstractionObserver]: Analyzing ICFG rule60_list_true-termination.c_true-unreach-call.i [2018-11-10 06:57:16,312 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 06:57:16,318 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 06:57:16,334 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 06:57:16,358 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 06:57:16,358 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 06:57:16,358 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 06:57:16,359 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 06:57:16,359 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 06:57:16,359 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 06:57:16,359 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 06:57:16,359 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 06:57:16,372 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-11-10 06:57:16,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 06:57:16,377 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:57:16,378 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:57:16,379 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:57:16,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:57:16,384 INFO L82 PathProgramCache]: Analyzing trace with hash -258912463, now seen corresponding path program 1 times [2018-11-10 06:57:16,386 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:57:16,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:57:16,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:57:16,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:57:16,439 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:57:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:57:16,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:57:16,694 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:57:16,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 06:57:16,694 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:57:16,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 06:57:16,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 06:57:16,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-10 06:57:16,712 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 7 states. [2018-11-10 06:57:16,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:57:16,869 INFO L93 Difference]: Finished difference Result 55 states and 66 transitions. [2018-11-10 06:57:16,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 06:57:16,871 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2018-11-10 06:57:16,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:57:16,878 INFO L225 Difference]: With dead ends: 55 [2018-11-10 06:57:16,878 INFO L226 Difference]: Without dead ends: 26 [2018-11-10 06:57:16,881 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-10 06:57:16,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-10 06:57:16,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-10 06:57:16,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-10 06:57:16,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-11-10 06:57:16,916 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 12 [2018-11-10 06:57:16,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:57:16,916 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-11-10 06:57:16,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 06:57:16,917 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-11-10 06:57:16,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 06:57:16,917 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:57:16,918 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:57:16,918 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:57:16,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:57:16,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1212053608, now seen corresponding path program 1 times [2018-11-10 06:57:16,919 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:57:16,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:57:16,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:57:16,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:57:16,922 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:57:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:57:17,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:57:17,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:57:17,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 06:57:17,125 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:57:17,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 06:57:17,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 06:57:17,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-10 06:57:17,127 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 9 states. [2018-11-10 06:57:17,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:57:17,286 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2018-11-10 06:57:17,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 06:57:17,287 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-11-10 06:57:17,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:57:17,288 INFO L225 Difference]: With dead ends: 28 [2018-11-10 06:57:17,288 INFO L226 Difference]: Without dead ends: 25 [2018-11-10 06:57:17,289 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-11-10 06:57:17,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-10 06:57:17,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-10 06:57:17,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-10 06:57:17,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2018-11-10 06:57:17,294 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 18 [2018-11-10 06:57:17,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:57:17,295 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2018-11-10 06:57:17,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 06:57:17,295 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2018-11-10 06:57:17,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 06:57:17,296 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:57:17,296 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:57:17,297 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:57:17,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:57:17,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1274253061, now seen corresponding path program 1 times [2018-11-10 06:57:17,297 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:57:17,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:57:17,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:57:17,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:57:17,299 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:57:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:57:17,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:57:17,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:57:17,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 06:57:17,456 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:57:17,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 06:57:17,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 06:57:17,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-10 06:57:17,458 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 9 states. [2018-11-10 06:57:17,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:57:17,563 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2018-11-10 06:57:17,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 06:57:17,565 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-11-10 06:57:17,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:57:17,566 INFO L225 Difference]: With dead ends: 25 [2018-11-10 06:57:17,566 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 06:57:17,567 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-11-10 06:57:17,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 06:57:17,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 06:57:17,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 06:57:17,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 06:57:17,568 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-11-10 06:57:17,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:57:17,568 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 06:57:17,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 06:57:17,568 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 06:57:17,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 06:57:17,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 06:57:17,710 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 06:57:17,710 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 06:57:17,710 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 06:57:17,711 INFO L425 ceAbstractionStarter]: For program point list_delFINAL(lines 871 874) no Hoare annotation was computed. [2018-11-10 06:57:17,711 INFO L425 ceAbstractionStarter]: For program point list_delEXIT(lines 871 874) no Hoare annotation was computed. [2018-11-10 06:57:17,711 INFO L425 ceAbstractionStarter]: For program point L872(line 872) no Hoare annotation was computed. [2018-11-10 06:57:17,711 INFO L421 ceAbstractionStarter]: At program point list_delENTRY(lines 871 874) the Hoare annotation is: (let ((.cse0 (+ 0 8))) (or (= 1 (select (select |#memory_int| |list_del_#in~entry.base|) .cse0)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) .cse0) 1)) (not (= 0 |list_del_#in~entry.offset|)) (not (= 0 |~#head~0.offset|)))) [2018-11-10 06:57:17,711 INFO L421 ceAbstractionStarter]: At program point L872-2(line 872) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) (+ 0 8)) 1)) (not (= 0 |list_del_#in~entry.offset|)) (not (= 0 |~#head~0.offset|))) [2018-11-10 06:57:17,711 INFO L425 ceAbstractionStarter]: For program point L872-3(line 872) no Hoare annotation was computed. [2018-11-10 06:57:17,711 INFO L421 ceAbstractionStarter]: At program point L867-2(line 867) the Hoare annotation is: (or (not (= 0 |~#head~0.offset|)) (not (= 0 |list_add_#in~new.offset|)) (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) (+ 0 8)) 0))) [2018-11-10 06:57:17,712 INFO L421 ceAbstractionStarter]: At program point list_addENTRY(lines 866 869) the Hoare annotation is: (let ((.cse0 (+ 0 8))) (or (not (= 0 |~#head~0.offset|)) (not (= 0 |list_add_#in~new.offset|)) (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) .cse0) 0)) (= 0 (select (select |#memory_int| |list_add_#in~new.base|) .cse0)))) [2018-11-10 06:57:17,712 INFO L425 ceAbstractionStarter]: For program point L867-3(line 867) no Hoare annotation was computed. [2018-11-10 06:57:17,712 INFO L425 ceAbstractionStarter]: For program point list_addFINAL(lines 866 869) no Hoare annotation was computed. [2018-11-10 06:57:17,712 INFO L425 ceAbstractionStarter]: For program point list_addEXIT(lines 866 869) no Hoare annotation was computed. [2018-11-10 06:57:17,712 INFO L425 ceAbstractionStarter]: For program point L867(line 867) no Hoare annotation was computed. [2018-11-10 06:57:17,712 INFO L425 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-11-10 06:57:17,712 INFO L425 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2018-11-10 06:57:17,713 INFO L425 ceAbstractionStarter]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2018-11-10 06:57:17,713 INFO L428 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2018-11-10 06:57:17,713 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 06:57:17,713 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= |~#head~0.offset| 0) [2018-11-10 06:57:17,713 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 06:57:17,713 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 06:57:17,713 INFO L425 ceAbstractionStarter]: For program point L881(lines 881 886) no Hoare annotation was computed. [2018-11-10 06:57:17,713 INFO L425 ceAbstractionStarter]: For program point L881-1(lines 881 886) no Hoare annotation was computed. [2018-11-10 06:57:17,713 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 878 888) the Hoare annotation is: true [2018-11-10 06:57:17,714 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 878 888) no Hoare annotation was computed. [2018-11-10 06:57:17,714 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 878 888) no Hoare annotation was computed. [2018-11-10 06:57:17,714 INFO L421 ceAbstractionStarter]: At program point L884(line 884) the Hoare annotation is: (or (not (= 0 |~#head~0.offset|)) (and (= 0 (select (select |#memory_int| main_~dev~0.base) (+ |~#head~0.offset| 8))) (= |~#head~0.offset| main_~dev~0.offset))) [2018-11-10 06:57:17,714 INFO L421 ceAbstractionStarter]: At program point L883(line 883) the Hoare annotation is: (or (and (= 0 (select (select |#memory_int| main_~dev~0.base) (+ |~#head~0.offset| 8))) (= |~#head~0.offset| main_~dev~0.offset)) (not (= 0 |~#head~0.offset|))) [2018-11-10 06:57:17,714 INFO L421 ceAbstractionStarter]: At program point L883-1(line 883) the Hoare annotation is: (or (not (= 0 |~#head~0.offset|)) (and (= 1 (select (select |#memory_int| main_~dev~0.base) (+ 0 8))) (= |~#head~0.offset| main_~dev~0.offset))) [2018-11-10 06:57:17,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:57:17 BoogieIcfgContainer [2018-11-10 06:57:17,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 06:57:17,717 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 06:57:17,717 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 06:57:17,717 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 06:57:17,718 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:57:16" (3/4) ... [2018-11-10 06:57:17,720 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 06:57:17,725 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 06:57:17,725 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure list_del [2018-11-10 06:57:17,725 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2018-11-10 06:57:17,726 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __blast_assert [2018-11-10 06:57:17,726 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 06:57:17,730 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2018-11-10 06:57:17,730 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-11-10 06:57:17,730 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-10 06:57:17,730 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 06:57:17,766 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_031ca0e3-cfe2-4ff6-ab9a-f24a9739f578/bin-2019/utaipan/witness.graphml [2018-11-10 06:57:17,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 06:57:17,767 INFO L168 Benchmark]: Toolchain (without parser) took 2270.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 956.5 MB in the beginning and 941.6 MB in the end (delta: 14.9 MB). Peak memory consumption was 138.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:57:17,768 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:57:17,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.18 ms. Allocated memory is still 1.0 GB. Free memory was 956.5 MB in the beginning and 929.7 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-10 06:57:17,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 929.7 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-11-10 06:57:17,769 INFO L168 Benchmark]: Boogie Preprocessor took 27.09 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. [2018-11-10 06:57:17,770 INFO L168 Benchmark]: RCFGBuilder took 313.50 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:57:17,771 INFO L168 Benchmark]: TraceAbstraction took 1416.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 947.0 MB in the end (delta: 143.3 MB). Peak memory consumption was 143.3 MB. Max. memory is 11.5 GB. [2018-11-10 06:57:17,771 INFO L168 Benchmark]: Witness Printer took 49.86 ms. Allocated memory is still 1.2 GB. Free memory was 947.0 MB in the beginning and 941.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 06:57:17,772 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 367.18 ms. Allocated memory is still 1.0 GB. Free memory was 956.5 MB in the beginning and 929.7 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 91.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 929.7 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.09 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. * RCFGBuilder took 313.50 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1416.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 947.0 MB in the end (delta: 143.3 MB). Peak memory consumption was 143.3 MB. Max. memory is 11.5 GB. * Witness Printer took 49.86 ms. Allocated memory is still 1.2 GB. Free memory was 947.0 MB in the beginning and 941.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 31 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 64 SDslu, 167 SDs, 0 SdLazy, 152 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 21 PreInvPairs, 23 NumberOfFragments, 155 HoareAnnotationTreeSize, 21 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 48 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 5379 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...