./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test_overflow_true-termination.c_true-unreach-call.i --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_76bcc560-87cc-4993-8df5-ee9ab3c6c216/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_76bcc560-87cc-4993-8df5-ee9ab3c6c216/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_76bcc560-87cc-4993-8df5-ee9ab3c6c216/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_76bcc560-87cc-4993-8df5-ee9ab3c6c216/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_overflow_true-termination.c_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_76bcc560-87cc-4993-8df5-ee9ab3c6c216/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_76bcc560-87cc-4993-8df5-ee9ab3c6c216/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 c8f9d6dff962c1f511785f72ad5dc5ece1495e04 ................................................................................................................................................................................................................................................................................................ 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 15:51:14,892 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:51:14,894 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:51:14,902 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:51:14,902 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:51:14,903 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:51:14,904 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:51:14,905 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:51:14,906 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:51:14,907 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:51:14,907 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:51:14,907 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:51:14,908 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:51:14,909 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:51:14,910 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:51:14,911 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:51:14,912 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:51:14,913 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:51:14,915 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:51:14,916 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:51:14,916 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:51:14,917 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:51:14,919 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:51:14,919 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:51:14,920 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:51:14,920 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:51:14,921 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:51:14,922 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:51:14,923 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:51:14,923 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:51:14,924 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:51:14,924 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:51:14,924 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:51:14,924 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:51:14,925 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:51:14,926 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:51:14,927 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_76bcc560-87cc-4993-8df5-ee9ab3c6c216/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 15:51:14,943 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:51:14,945 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:51:14,946 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:51:14,946 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:51:14,946 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:51:14,947 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:51:14,947 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:51:14,947 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:51:14,947 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:51:14,947 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:51:14,947 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:51:14,947 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:51:14,948 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:51:14,948 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:51:14,948 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:51:14,948 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:51:14,948 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:51:14,949 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:51:14,949 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:51:14,949 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:51:14,949 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:51:14,949 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:51:14,949 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:51:14,949 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:51:14,952 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:51:14,952 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:51:14,952 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:51:14,952 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:51:14,953 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:51:14,953 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:51:14,953 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:51:14,953 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:51:14,953 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:51:14,955 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:51:14,955 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:51:14,955 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:51:14,955 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:51:14,955 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_76bcc560-87cc-4993-8df5-ee9ab3c6c216/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 -> c8f9d6dff962c1f511785f72ad5dc5ece1495e04 [2018-11-18 15:51:14,984 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:51:15,001 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:51:15,005 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:51:15,006 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:51:15,006 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:51:15,007 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_76bcc560-87cc-4993-8df5-ee9ab3c6c216/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/test_overflow_true-termination.c_true-unreach-call.i [2018-11-18 15:51:15,053 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_76bcc560-87cc-4993-8df5-ee9ab3c6c216/bin-2019/utaipan/data/3bddf933c/451ea40b01af4359a8c8e37dd85bff93/FLAGe190664f4 [2018-11-18 15:51:15,458 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:51:15,458 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_76bcc560-87cc-4993-8df5-ee9ab3c6c216/sv-benchmarks/c/ldv-regression/test_overflow_true-termination.c_true-unreach-call.i [2018-11-18 15:51:15,470 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_76bcc560-87cc-4993-8df5-ee9ab3c6c216/bin-2019/utaipan/data/3bddf933c/451ea40b01af4359a8c8e37dd85bff93/FLAGe190664f4 [2018-11-18 15:51:15,813 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_76bcc560-87cc-4993-8df5-ee9ab3c6c216/bin-2019/utaipan/data/3bddf933c/451ea40b01af4359a8c8e37dd85bff93 [2018-11-18 15:51:15,815 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:51:15,816 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:51:15,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:15,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:51:15,819 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:51:15,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:15" (1/1) ... [2018-11-18 15:51:15,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3af4c8c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:15, skipping insertion in model container [2018-11-18 15:51:15,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:15" (1/1) ... [2018-11-18 15:51:15,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:51:15,866 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:51:16,125 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:16,129 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:51:16,161 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:16,234 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:51:16,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:16 WrapperNode [2018-11-18 15:51:16,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:16,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:51:16,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:51:16,235 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:51:16,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:16" (1/1) ... [2018-11-18 15:51:16,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:16" (1/1) ... [2018-11-18 15:51:16,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:51:16,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:51:16,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:51:16,317 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:51:16,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:16" (1/1) ... [2018-11-18 15:51:16,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:16" (1/1) ... [2018-11-18 15:51:16,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:16" (1/1) ... [2018-11-18 15:51:16,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:16" (1/1) ... [2018-11-18 15:51:16,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:16" (1/1) ... [2018-11-18 15:51:16,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:16" (1/1) ... [2018-11-18 15:51:16,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:16" (1/1) ... [2018-11-18 15:51:16,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:51:16,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:51:16,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:51:16,337 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:51:16,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76bcc560-87cc-4993-8df5-ee9ab3c6c216/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 15:51:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure getService [2018-11-18 15:51:16,406 INFO L138 BoogieDeclarations]: Found implementation of procedure getService [2018-11-18 15:51:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:51:16,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:51:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:51:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:51:16,407 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:51:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-18 15:51:16,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-18 15:51:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:51:16,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:51:16,564 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:51:16,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:16 BoogieIcfgContainer [2018-11-18 15:51:16,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:51:16,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:51:16,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:51:16,567 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:51:16,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:51:15" (1/3) ... [2018-11-18 15:51:16,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e0d406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:51:16, skipping insertion in model container [2018-11-18 15:51:16,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:16" (2/3) ... [2018-11-18 15:51:16,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e0d406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:51:16, skipping insertion in model container [2018-11-18 15:51:16,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:16" (3/3) ... [2018-11-18 15:51:16,570 INFO L112 eAbstractionObserver]: Analyzing ICFG test_overflow_true-termination.c_true-unreach-call.i [2018-11-18 15:51:16,578 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:51:16,583 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:51:16,595 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:51:16,618 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:51:16,619 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:51:16,619 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:51:16,619 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:51:16,619 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:51:16,619 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:51:16,619 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:51:16,620 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:51:16,633 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-18 15:51:16,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 15:51:16,639 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:16,640 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:16,641 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:16,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:16,647 INFO L82 PathProgramCache]: Analyzing trace with hash -2006926244, now seen corresponding path program 1 times [2018-11-18 15:51:16,648 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:51:16,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:16,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:16,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:16,694 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:51:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:16,786 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 15:51:16,788 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:16,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:51:16,788 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:51:16,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:51:16,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:51:16,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:51:16,801 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2018-11-18 15:51:16,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:16,822 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-11-18 15:51:16,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:51:16,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-11-18 15:51:16,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:16,829 INFO L225 Difference]: With dead ends: 27 [2018-11-18 15:51:16,829 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:51:16,832 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 15:51:16,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:51:16,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:51:16,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:51:16,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:51:16,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-18 15:51:16,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:16,853 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:51:16,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:51:16,853 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:51:16,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:51:16,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:51:16,898 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:51:16,898 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:51:16,898 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:51:16,898 INFO L425 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1605) no Hoare annotation was computed. [2018-11-18 15:51:16,898 INFO L425 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 1603 1606) no Hoare annotation was computed. [2018-11-18 15:51:16,898 INFO L425 ceAbstractionStarter]: For program point __blast_assertFINAL(lines 1603 1606) no Hoare annotation was computed. [2018-11-18 15:51:16,899 INFO L428 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 1603 1606) the Hoare annotation is: true [2018-11-18 15:51:16,899 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:51:16,899 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 15:51:16,899 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:51:16,899 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:51:16,899 INFO L428 ceAbstractionStarter]: At program point L1617(line 1617) the Hoare annotation is: true [2018-11-18 15:51:16,899 INFO L425 ceAbstractionStarter]: For program point L1617-1(line 1617) no Hoare annotation was computed. [2018-11-18 15:51:16,899 INFO L421 ceAbstractionStarter]: At program point L1618-2(line 1618) the Hoare annotation is: false [2018-11-18 15:51:16,899 INFO L425 ceAbstractionStarter]: For program point L1618-3(line 1618) no Hoare annotation was computed. [2018-11-18 15:51:16,900 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 1614 1621) the Hoare annotation is: true [2018-11-18 15:51:16,900 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 1614 1621) no Hoare annotation was computed. [2018-11-18 15:51:16,900 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 1614 1621) no Hoare annotation was computed. [2018-11-18 15:51:16,900 INFO L425 ceAbstractionStarter]: For program point L1618(line 1618) no Hoare annotation was computed. [2018-11-18 15:51:16,900 INFO L425 ceAbstractionStarter]: For program point getServiceEXIT(lines 1624 1629) no Hoare annotation was computed. [2018-11-18 15:51:16,900 INFO L428 ceAbstractionStarter]: At program point getServiceENTRY(lines 1624 1629) the Hoare annotation is: true [2018-11-18 15:51:16,900 INFO L425 ceAbstractionStarter]: For program point getServiceFINAL(lines 1624 1629) no Hoare annotation was computed. [2018-11-18 15:51:16,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:51:16 BoogieIcfgContainer [2018-11-18 15:51:16,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:51:16,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:51:16,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:51:16,907 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:51:16,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:16" (3/4) ... [2018-11-18 15:51:16,911 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:51:16,919 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:51:16,919 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __blast_assert [2018-11-18 15:51:16,919 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:51:16,920 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getService [2018-11-18 15:51:16,923 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 15:51:16,923 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 15:51:16,923 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 15:51:16,954 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_76bcc560-87cc-4993-8df5-ee9ab3c6c216/bin-2019/utaipan/witness.graphml [2018-11-18 15:51:16,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:51:16,955 INFO L168 Benchmark]: Toolchain (without parser) took 1139.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -119.1 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:16,956 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:51:16,956 INFO L168 Benchmark]: CACSL2BoogieTranslator took 417.96 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 908.1 MB in the end (delta: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:16,957 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 908.1 MB in the beginning and 1.1 GB in the end (delta: -222.7 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:16,957 INFO L168 Benchmark]: Boogie Preprocessor took 19.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:51:16,958 INFO L168 Benchmark]: RCFGBuilder took 227.20 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: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:16,958 INFO L168 Benchmark]: TraceAbstraction took 342.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:16,959 INFO L168 Benchmark]: Witness Printer took 47.07 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:16,961 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 417.96 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 908.1 MB in the end (delta: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 81.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 908.1 MB in the beginning and 1.1 GB in the end (delta: -222.7 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 227.20 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: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 342.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Witness Printer took 47.07 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1605]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 5 SDslu, 6 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 8 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 273 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...