./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test01_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6dd6c712-b427-4163-a3fa-6dc896164535/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6dd6c712-b427-4163-a3fa-6dc896164535/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6dd6c712-b427-4163-a3fa-6dc896164535/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6dd6c712-b427-4163-a3fa-6dc896164535/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test01_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6dd6c712-b427-4163-a3fa-6dc896164535/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6dd6c712-b427-4163-a3fa-6dc896164535/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 34eec5be4e53dedb20a9fee588f2a00f3bfc3218 .................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 09:07:40,036 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:07:40,037 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:07:40,045 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:07:40,045 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:07:40,045 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:07:40,046 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:07:40,048 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:07:40,049 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:07:40,049 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:07:40,050 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:07:40,050 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:07:40,051 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:07:40,052 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:07:40,052 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:07:40,052 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:07:40,053 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:07:40,054 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:07:40,055 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:07:40,056 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:07:40,057 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:07:40,057 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:07:40,058 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:07:40,058 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:07:40,059 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:07:40,059 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:07:40,060 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:07:40,060 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:07:40,061 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:07:40,062 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:07:40,062 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:07:40,062 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:07:40,063 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:07:40,063 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:07:40,063 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:07:40,064 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:07:40,064 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6dd6c712-b427-4163-a3fa-6dc896164535/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 09:07:40,072 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:07:40,072 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:07:40,072 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:07:40,073 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 09:07:40,073 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 09:07:40,073 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 09:07:40,073 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 09:07:40,073 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 09:07:40,073 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 09:07:40,073 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 09:07:40,073 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 09:07:40,074 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 09:07:40,074 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 09:07:40,074 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:07:40,074 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:07:40,074 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:07:40,074 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:07:40,075 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:07:40,075 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:07:40,075 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:07:40,075 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:07:40,075 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:07:40,075 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:07:40,075 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:07:40,075 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:07:40,075 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:07:40,076 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:07:40,076 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:07:40,076 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:07:40,076 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:07:40,076 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:07:40,076 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:07:40,076 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:07:40,076 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 09:07:40,076 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:07:40,077 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:07:40,077 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 09:07:40,077 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_6dd6c712-b427-4163-a3fa-6dc896164535/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 -> 34eec5be4e53dedb20a9fee588f2a00f3bfc3218 [2018-11-18 09:07:40,101 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:07:40,111 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:07:40,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:07:40,114 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:07:40,115 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:07:40,115 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6dd6c712-b427-4163-a3fa-6dc896164535/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/test01_true-unreach-call_true-termination.c [2018-11-18 09:07:40,162 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6dd6c712-b427-4163-a3fa-6dc896164535/bin-2019/utaipan/data/fb6771dd1/434263cd61e54194932c037dab4a275a/FLAG9bfc3c1cc [2018-11-18 09:07:40,570 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:07:40,571 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6dd6c712-b427-4163-a3fa-6dc896164535/sv-benchmarks/c/ldv-regression/test01_true-unreach-call_true-termination.c [2018-11-18 09:07:40,575 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6dd6c712-b427-4163-a3fa-6dc896164535/bin-2019/utaipan/data/fb6771dd1/434263cd61e54194932c037dab4a275a/FLAG9bfc3c1cc [2018-11-18 09:07:40,584 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6dd6c712-b427-4163-a3fa-6dc896164535/bin-2019/utaipan/data/fb6771dd1/434263cd61e54194932c037dab4a275a [2018-11-18 09:07:40,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:07:40,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:07:40,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:07:40,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:07:40,592 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:07:40,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:07:40" (1/1) ... [2018-11-18 09:07:40,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4546e68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:40, skipping insertion in model container [2018-11-18 09:07:40,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:07:40" (1/1) ... [2018-11-18 09:07:40,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:07:40,617 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:07:40,730 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:07:40,733 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:07:40,741 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:07:40,752 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:07:40,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:40 WrapperNode [2018-11-18 09:07:40,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:07:40,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:07:40,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:07:40,753 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:07:40,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:40" (1/1) ... [2018-11-18 09:07:40,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:40" (1/1) ... [2018-11-18 09:07:40,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:07:40,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:07:40,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:07:40,768 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:07:40,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:40" (1/1) ... [2018-11-18 09:07:40,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:40" (1/1) ... [2018-11-18 09:07:40,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:40" (1/1) ... [2018-11-18 09:07:40,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:40" (1/1) ... [2018-11-18 09:07:40,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:40" (1/1) ... [2018-11-18 09:07:40,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:40" (1/1) ... [2018-11-18 09:07:40,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:40" (1/1) ... [2018-11-18 09:07:40,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:07:40,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:07:40,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:07:40,780 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:07:40,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6dd6c712-b427-4163-a3fa-6dc896164535/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 [2018-11-18 09:07:40,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:07:40,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:07:40,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:07:40,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:07:40,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:07:40,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:07:40,860 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:07:40,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 09:07:40,958 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:07:40,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:07:40 BoogieIcfgContainer [2018-11-18 09:07:40,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:07:40,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:07:40,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:07:40,961 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:07:40,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:07:40" (1/3) ... [2018-11-18 09:07:40,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e625040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:07:40, skipping insertion in model container [2018-11-18 09:07:40,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:40" (2/3) ... [2018-11-18 09:07:40,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e625040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:07:40, skipping insertion in model container [2018-11-18 09:07:40,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:07:40" (3/3) ... [2018-11-18 09:07:40,963 INFO L112 eAbstractionObserver]: Analyzing ICFG test01_true-unreach-call_true-termination.c [2018-11-18 09:07:40,969 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:07:40,974 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:07:40,985 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:07:41,012 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:07:41,012 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:07:41,012 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:07:41,012 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:07:41,012 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:07:41,012 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:07:41,012 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:07:41,013 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:07:41,025 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-18 09:07:41,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 09:07:41,029 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:07:41,029 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:07:41,031 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:07:41,034 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:07:41,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1160017433, now seen corresponding path program 1 times [2018-11-18 09:07:41,035 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:07:41,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:07:41,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:07:41,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:07:41,072 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:07:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:07:41,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:07:41,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:07:41,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:07:41,154 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:07:41,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:07:41,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:07:41,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:07:41,167 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2018-11-18 09:07:41,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:07:41,180 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2018-11-18 09:07:41,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:07:41,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-18 09:07:41,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:07:41,187 INFO L225 Difference]: With dead ends: 17 [2018-11-18 09:07:41,187 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 09:07:41,190 INFO L604 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 [2018-11-18 09:07:41,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 09:07:41,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 09:07:41,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 09:07:41,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 09:07:41,209 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-11-18 09:07:41,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:07:41,209 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 09:07:41,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:07:41,209 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 09:07:41,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 09:07:41,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 09:07:41,229 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:07:41,229 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 09:07:41,229 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:07:41,229 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:07:41,230 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 09:07:41,230 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 09:07:41,230 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:07:41,230 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 4 17) the Hoare annotation is: true [2018-11-18 09:07:41,230 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 4 17) no Hoare annotation was computed. [2018-11-18 09:07:41,230 INFO L421 ceAbstractionStarter]: At program point L10(lines 4 17) the Hoare annotation is: false [2018-11-18 09:07:41,230 INFO L425 ceAbstractionStarter]: For program point L9(lines 9 11) no Hoare annotation was computed. [2018-11-18 09:07:41,230 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 4 17) no Hoare annotation was computed. [2018-11-18 09:07:41,231 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2018-11-18 09:07:41,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:07:41 BoogieIcfgContainer [2018-11-18 09:07:41,236 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:07:41,236 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:07:41,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:07:41,237 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:07:41,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:07:40" (3/4) ... [2018-11-18 09:07:41,241 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 09:07:41,246 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 09:07:41,246 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 09:07:41,249 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-18 09:07:41,249 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 09:07:41,249 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 09:07:41,249 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 09:07:41,275 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6dd6c712-b427-4163-a3fa-6dc896164535/bin-2019/utaipan/witness.graphml [2018-11-18 09:07:41,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:07:41,276 INFO L168 Benchmark]: Toolchain (without parser) took 689.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:07:41,278 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:07:41,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.70 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:07:41,279 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.96 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:07:41,279 INFO L168 Benchmark]: Boogie Preprocessor took 11.84 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. [2018-11-18 09:07:41,279 INFO L168 Benchmark]: RCFGBuilder took 178.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:07:41,280 INFO L168 Benchmark]: TraceAbstraction took 277.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:07:41,281 INFO L168 Benchmark]: Witness Printer took 39.32 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. [2018-11-18 09:07:41,284 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 163.70 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 14.96 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.84 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. * RCFGBuilder took 178.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 277.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Witness Printer took 39.32 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: 15]: 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: 4]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 2 SDslu, 7 SDs, 0 SdLazy, 1 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=13occurred 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, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 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...