./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test03_true-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_f8b28d76-6ec8-4d67-b66e-51d07da48490/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f8b28d76-6ec8-4d67-b66e-51d07da48490/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f8b28d76-6ec8-4d67-b66e-51d07da48490/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f8b28d76-6ec8-4d67-b66e-51d07da48490/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test03_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f8b28d76-6ec8-4d67-b66e-51d07da48490/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f8b28d76-6ec8-4d67-b66e-51d07da48490/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 096d3328266eb6def3b8e487a1924a44a09934d2 ....................................................................................................................................................................................................................................................................................... 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 04:10:04,454 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:10:04,455 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:10:04,462 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:10:04,463 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:10:04,463 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:10:04,464 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:10:04,465 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:10:04,466 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:10:04,467 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:10:04,468 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:10:04,468 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:10:04,469 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:10:04,469 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:10:04,470 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:10:04,471 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:10:04,471 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:10:04,473 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:10:04,474 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:10:04,475 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:10:04,476 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:10:04,477 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:10:04,479 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:10:04,479 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:10:04,479 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:10:04,480 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:10:04,481 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:10:04,481 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:10:04,482 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:10:04,483 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:10:04,483 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:10:04,483 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:10:04,483 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:10:04,484 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:10:04,484 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:10:04,484 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:10:04,485 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f8b28d76-6ec8-4d67-b66e-51d07da48490/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 04:10:04,495 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:10:04,495 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:10:04,496 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:10:04,496 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 04:10:04,496 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 04:10:04,496 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 04:10:04,496 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 04:10:04,496 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 04:10:04,497 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 04:10:04,497 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 04:10:04,497 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 04:10:04,497 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:10:04,497 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:10:04,498 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:10:04,498 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:10:04,498 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:10:04,498 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:10:04,498 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:10:04,498 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:10:04,498 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:10:04,499 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:10:04,499 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:10:04,499 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:10:04,499 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:10:04,499 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:10:04,499 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:10:04,499 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:10:04,500 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:10:04,500 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:10:04,500 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:10:04,500 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 04:10:04,500 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:10:04,500 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:10:04,500 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 04:10:04,500 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_f8b28d76-6ec8-4d67-b66e-51d07da48490/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 -> 096d3328266eb6def3b8e487a1924a44a09934d2 [2018-11-10 04:10:04,522 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:10:04,530 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:10:04,532 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:10:04,533 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:10:04,533 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:10:04,533 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f8b28d76-6ec8-4d67-b66e-51d07da48490/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/test03_true-unreach-call_true-termination.c [2018-11-10 04:10:04,575 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f8b28d76-6ec8-4d67-b66e-51d07da48490/bin-2019/utaipan/data/0b7897d56/7f31dabf83ba40f18dbab150fd901969/FLAGb5fb4f818 [2018-11-10 04:10:04,973 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:10:04,974 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f8b28d76-6ec8-4d67-b66e-51d07da48490/sv-benchmarks/c/ldv-regression/test03_true-unreach-call_true-termination.c [2018-11-10 04:10:04,978 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f8b28d76-6ec8-4d67-b66e-51d07da48490/bin-2019/utaipan/data/0b7897d56/7f31dabf83ba40f18dbab150fd901969/FLAGb5fb4f818 [2018-11-10 04:10:04,988 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f8b28d76-6ec8-4d67-b66e-51d07da48490/bin-2019/utaipan/data/0b7897d56/7f31dabf83ba40f18dbab150fd901969 [2018-11-10 04:10:04,991 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:10:04,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:10:04,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:10:04,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:10:04,995 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:10:04,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:10:04" (1/1) ... [2018-11-10 04:10:04,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@680a2912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:10:04, skipping insertion in model container [2018-11-10 04:10:04,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:10:04" (1/1) ... [2018-11-10 04:10:05,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:10:05,017 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:10:05,112 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:10:05,114 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:10:05,124 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:10:05,135 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:10:05,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:10:05 WrapperNode [2018-11-10 04:10:05,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:10:05,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:10:05,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:10:05,136 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:10:05,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:10:05" (1/1) ... [2018-11-10 04:10:05,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:10:05" (1/1) ... [2018-11-10 04:10:05,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:10:05,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:10:05,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:10:05,158 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:10:05,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:10:05" (1/1) ... [2018-11-10 04:10:05,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:10:05" (1/1) ... [2018-11-10 04:10:05,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:10:05" (1/1) ... [2018-11-10 04:10:05,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:10:05" (1/1) ... [2018-11-10 04:10:05,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:10:05" (1/1) ... [2018-11-10 04:10:05,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:10:05" (1/1) ... [2018-11-10 04:10:05,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:10:05" (1/1) ... [2018-11-10 04:10:05,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:10:05,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:10:05,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:10:05,172 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:10:05,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:10:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f8b28d76-6ec8-4d67-b66e-51d07da48490/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 04:10:05,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:10:05,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:10:05,260 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-10 04:10:05,260 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-10 04:10:05,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:10:05,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:10:05,260 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:10:05,260 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:10:05,395 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:10:05,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:10:05 BoogieIcfgContainer [2018-11-10 04:10:05,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:10:05,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:10:05,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:10:05,399 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:10:05,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:10:04" (1/3) ... [2018-11-10 04:10:05,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f79b077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:10:05, skipping insertion in model container [2018-11-10 04:10:05,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:10:05" (2/3) ... [2018-11-10 04:10:05,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f79b077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:10:05, skipping insertion in model container [2018-11-10 04:10:05,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:10:05" (3/3) ... [2018-11-10 04:10:05,402 INFO L112 eAbstractionObserver]: Analyzing ICFG test03_true-unreach-call_true-termination.c [2018-11-10 04:10:05,410 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:10:05,416 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 04:10:05,431 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 04:10:05,460 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:10:05,461 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:10:05,461 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:10:05,461 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:10:05,461 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:10:05,461 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:10:05,461 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:10:05,461 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:10:05,476 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-10 04:10:05,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 04:10:05,481 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:10:05,482 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:10:05,484 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:10:05,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:10:05,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1498735640, now seen corresponding path program 1 times [2018-11-10 04:10:05,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:10:05,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:10:05,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:10:05,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:10:05,532 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:10:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:10:05,690 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 04:10:05,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:10:05,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 04:10:05,692 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:10:05,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 04:10:05,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 04:10:05,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 04:10:05,704 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2018-11-10 04:10:05,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:10:05,767 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-11-10 04:10:05,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 04:10:05,770 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-10 04:10:05,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:10:05,774 INFO L225 Difference]: With dead ends: 22 [2018-11-10 04:10:05,774 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 04:10:05,776 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-10 04:10:05,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 04:10:05,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 04:10:05,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 04:10:05,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 04:10:05,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-10 04:10:05,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:10:05,791 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 04:10:05,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 04:10:05,791 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 04:10:05,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 04:10:05,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 04:10:05,841 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 04:10:05,842 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 04:10:05,842 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:10:05,842 INFO L425 ceAbstractionStarter]: For program point fEXIT(lines 4 6) no Hoare annotation was computed. [2018-11-10 04:10:05,842 INFO L428 ceAbstractionStarter]: At program point fENTRY(lines 4 6) the Hoare annotation is: true [2018-11-10 04:10:05,842 INFO L425 ceAbstractionStarter]: For program point fFINAL(lines 4 6) no Hoare annotation was computed. [2018-11-10 04:10:05,842 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:10:05,843 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 04:10:05,843 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 04:10:05,843 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 04:10:05,843 INFO L425 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-11-10 04:10:05,843 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 28) the Hoare annotation is: true [2018-11-10 04:10:05,843 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 28) no Hoare annotation was computed. [2018-11-10 04:10:05,843 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 28) no Hoare annotation was computed. [2018-11-10 04:10:05,843 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2018-11-10 04:10:05,843 INFO L421 ceAbstractionStarter]: At program point L21(lines 10 28) the Hoare annotation is: false [2018-11-10 04:10:05,844 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 22) no Hoare annotation was computed. [2018-11-10 04:10:05,844 INFO L421 ceAbstractionStarter]: At program point L18(line 18) the Hoare annotation is: (and (= main_~p1~0.offset main_~p2~0.offset) (not (= main_~p1~0.base main_~p2~0.base))) [2018-11-10 04:10:05,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 04:10:05 BoogieIcfgContainer [2018-11-10 04:10:05,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 04:10:05,848 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:10:05,849 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:10:05,849 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:10:05,849 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:10:05" (3/4) ... [2018-11-10 04:10:05,852 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 04:10:05,856 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 04:10:05,856 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2018-11-10 04:10:05,857 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 04:10:05,860 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2018-11-10 04:10:05,860 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-11-10 04:10:05,861 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-10 04:10:05,861 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 04:10:05,891 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f8b28d76-6ec8-4d67-b66e-51d07da48490/bin-2019/utaipan/witness.graphml [2018-11-10 04:10:05,892 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:10:05,892 INFO L168 Benchmark]: Toolchain (without parser) took 900.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -125.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2018-11-10 04:10:05,894 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:10:05,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.26 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 04:10:05,894 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.83 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:10:05,894 INFO L168 Benchmark]: Boogie Preprocessor took 13.26 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:10:05,895 INFO L168 Benchmark]: RCFGBuilder took 223.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:10:05,895 INFO L168 Benchmark]: TraceAbstraction took 452.30 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: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2018-11-10 04:10:05,895 INFO L168 Benchmark]: Witness Printer took 43.25 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-10 04:10:05,898 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 143.26 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.83 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.26 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 223.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 452.30 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: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * Witness Printer took 43.25 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: 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 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 1 SDslu, 43 SDs, 0 SdLazy, 11 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 14 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 612 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...