./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/hhk2008_true-unreach-call_true-termination.c.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8e216444-c88f-412d-856e-052a3c5c6e33/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8e216444-c88f-412d-856e-052a3c5c6e33/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8e216444-c88f-412d-856e-052a3c5c6e33/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8e216444-c88f-412d-856e-052a3c5c6e33/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/hhk2008_true-unreach-call_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8e216444-c88f-412d-856e-052a3c5c6e33/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8e216444-c88f-412d-856e-052a3c5c6e33/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 ec3b2971b2acb4642d882078251a0cbf2b9f01e8 .................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 12:41:24,188 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:41:24,189 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:41:24,195 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:41:24,195 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:41:24,196 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:41:24,197 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:41:24,197 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:41:24,198 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:41:24,199 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:41:24,199 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:41:24,200 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:41:24,200 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:41:24,201 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:41:24,202 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:41:24,202 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:41:24,203 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:41:24,204 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:41:24,205 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:41:24,206 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:41:24,207 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:41:24,208 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:41:24,209 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:41:24,210 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:41:24,210 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:41:24,210 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:41:24,211 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:41:24,212 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:41:24,212 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:41:24,213 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:41:24,213 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:41:24,213 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:41:24,214 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:41:24,214 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:41:24,214 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:41:24,215 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:41:24,215 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8e216444-c88f-412d-856e-052a3c5c6e33/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 12:41:24,225 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:41:24,226 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:41:24,226 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:41:24,226 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 12:41:24,226 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 12:41:24,226 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 12:41:24,226 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 12:41:24,226 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 12:41:24,227 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 12:41:24,227 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 12:41:24,227 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 12:41:24,227 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 12:41:24,227 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 12:41:24,227 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:41:24,227 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 12:41:24,228 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:41:24,228 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 12:41:24,228 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:41:24,228 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:41:24,228 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:41:24,228 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:41:24,228 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 12:41:24,229 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:41:24,229 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:41:24,229 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:41:24,229 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:41:24,229 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:41:24,229 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:41:24,229 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 12:41:24,229 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:41:24,229 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:41:24,230 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:41:24,230 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:41:24,230 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 12:41:24,230 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:41:24,230 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 12:41:24,230 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 12:41:24,230 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_8e216444-c88f-412d-856e-052a3c5c6e33/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 -> ec3b2971b2acb4642d882078251a0cbf2b9f01e8 [2018-11-23 12:41:24,252 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:41:24,261 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:41:24,264 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:41:24,265 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:41:24,265 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:41:24,266 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8e216444-c88f-412d-856e-052a3c5c6e33/bin-2019/utaipan/../../sv-benchmarks/c/loop-lit/hhk2008_true-unreach-call_true-termination.c.i [2018-11-23 12:41:24,310 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8e216444-c88f-412d-856e-052a3c5c6e33/bin-2019/utaipan/data/d21eef154/982431b95fb746028a3fd34a977d0848/FLAGa63ddcd95 [2018-11-23 12:41:24,711 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:41:24,711 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8e216444-c88f-412d-856e-052a3c5c6e33/sv-benchmarks/c/loop-lit/hhk2008_true-unreach-call_true-termination.c.i [2018-11-23 12:41:24,715 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8e216444-c88f-412d-856e-052a3c5c6e33/bin-2019/utaipan/data/d21eef154/982431b95fb746028a3fd34a977d0848/FLAGa63ddcd95 [2018-11-23 12:41:24,724 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8e216444-c88f-412d-856e-052a3c5c6e33/bin-2019/utaipan/data/d21eef154/982431b95fb746028a3fd34a977d0848 [2018-11-23 12:41:24,726 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:41:24,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:41:24,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:41:24,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:41:24,730 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:41:24,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:41:24" (1/1) ... [2018-11-23 12:41:24,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337624aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:24, skipping insertion in model container [2018-11-23 12:41:24,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:41:24" (1/1) ... [2018-11-23 12:41:24,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:41:24,758 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:41:24,864 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:41:24,866 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:41:24,876 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:41:24,884 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:41:24,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:24 WrapperNode [2018-11-23 12:41:24,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:41:24,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:41:24,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:41:24,885 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:41:24,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:24" (1/1) ... [2018-11-23 12:41:24,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:24" (1/1) ... [2018-11-23 12:41:24,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:41:24,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:41:24,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:41:24,897 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:41:24,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:24" (1/1) ... [2018-11-23 12:41:24,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:24" (1/1) ... [2018-11-23 12:41:24,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:24" (1/1) ... [2018-11-23 12:41:24,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:24" (1/1) ... [2018-11-23 12:41:24,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:24" (1/1) ... [2018-11-23 12:41:24,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:24" (1/1) ... [2018-11-23 12:41:24,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:24" (1/1) ... [2018-11-23 12:41:24,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:41:24,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:41:24,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:41:24,910 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:41:24,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8e216444-c88f-412d-856e-052a3c5c6e33/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 [2018-11-23 12:41:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 12:41:24,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 12:41:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:41:24,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:41:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 12:41:24,982 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 12:41:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 12:41:24,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 12:41:25,079 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:41:25,079 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 12:41:25,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:41:25 BoogieIcfgContainer [2018-11-23 12:41:25,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:41:25,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 12:41:25,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 12:41:25,082 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 12:41:25,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:41:24" (1/3) ... [2018-11-23 12:41:25,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71171533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:41:25, skipping insertion in model container [2018-11-23 12:41:25,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:41:24" (2/3) ... [2018-11-23 12:41:25,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71171533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:41:25, skipping insertion in model container [2018-11-23 12:41:25,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:41:25" (3/3) ... [2018-11-23 12:41:25,084 INFO L112 eAbstractionObserver]: Analyzing ICFG hhk2008_true-unreach-call_true-termination.c.i [2018-11-23 12:41:25,090 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 12:41:25,094 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 12:41:25,105 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 12:41:25,128 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 12:41:25,129 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 12:41:25,129 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 12:41:25,129 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:41:25,129 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:41:25,129 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 12:41:25,129 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:41:25,129 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 12:41:25,140 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-23 12:41:25,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 12:41:25,144 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:41:25,144 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:41:25,145 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:41:25,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:41:25,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1632835705, now seen corresponding path program 1 times [2018-11-23 12:41:25,150 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:41:25,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:41:25,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:41:25,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:41:25,180 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:41:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:41:25,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:41:25,324 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:41:25,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 12:41:25,325 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:41:25,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 12:41:25,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 12:41:25,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-23 12:41:25,337 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 6 states. [2018-11-23 12:41:25,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:41:25,431 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2018-11-23 12:41:25,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 12:41:25,433 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-11-23 12:41:25,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:41:25,439 INFO L225 Difference]: With dead ends: 41 [2018-11-23 12:41:25,439 INFO L226 Difference]: Without dead ends: 14 [2018-11-23 12:41:25,442 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-23 12:41:25,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-23 12:41:25,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-23 12:41:25,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-23 12:41:25,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-23 12:41:25,465 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-11-23 12:41:25,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:41:25,465 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-23 12:41:25,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 12:41:25,465 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-23 12:41:25,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 12:41:25,466 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:41:25,466 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:41:25,466 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:41:25,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:41:25,467 INFO L82 PathProgramCache]: Analyzing trace with hash -886162946, now seen corresponding path program 1 times [2018-11-23 12:41:25,467 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:41:25,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:41:25,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:41:25,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:41:25,468 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:41:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:41:25,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:41:25,581 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:41:25,581 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:41:25,581 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-11-23 12:41:25,583 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [19], [21], [28], [31], [33], [39], [40], [41], [43] [2018-11-23 12:41:25,604 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:41:25,604 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:41:25,679 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:41:25,680 INFO L272 AbstractInterpreter]: Visited 13 different actions 13 times. Never merged. Never widened. Performed 36 root evaluator evaluations with a maximum evaluation depth of 5. Performed 36 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 1 fixpoints after 1 different actions. Largest state had 6 variables. [2018-11-23 12:41:25,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:41:25,685 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:41:25,685 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:41:25,685 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8e216444-c88f-412d-856e-052a3c5c6e33/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:41:25,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:41:25,692 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:41:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:41:25,705 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:41:25,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:41:25,812 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:41:25,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:41:25,892 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:41:25,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2018-11-23 12:41:25,892 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:41:25,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 12:41:25,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 12:41:25,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-11-23 12:41:25,893 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 10 states. [2018-11-23 12:41:26,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:41:26,019 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2018-11-23 12:41:26,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 12:41:26,019 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2018-11-23 12:41:26,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:41:26,020 INFO L225 Difference]: With dead ends: 16 [2018-11-23 12:41:26,020 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 12:41:26,021 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2018-11-23 12:41:26,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 12:41:26,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 12:41:26,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 12:41:26,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 12:41:26,021 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-23 12:41:26,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:41:26,021 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:41:26,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 12:41:26,022 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 12:41:26,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:41:26,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 12:41:26,086 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 12:41:26,086 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 12:41:26,086 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 12:41:26,086 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 12:41:26,087 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 12:41:26,087 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 12:41:26,087 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 24) the Hoare annotation is: true [2018-11-23 12:41:26,087 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 24) no Hoare annotation was computed. [2018-11-23 12:41:26,087 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 12:41:26,087 INFO L444 ceAbstractionStarter]: At program point L18-2(lines 18 21) the Hoare annotation is: (let ((.cse1 (+ main_~res~0 main_~cnt~0)) (.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 .cse1) (< main_~res~0 (+ main_~a~0 main_~b~0 1)) (<= .cse1 .cse0))) [2018-11-23 12:41:26,087 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-23 12:41:26,087 INFO L444 ceAbstractionStarter]: At program point L18-3(lines 18 21) the Hoare annotation is: (and (<= (+ main_~a~0 main_~b~0) main_~res~0) (< main_~res~0 (+ main_~a~0 main_~b~0 1))) [2018-11-23 12:41:26,087 INFO L448 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-23 12:41:26,088 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 24) no Hoare annotation was computed. [2018-11-23 12:41:26,088 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-23 12:41:26,088 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-23 12:41:26,088 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-23 12:41:26,088 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-23 12:41:26,088 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-23 12:41:26,088 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-23 12:41:26,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:41:26 BoogieIcfgContainer [2018-11-23 12:41:26,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 12:41:26,097 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 12:41:26,097 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 12:41:26,097 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 12:41:26,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:41:25" (3/4) ... [2018-11-23 12:41:26,100 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 12:41:26,104 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 12:41:26,104 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 12:41:26,104 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 12:41:26,106 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-23 12:41:26,107 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 12:41:26,107 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 12:41:26,138 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8e216444-c88f-412d-856e-052a3c5c6e33/bin-2019/utaipan/witness.graphml [2018-11-23 12:41:26,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 12:41:26,139 INFO L168 Benchmark]: Toolchain (without parser) took 1413.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 960.3 MB in the beginning and 1.0 GB in the end (delta: -46.7 MB). Peak memory consumption was 90.1 MB. Max. memory is 11.5 GB. [2018-11-23 12:41:26,140 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-23 12:41:26,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.68 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:41:26,140 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.11 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:41:26,141 INFO L168 Benchmark]: Boogie Preprocessor took 12.35 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:41:26,141 INFO L168 Benchmark]: RCFGBuilder took 169.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-23 12:41:26,141 INFO L168 Benchmark]: TraceAbstraction took 1016.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 112.9 MB). Peak memory consumption was 112.9 MB. Max. memory is 11.5 GB. [2018-11-23 12:41:26,142 INFO L168 Benchmark]: Witness Printer took 41.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:41:26,144 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 157.68 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 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 12.11 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.35 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 169.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1016.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 112.9 MB). Peak memory consumption was 112.9 MB. Max. memory is 11.5 GB. * Witness Printer took 41.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 18]: Loop Invariant Derived loop invariant: (a + b <= res + cnt && res < a + b + 1) && res + cnt <= a + b - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 15 SDslu, 88 SDs, 0 SdLazy, 57 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 15 NumberOfFragments, 38 HoareAnnotationTreeSize, 10 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 73 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 2523 SizeOfPredicates, 5 NumberOfNonLiveVariables, 40 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...