./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test21_false-unreach-call_true-termination.c --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_5f16ea6a-fd33-46eb-977e-78264beabf48/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5f16ea6a-fd33-46eb-977e-78264beabf48/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5f16ea6a-fd33-46eb-977e-78264beabf48/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5f16ea6a-fd33-46eb-977e-78264beabf48/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test21_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5f16ea6a-fd33-46eb-977e-78264beabf48/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5f16ea6a-fd33-46eb-977e-78264beabf48/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 36029c97ff36b924dec4fff6e18b89b3177e9048 ................................................................................................................................................................................................................................................................................................................ 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 0.1.23-1dbac8b [2018-11-10 05:57:09,863 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:57:09,865 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:57:09,875 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:57:09,875 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:57:09,876 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:57:09,877 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:57:09,879 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:57:09,881 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:57:09,881 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:57:09,882 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:57:09,883 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:57:09,883 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:57:09,884 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:57:09,885 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:57:09,886 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:57:09,887 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:57:09,889 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:57:09,891 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:57:09,892 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:57:09,893 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:57:09,894 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:57:09,896 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:57:09,897 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:57:09,897 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:57:09,898 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:57:09,899 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:57:09,899 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:57:09,900 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:57:09,901 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:57:09,901 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:57:09,902 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:57:09,902 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:57:09,902 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:57:09,903 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:57:09,904 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:57:09,904 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5f16ea6a-fd33-46eb-977e-78264beabf48/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 05:57:09,917 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:57:09,917 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:57:09,918 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:57:09,918 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 05:57:09,918 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 05:57:09,919 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 05:57:09,919 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 05:57:09,919 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 05:57:09,919 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 05:57:09,919 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 05:57:09,919 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 05:57:09,920 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:57:09,920 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:57:09,921 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:57:09,921 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:57:09,921 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:57:09,921 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:57:09,921 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:57:09,921 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:57:09,922 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:57:09,922 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:57:09,922 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:57:09,922 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:57:09,922 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:57:09,922 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:57:09,923 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:57:09,923 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:57:09,923 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:57:09,923 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:57:09,923 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:57:09,924 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 05:57:09,924 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:57:09,924 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:57:09,924 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 05:57:09,924 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_5f16ea6a-fd33-46eb-977e-78264beabf48/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 -> 36029c97ff36b924dec4fff6e18b89b3177e9048 [2018-11-10 05:57:09,953 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:57:09,965 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:57:09,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:57:09,970 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:57:09,971 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:57:09,971 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5f16ea6a-fd33-46eb-977e-78264beabf48/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/test21_false-unreach-call_true-termination.c [2018-11-10 05:57:10,025 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5f16ea6a-fd33-46eb-977e-78264beabf48/bin-2019/utaipan/data/840524225/8973c802e729458188c1a1bc6a788477/FLAGfda715f63 [2018-11-10 05:57:10,400 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:57:10,401 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5f16ea6a-fd33-46eb-977e-78264beabf48/sv-benchmarks/c/ldv-regression/test21_false-unreach-call_true-termination.c [2018-11-10 05:57:10,407 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5f16ea6a-fd33-46eb-977e-78264beabf48/bin-2019/utaipan/data/840524225/8973c802e729458188c1a1bc6a788477/FLAGfda715f63 [2018-11-10 05:57:10,419 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5f16ea6a-fd33-46eb-977e-78264beabf48/bin-2019/utaipan/data/840524225/8973c802e729458188c1a1bc6a788477 [2018-11-10 05:57:10,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:57:10,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:57:10,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:57:10,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:57:10,426 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:57:10,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:57:10" (1/1) ... [2018-11-10 05:57:10,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@549999d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:57:10, skipping insertion in model container [2018-11-10 05:57:10,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:57:10" (1/1) ... [2018-11-10 05:57:10,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:57:10,454 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:57:10,589 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:57:10,598 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:57:10,613 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:57:10,629 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:57:10,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:57:10 WrapperNode [2018-11-10 05:57:10,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:57:10,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:57:10,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:57:10,630 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:57:10,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:57:10" (1/1) ... [2018-11-10 05:57:10,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:57:10" (1/1) ... [2018-11-10 05:57:10,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:57:10,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:57:10,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:57:10,676 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:57:10,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:57:10" (1/1) ... [2018-11-10 05:57:10,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:57:10" (1/1) ... [2018-11-10 05:57:10,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:57:10" (1/1) ... [2018-11-10 05:57:10,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:57:10" (1/1) ... [2018-11-10 05:57:10,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:57:10" (1/1) ... [2018-11-10 05:57:10,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:57:10" (1/1) ... [2018-11-10 05:57:10,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:57:10" (1/1) ... [2018-11-10 05:57:10,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:57:10,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:57:10,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:57:10,705 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:57:10,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:57:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5f16ea6a-fd33-46eb-977e-78264beabf48/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 05:57:10,828 INFO L130 BoogieDeclarations]: Found specification of procedure init [2018-11-10 05:57:10,828 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2018-11-10 05:57:10,828 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:57:10,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:57:10,828 INFO L130 BoogieDeclarations]: Found specification of procedure check [2018-11-10 05:57:10,829 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2018-11-10 05:57:10,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:57:10,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:57:10,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:57:10,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:57:10,829 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2018-11-10 05:57:10,830 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2018-11-10 05:57:11,106 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:57:11,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:57:11 BoogieIcfgContainer [2018-11-10 05:57:11,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:57:11,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:57:11,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:57:11,111 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:57:11,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:57:10" (1/3) ... [2018-11-10 05:57:11,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679f143f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:57:11, skipping insertion in model container [2018-11-10 05:57:11,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:57:10" (2/3) ... [2018-11-10 05:57:11,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679f143f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:57:11, skipping insertion in model container [2018-11-10 05:57:11,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:57:11" (3/3) ... [2018-11-10 05:57:11,116 INFO L112 eAbstractionObserver]: Analyzing ICFG test21_false-unreach-call_true-termination.c [2018-11-10 05:57:11,124 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:57:11,130 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 05:57:11,143 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 05:57:11,175 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:57:11,176 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:57:11,176 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:57:11,176 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:57:11,176 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:57:11,176 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:57:11,176 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:57:11,177 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:57:11,191 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-11-10 05:57:11,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-10 05:57:11,196 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:57:11,197 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 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 05:57:11,199 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:57:11,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:57:11,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1416783409, now seen corresponding path program 1 times [2018-11-10 05:57:11,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:57:11,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:57:11,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:57:11,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:57:11,245 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:57:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:57:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:57:11,399 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 05:57:11,413 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:57:11,414 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:57:11,415 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:57:11,416 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:57:11,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:57:11 BoogieIcfgContainer [2018-11-10 05:57:11,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:57:11,435 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:57:11,435 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:57:11,435 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:57:11,436 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:57:11" (3/4) ... [2018-11-10 05:57:11,438 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 05:57:11,439 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:57:11,440 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:57:11,440 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:57:11,440 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:57:11,486 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5f16ea6a-fd33-46eb-977e-78264beabf48/bin-2019/utaipan/witness.graphml [2018-11-10 05:57:11,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:57:11,487 INFO L168 Benchmark]: Toolchain (without parser) took 1065.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-11-10 05:57:11,489 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:57:11,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.58 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:57:11,490 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.41 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:57:11,490 INFO L168 Benchmark]: Boogie Preprocessor took 27.93 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:57:11,490 INFO L168 Benchmark]: RCFGBuilder took 403.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-11-10 05:57:11,491 INFO L168 Benchmark]: TraceAbstraction took 326.95 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:57:11,491 INFO L168 Benchmark]: Witness Printer took 50.92 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. [2018-11-10 05:57:11,494 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 206.58 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.41 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.93 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 403.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 326.95 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 50.92 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. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 42]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] CALL struct dummy d1, d2; [L9] RET struct dummy d1, d2; [L9] RET struct dummy d1, d2; [L9] RET struct dummy d1, d2; [L9] RET struct dummy d1, d2; [L9] RET struct dummy d1, d2; [L9] RET struct dummy d1, d2; [L32] CALL init() VAL [d1={12:0}, d2={10:0}] [L13] CALL d1.a = __VERIFIER_nondet_int() [L13] RET d1.a = __VERIFIER_nondet_int() [L14] CALL d1.b = __VERIFIER_nondet_int() [L14] RET d1.b = __VERIFIER_nondet_int() [L16] CALL d2.a = __VERIFIER_nondet_int() [L16] RET d2.a = __VERIFIER_nondet_int() [L17] CALL d2.b = __VERIFIER_nondet_int() [L17] RET d2.b = __VERIFIER_nondet_int() [L32] init() VAL [d1={12:0}, d2={10:0}] [L33] CALL, EXPR get_dummy() VAL [d1={12:0}, d2={10:0}] [L22] COND TRUE, EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=1, __VERIFIER_nondet_bool() ? &d1 : &d2={12:0}, d1={12:0}, d2={10:0}] [L22] RET return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] EXPR get_dummy() VAL [d1={12:0}, d2={10:0}, get_dummy()={12:0}] [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L33] CALL, EXPR get_dummy() VAL [d1={12:0}, d2={10:0}] [L22] COND TRUE, EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=1, __VERIFIER_nondet_bool() ? &d1 : &d2={12:0}, d1={12:0}, d2={10:0}] [L22] RET return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] EXPR get_dummy() VAL [d1={12:0}, d2={10:0}, get_dummy()={12:0}, pd1={12:0}] [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L34] COND TRUE pd1 != 0 && pd1 == pd2 VAL [d1={12:0}, d2={10:0}, pd1={12:0}, pd2={12:0}] [L35] CALL, EXPR check(pd1, pd2) VAL [d1={12:0}, d2={10:0}] [L27] CALL, EXPR s1->a [L27] RET, EXPR s1->a [L27] CALL, EXPR s2->b [L27] RET, EXPR s2->b [L27] RET return s1->a == s2->b; [L35] EXPR check(pd1, pd2) VAL [check(pd1, pd2)=0, d1={12:0}, d2={10:0}, pd1={12:0}, pd2={12:0}] [L35] COND TRUE !check(pd1, pd2) [L42] __VERIFIER_error() VAL [d1={12:0}, d2={10:0}, pd1={12:0}, pd2={12:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 31 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...