./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/nested_structure_noptr_true-termination.c_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4e909d90-75a7-4e96-86b3-0bc6586e4db4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4e909d90-75a7-4e96-86b3-0bc6586e4db4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4e909d90-75a7-4e96-86b3-0bc6586e4db4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4e909d90-75a7-4e96-86b3-0bc6586e4db4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/nested_structure_noptr_true-termination.c_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4e909d90-75a7-4e96-86b3-0bc6586e4db4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4e909d90-75a7-4e96-86b3-0bc6586e4db4/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 8c7b24414389aa07a8997cd2327b2d6d9b2f9eb1 ....................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 02:58:46,025 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 02:58:46,027 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 02:58:46,035 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 02:58:46,035 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 02:58:46,036 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 02:58:46,036 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 02:58:46,038 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 02:58:46,039 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 02:58:46,039 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 02:58:46,040 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 02:58:46,040 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 02:58:46,041 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 02:58:46,042 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 02:58:46,042 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 02:58:46,043 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 02:58:46,044 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 02:58:46,045 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 02:58:46,046 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 02:58:46,047 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 02:58:46,048 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 02:58:46,049 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 02:58:46,050 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 02:58:46,050 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 02:58:46,050 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 02:58:46,051 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 02:58:46,051 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 02:58:46,051 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 02:58:46,052 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 02:58:46,052 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 02:58:46,052 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 02:58:46,053 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 02:58:46,053 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 02:58:46,053 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 02:58:46,054 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 02:58:46,054 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 02:58:46,054 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4e909d90-75a7-4e96-86b3-0bc6586e4db4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 02:58:46,062 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 02:58:46,062 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 02:58:46,062 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 02:58:46,063 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 02:58:46,063 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 02:58:46,063 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 02:58:46,063 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 02:58:46,063 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 02:58:46,063 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 02:58:46,063 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 02:58:46,063 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 02:58:46,063 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 02:58:46,063 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 02:58:46,064 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 02:58:46,064 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 02:58:46,064 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 02:58:46,064 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 02:58:46,064 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 02:58:46,064 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 02:58:46,064 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 02:58:46,065 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 02:58:46,065 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 02:58:46,065 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 02:58:46,065 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 02:58:46,065 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 02:58:46,065 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 02:58:46,065 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 02:58:46,066 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 02:58:46,066 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 02:58:46,066 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 02:58:46,066 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 02:58:46,066 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 02:58:46,066 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 02:58:46,066 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 02:58:46,066 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 02:58:46,067 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 02:58:46,067 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_4e909d90-75a7-4e96-86b3-0bc6586e4db4/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 -> 8c7b24414389aa07a8997cd2327b2d6d9b2f9eb1 [2018-12-03 02:58:46,091 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 02:58:46,099 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 02:58:46,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 02:58:46,103 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 02:58:46,103 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 02:58:46,104 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4e909d90-75a7-4e96-86b3-0bc6586e4db4/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/nested_structure_noptr_true-termination.c_true-unreach-call.i [2018-12-03 02:58:46,144 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4e909d90-75a7-4e96-86b3-0bc6586e4db4/bin-2019/utaipan/data/000752a66/a7a17bd8a0fb43dfba776ab9145072ba/FLAG4cb6f20b6 [2018-12-03 02:58:46,486 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 02:58:46,486 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4e909d90-75a7-4e96-86b3-0bc6586e4db4/sv-benchmarks/c/ldv-regression/nested_structure_noptr_true-termination.c_true-unreach-call.i [2018-12-03 02:58:46,489 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4e909d90-75a7-4e96-86b3-0bc6586e4db4/bin-2019/utaipan/data/000752a66/a7a17bd8a0fb43dfba776ab9145072ba/FLAG4cb6f20b6 [2018-12-03 02:58:46,875 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4e909d90-75a7-4e96-86b3-0bc6586e4db4/bin-2019/utaipan/data/000752a66/a7a17bd8a0fb43dfba776ab9145072ba [2018-12-03 02:58:46,877 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 02:58:46,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 02:58:46,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 02:58:46,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 02:58:46,882 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 02:58:46,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:58:46" (1/1) ... [2018-12-03 02:58:46,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f79c046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:58:46, skipping insertion in model container [2018-12-03 02:58:46,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:58:46" (1/1) ... [2018-12-03 02:58:46,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 02:58:46,900 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 02:58:46,989 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 02:58:46,991 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 02:58:47,002 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 02:58:47,014 INFO L195 MainTranslator]: Completed translation [2018-12-03 02:58:47,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:58:47 WrapperNode [2018-12-03 02:58:47,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 02:58:47,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 02:58:47,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 02:58:47,015 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 02:58:47,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:58:47" (1/1) ... [2018-12-03 02:58:47,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:58:47" (1/1) ... [2018-12-03 02:58:47,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 02:58:47,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 02:58:47,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 02:58:47,028 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 02:58:47,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:58:47" (1/1) ... [2018-12-03 02:58:47,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:58:47" (1/1) ... [2018-12-03 02:58:47,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:58:47" (1/1) ... [2018-12-03 02:58:47,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:58:47" (1/1) ... [2018-12-03 02:58:47,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:58:47" (1/1) ... [2018-12-03 02:58:47,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:58:47" (1/1) ... [2018-12-03 02:58:47,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:58:47" (1/1) ... [2018-12-03 02:58:47,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 02:58:47,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 02:58:47,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 02:58:47,040 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 02:58:47,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:58:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4e909d90-75a7-4e96-86b3-0bc6586e4db4/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 [2018-12-03 02:58:47,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-03 02:58:47,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 02:58:47,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 02:58:47,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 02:58:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-12-03 02:58:47,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-12-03 02:58:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 02:58:47,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 02:58:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-03 02:58:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-03 02:58:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 02:58:47,100 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 02:58:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 02:58:47,186 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 02:58:47,186 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-03 02:58:47,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:58:47 BoogieIcfgContainer [2018-12-03 02:58:47,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 02:58:47,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 02:58:47,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 02:58:47,189 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 02:58:47,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 02:58:46" (1/3) ... [2018-12-03 02:58:47,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f855b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 02:58:47, skipping insertion in model container [2018-12-03 02:58:47,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:58:47" (2/3) ... [2018-12-03 02:58:47,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f855b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 02:58:47, skipping insertion in model container [2018-12-03 02:58:47,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:58:47" (3/3) ... [2018-12-03 02:58:47,191 INFO L112 eAbstractionObserver]: Analyzing ICFG nested_structure_noptr_true-termination.c_true-unreach-call.i [2018-12-03 02:58:47,197 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 02:58:47,201 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 02:58:47,212 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 02:58:47,230 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 02:58:47,230 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 02:58:47,230 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 02:58:47,230 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 02:58:47,230 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 02:58:47,230 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 02:58:47,230 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 02:58:47,230 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 02:58:47,240 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-12-03 02:58:47,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-03 02:58:47,244 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:58:47,244 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:58:47,245 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:58:47,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:58:47,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1215743292, now seen corresponding path program 1 times [2018-12-03 02:58:47,250 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:58:47,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:58:47,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:58:47,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:58:47,279 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:58:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:58:47,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:58:47,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 02:58:47,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 02:58:47,341 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 02:58:47,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 02:58:47,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 02:58:47,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 02:58:47,352 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2018-12-03 02:58:47,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:58:47,366 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-12-03 02:58:47,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 02:58:47,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-03 02:58:47,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:58:47,371 INFO L225 Difference]: With dead ends: 22 [2018-12-03 02:58:47,371 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 02:58:47,373 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 02:58:47,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 02:58:47,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 02:58:47,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 02:58:47,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 02:58:47,389 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-12-03 02:58:47,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:58:47,389 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 02:58:47,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 02:58:47,389 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 02:58:47,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 02:58:47,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 02:58:47,405 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 02:58:47,405 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-03 02:58:47,405 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 02:58:47,405 INFO L448 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 8 11) no Hoare annotation was computed. [2018-12-03 02:58:47,405 INFO L448 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-12-03 02:58:47,405 INFO L448 ceAbstractionStarter]: For program point __blast_assertFINAL(lines 8 11) no Hoare annotation was computed. [2018-12-03 02:58:47,405 INFO L451 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 8 11) the Hoare annotation is: true [2018-12-03 02:58:47,406 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 02:58:47,406 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-03 02:58:47,406 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 02:58:47,406 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 02:58:47,406 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 25 31) the Hoare annotation is: true [2018-12-03 02:58:47,406 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-12-03 02:58:47,406 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 25 31) no Hoare annotation was computed. [2018-12-03 02:58:47,406 INFO L444 ceAbstractionStarter]: At program point L29-2(line 29) the Hoare annotation is: false [2018-12-03 02:58:47,406 INFO L448 ceAbstractionStarter]: For program point L29-3(line 29) no Hoare annotation was computed. [2018-12-03 02:58:47,406 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 25 31) no Hoare annotation was computed. [2018-12-03 02:58:47,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 02:58:47 BoogieIcfgContainer [2018-12-03 02:58:47,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 02:58:47,408 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 02:58:47,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 02:58:47,408 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 02:58:47,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:58:47" (3/4) ... [2018-12-03 02:58:47,411 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 02:58:47,415 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 02:58:47,415 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __blast_assert [2018-12-03 02:58:47,415 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 02:58:47,417 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-03 02:58:47,417 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-03 02:58:47,418 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 02:58:47,418 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 02:58:47,442 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4e909d90-75a7-4e96-86b3-0bc6586e4db4/bin-2019/utaipan/witness.graphml [2018-12-03 02:58:47,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 02:58:47,442 INFO L168 Benchmark]: Toolchain (without parser) took 564.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 949.7 MB in the beginning and 1.0 GB in the end (delta: -88.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 02:58:47,443 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 02:58:47,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.44 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 938.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-03 02:58:47,444 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.28 ms. Allocated memory is still 1.0 GB. Free memory is still 938.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 02:58:47,444 INFO L168 Benchmark]: Boogie Preprocessor took 11.82 ms. Allocated memory is still 1.0 GB. Free memory was 938.9 MB in the beginning and 936.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-03 02:58:47,445 INFO L168 Benchmark]: RCFGBuilder took 147.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -131.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-03 02:58:47,445 INFO L168 Benchmark]: TraceAbstraction took 220.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2018-12-03 02:58:47,446 INFO L168 Benchmark]: Witness Printer took 33.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-03 02:58:47,449 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.44 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 938.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.28 ms. Allocated memory is still 1.0 GB. Free memory is still 938.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.82 ms. Allocated memory is still 1.0 GB. Free memory was 938.9 MB in the beginning and 936.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 147.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -131.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 220.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Witness Printer took 33.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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 4 procedures, 17 locations, 1 error locations. SAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 1 SDslu, 8 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...