./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/rlim_invariant_true-unreach-call.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/rlim_invariant_true-unreach-call.c.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/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 22373866aae52af60bd2dae8e24bb583522182de ................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/rlim_invariant_true-unreach-call.c.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/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 22373866aae52af60bd2dae8e24bb583522182de .............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:03:24,365 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:03:24,366 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:03:24,373 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:03:24,373 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:03:24,374 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:03:24,375 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:03:24,376 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:03:24,377 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:03:24,378 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:03:24,379 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:03:24,379 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:03:24,379 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:03:24,380 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:03:24,381 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:03:24,381 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:03:24,382 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:03:24,383 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:03:24,384 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:03:24,385 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:03:24,385 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:03:24,386 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:03:24,388 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:03:24,388 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:03:24,389 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:03:24,389 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:03:24,390 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:03:24,390 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:03:24,391 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:03:24,392 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:03:24,392 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:03:24,392 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:03:24,392 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:03:24,393 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:03:24,393 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:03:24,394 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:03:24,394 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 04:03:24,405 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:03:24,405 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:03:24,406 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:03:24,406 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 04:03:24,406 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 04:03:24,406 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 04:03:24,407 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 04:03:24,407 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 04:03:24,407 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 04:03:24,407 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 04:03:24,407 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 04:03:24,408 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:03:24,408 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:03:24,408 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:03:24,408 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:03:24,408 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:03:24,408 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:03:24,409 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:03:24,409 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:03:24,409 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:03:24,409 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:03:24,409 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:03:24,409 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:03:24,409 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:03:24,410 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:03:24,410 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:03:24,410 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:03:24,410 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:03:24,410 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:03:24,410 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:03:24,410 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 04:03:24,411 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:03:24,411 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:03:24,411 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 04:03:24,411 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_97d3d923-011a-4297-955a-1e6e9529db7e/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 -> 22373866aae52af60bd2dae8e24bb583522182de [2018-11-10 04:03:24,437 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:03:24,448 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:03:24,451 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:03:24,452 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:03:24,452 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:03:24,453 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/rlim_invariant_true-unreach-call.c.v+lhb-reducer.c [2018-11-10 04:03:24,504 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/data/b7d9bf873/43c49b1f64024ae4889e8b8d1a47cc94/FLAGfca3bfd9b [2018-11-10 04:03:24,852 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:03:24,852 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/sv-benchmarks/c/float-benchs/rlim_invariant_true-unreach-call.c.v+lhb-reducer.c [2018-11-10 04:03:24,859 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/data/b7d9bf873/43c49b1f64024ae4889e8b8d1a47cc94/FLAGfca3bfd9b [2018-11-10 04:03:24,871 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/data/b7d9bf873/43c49b1f64024ae4889e8b8d1a47cc94 [2018-11-10 04:03:24,874 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:03:24,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:03:24,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:03:24,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:03:24,879 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:03:24,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:03:24" (1/1) ... [2018-11-10 04:03:24,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d89bcad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:24, skipping insertion in model container [2018-11-10 04:03:24,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:03:24" (1/1) ... [2018-11-10 04:03:24,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:03:24,912 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:03:25,044 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:03:25,048 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:03:25,071 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:03:25,083 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:03:25,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:25 WrapperNode [2018-11-10 04:03:25,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:03:25,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:03:25,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:03:25,084 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:03:25,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:25" (1/1) ... [2018-11-10 04:03:25,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:25" (1/1) ... [2018-11-10 04:03:25,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:03:25,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:03:25,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:03:25,101 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:03:25,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:25" (1/1) ... [2018-11-10 04:03:25,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:25" (1/1) ... [2018-11-10 04:03:25,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:25" (1/1) ... [2018-11-10 04:03:25,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:25" (1/1) ... [2018-11-10 04:03:25,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:25" (1/1) ... [2018-11-10 04:03:25,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:25" (1/1) ... [2018-11-10 04:03:25,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:25" (1/1) ... [2018-11-10 04:03:25,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:03:25,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:03:25,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:03:25,119 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:03:25,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:03:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:03:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:03:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:03:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:03:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:03:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:03:25,386 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:03:25,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:03:25 BoogieIcfgContainer [2018-11-10 04:03:25,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:03:25,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:03:25,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:03:25,389 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:03:25,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:03:24" (1/3) ... [2018-11-10 04:03:25,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6241cf17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:03:25, skipping insertion in model container [2018-11-10 04:03:25,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:25" (2/3) ... [2018-11-10 04:03:25,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6241cf17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:03:25, skipping insertion in model container [2018-11-10 04:03:25,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:03:25" (3/3) ... [2018-11-10 04:03:25,392 INFO L112 eAbstractionObserver]: Analyzing ICFG rlim_invariant_true-unreach-call.c.v+lhb-reducer.c [2018-11-10 04:03:25,402 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:03:25,408 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-10 04:03:25,421 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-10 04:03:25,450 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:03:25,451 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:03:25,451 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:03:25,451 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:03:25,451 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:03:25,451 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:03:25,451 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:03:25,452 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:03:25,468 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-10 04:03:25,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 04:03:25,473 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:03:25,473 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:03:25,475 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:03:25,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:03:25,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1836001814, now seen corresponding path program 1 times [2018-11-10 04:03:25,480 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:03:25,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:03:25,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:03:25,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:03:25,515 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:03:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:03:25,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:03:25,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:03:25,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 04:03:25,600 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:03:25,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 04:03:25,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 04:03:25,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 04:03:25,619 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2018-11-10 04:03:25,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:03:25,682 INFO L93 Difference]: Finished difference Result 78 states and 113 transitions. [2018-11-10 04:03:25,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 04:03:25,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-11-10 04:03:25,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:03:25,690 INFO L225 Difference]: With dead ends: 78 [2018-11-10 04:03:25,690 INFO L226 Difference]: Without dead ends: 66 [2018-11-10 04:03:25,692 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 04:03:25,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-10 04:03:25,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 45. [2018-11-10 04:03:25,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-10 04:03:25,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions. [2018-11-10 04:03:25,720 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 20 [2018-11-10 04:03:25,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:03:25,720 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 57 transitions. [2018-11-10 04:03:25,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 04:03:25,720 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions. [2018-11-10 04:03:25,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 04:03:25,721 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:03:25,721 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:03:25,722 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:03:25,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:03:25,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1751306001, now seen corresponding path program 1 times [2018-11-10 04:03:25,722 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:03:25,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:03:25,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:03:25,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:03:25,724 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:03:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:03:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:03:25,764 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 04:03:25,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 04:03:25 BoogieIcfgContainer [2018-11-10 04:03:25,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 04:03:25,790 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:03:25,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:03:25,790 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:03:25,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:03:25" (3/4) ... [2018-11-10 04:03:25,793 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 04:03:25,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:03:25,794 INFO L168 Benchmark]: Toolchain (without parser) took 919.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -122.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-11-10 04:03:25,795 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:03:25,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.78 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.7 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-10 04:03:25,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.99 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:03:25,796 INFO L168 Benchmark]: Boogie Preprocessor took 17.16 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 943.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:03:25,797 INFO L168 Benchmark]: RCFGBuilder took 267.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -173.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:03:25,797 INFO L168 Benchmark]: TraceAbstraction took 402.82 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-10 04:03:25,797 INFO L168 Benchmark]: Witness Printer took 3.39 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. [2018-11-10 04:03:25,799 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 207.78 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.7 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.99 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.16 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 943.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 267.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -173.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 402.82 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.39 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 62]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryDOUBLEComparisonOperation at line 49, overapproximation of to_real at line 19, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L1] int __return_main; [L7] int __tmp_160_0; [L8] int __tmp_160_1; [L9] int __tmp_160_2; [L10] int __return_165; VAL [\old(__return_165)=5, \old(__return_main)=2, \old(__tmp_160_0)=8, \old(__tmp_160_1)=6, \old(__tmp_160_2)=7, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L13] float main__X; [L14] float main__Y; [L15] float main__S; [L16] float main__R; [L17] float main__D; [L18] int main__i; [L19] main__Y = 0 [L20] main__i = 0 VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__i=0] [L21] COND TRUE main__i < 100000 [L23] main__X = __VERIFIER_nondet_float() [L24] main__D = __VERIFIER_nondet_float() [L25] int main____CPAchecker_TMP_0; VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__D=1, main__i=0, main__X=3] [L26] COND TRUE main__X >= -128.0 VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__D=1, main__i=0, main__X=3] [L28] COND TRUE main__X <= 128.0 [L30] main____CPAchecker_TMP_0 = 1 VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__D=1, main__i=0, main__X=3] [L31] COND TRUE main____CPAchecker_TMP_0 != 0 [L33] int main____CPAchecker_TMP_1; VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__D=1, main__i=0, main__X=3] [L34] COND TRUE main__D >= 0.0 VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__D=1, main__i=0, main__X=3] [L36] COND TRUE main__D <= 16.0 [L38] main____CPAchecker_TMP_1 = 1 VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=1, main__i=0, main__X=3] [L39] COND TRUE main____CPAchecker_TMP_1 != 0 [L41] main__S = main__Y [L42] main__Y = main__X [L43] main__R = main__X - main__S VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=1, main__i=0, main__S=4, main__X=3, main__Y=3] [L44] COND TRUE main__R <= (-main__D) [L46] main__Y = main__S - main__D VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=1, main__i=0, main__S=4, main__X=3] [L48] int main____CPAchecker_TMP_2; VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=1, main__i=0, main__S=4, main__X=3] [L49] COND FALSE !(main__Y >= -129.0) VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=1, main__i=0, main__S=4, main__X=3] [L200] main____CPAchecker_TMP_2 = 0 VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=1, main__i=0, main__S=4, main__X=3] [L56] int __tmp_1; [L57] __tmp_1 = main____CPAchecker_TMP_2 [L58] int __VERIFIER_assert__cond; [L59] __VERIFIER_assert__cond = __tmp_1 VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=1, main__i=0, main__S=4, main__X=3] [L60] COND TRUE __VERIFIER_assert__cond == 0 VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=1, main__i=0, main__S=4, main__X=3] [L62] __VERIFIER_error() VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=1, main__i=0, main__S=4, main__X=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 47 locations, 2 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 36 SDslu, 130 SDs, 0 SdLazy, 10 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 21 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 437 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:03:27,379 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:03:27,381 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:03:27,391 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:03:27,391 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:03:27,392 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:03:27,393 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:03:27,394 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:03:27,395 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:03:27,396 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:03:27,397 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:03:27,397 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:03:27,398 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:03:27,398 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:03:27,399 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:03:27,400 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:03:27,401 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:03:27,402 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:03:27,403 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:03:27,405 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:03:27,406 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:03:27,406 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:03:27,408 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:03:27,409 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:03:27,409 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:03:27,409 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:03:27,410 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:03:27,411 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:03:27,412 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:03:27,412 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:03:27,413 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:03:27,413 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:03:27,413 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:03:27,414 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:03:27,414 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:03:27,415 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:03:27,415 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 04:03:27,429 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:03:27,430 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:03:27,430 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:03:27,431 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 04:03:27,431 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 04:03:27,431 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 04:03:27,431 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 04:03:27,431 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 04:03:27,432 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:03:27,432 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:03:27,432 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:03:27,432 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:03:27,432 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:03:27,433 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:03:27,433 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:03:27,433 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 04:03:27,433 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 04:03:27,433 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:03:27,433 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:03:27,434 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:03:27,434 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:03:27,434 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:03:27,434 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:03:27,434 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:03:27,434 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:03:27,435 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:03:27,435 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:03:27,435 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:03:27,435 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 04:03:27,435 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:03:27,435 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 04:03:27,435 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 04:03:27,436 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_97d3d923-011a-4297-955a-1e6e9529db7e/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 -> 22373866aae52af60bd2dae8e24bb583522182de [2018-11-10 04:03:27,471 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:03:27,483 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:03:27,486 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:03:27,487 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:03:27,488 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:03:27,489 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/rlim_invariant_true-unreach-call.c.v+lhb-reducer.c [2018-11-10 04:03:27,534 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/data/4eaec3152/893b69f2431e4388840f6ef1efd5be44/FLAGb22e09910 [2018-11-10 04:03:27,877 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:03:27,877 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/sv-benchmarks/c/float-benchs/rlim_invariant_true-unreach-call.c.v+lhb-reducer.c [2018-11-10 04:03:27,882 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/data/4eaec3152/893b69f2431e4388840f6ef1efd5be44/FLAGb22e09910 [2018-11-10 04:03:27,892 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/data/4eaec3152/893b69f2431e4388840f6ef1efd5be44 [2018-11-10 04:03:27,895 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:03:27,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:03:27,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:03:27,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:03:27,900 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:03:27,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:03:27" (1/1) ... [2018-11-10 04:03:27,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37424b37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:27, skipping insertion in model container [2018-11-10 04:03:27,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:03:27" (1/1) ... [2018-11-10 04:03:27,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:03:27,936 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:03:28,085 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:03:28,090 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:03:28,116 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:03:28,129 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:03:28,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:28 WrapperNode [2018-11-10 04:03:28,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:03:28,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:03:28,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:03:28,130 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:03:28,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:28" (1/1) ... [2018-11-10 04:03:28,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:28" (1/1) ... [2018-11-10 04:03:28,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:03:28,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:03:28,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:03:28,148 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:03:28,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:28" (1/1) ... [2018-11-10 04:03:28,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:28" (1/1) ... [2018-11-10 04:03:28,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:28" (1/1) ... [2018-11-10 04:03:28,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:28" (1/1) ... [2018-11-10 04:03:28,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:28" (1/1) ... [2018-11-10 04:03:28,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:28" (1/1) ... [2018-11-10 04:03:28,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:28" (1/1) ... [2018-11-10 04:03:28,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:03:28,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:03:28,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:03:28,168 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:03:28,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:03:28,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:03:28,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:03:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:03:28,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:03:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:03:28,270 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:03:30,432 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:03:30,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:03:30 BoogieIcfgContainer [2018-11-10 04:03:30,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:03:30,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:03:30,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:03:30,436 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:03:30,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:03:27" (1/3) ... [2018-11-10 04:03:30,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@880b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:03:30, skipping insertion in model container [2018-11-10 04:03:30,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:03:28" (2/3) ... [2018-11-10 04:03:30,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@880b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:03:30, skipping insertion in model container [2018-11-10 04:03:30,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:03:30" (3/3) ... [2018-11-10 04:03:30,439 INFO L112 eAbstractionObserver]: Analyzing ICFG rlim_invariant_true-unreach-call.c.v+lhb-reducer.c [2018-11-10 04:03:30,445 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:03:30,451 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-10 04:03:30,461 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-10 04:03:30,483 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 04:03:30,483 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:03:30,484 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:03:30,484 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:03:30,484 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:03:30,484 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:03:30,484 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:03:30,484 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:03:30,485 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:03:30,499 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-10 04:03:30,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 04:03:30,503 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:03:30,504 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:03:30,506 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:03:30,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:03:30,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1836001814, now seen corresponding path program 1 times [2018-11-10 04:03:30,513 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 04:03:30,513 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 04:03:30,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:03:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:03:30,613 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:03:30,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:03:30,655 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 04:03:30,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:03:30,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 04:03:30,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 04:03:30,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 04:03:30,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 04:03:30,689 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2018-11-10 04:03:30,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:03:30,759 INFO L93 Difference]: Finished difference Result 78 states and 113 transitions. [2018-11-10 04:03:30,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 04:03:30,762 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-11-10 04:03:30,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:03:30,772 INFO L225 Difference]: With dead ends: 78 [2018-11-10 04:03:30,772 INFO L226 Difference]: Without dead ends: 66 [2018-11-10 04:03:30,775 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 04:03:30,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-10 04:03:30,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 45. [2018-11-10 04:03:30,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-10 04:03:30,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions. [2018-11-10 04:03:30,805 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 20 [2018-11-10 04:03:30,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:03:30,806 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 57 transitions. [2018-11-10 04:03:30,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 04:03:30,806 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions. [2018-11-10 04:03:30,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 04:03:30,806 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:03:30,806 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:03:30,807 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:03:30,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:03:30,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1751306001, now seen corresponding path program 1 times [2018-11-10 04:03:30,807 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 04:03:30,808 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97d3d923-011a-4297-955a-1e6e9529db7e/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-10 04:03:30,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:03:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:03:30,907 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:03:31,554 WARN L179 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-10 04:03:32,287 WARN L179 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-10 04:03:34,332 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~main__D~0 (_ FloatingPoint 8 24)) (main_~main__R~0 (_ FloatingPoint 8 24))) (and (fp.leq main_~main__R~0 (fp.neg main_~main__D~0)) (fp.leq ((_ to_fp 11 53) RNE main_~main__D~0) ((_ to_fp 11 53) RNE 16.0)) (= c_main_~main__Y~0 (fp.sub RNE ((_ to_fp 8 24) RNE (_ bv0 32)) main_~main__D~0)))) is different from true [2018-11-10 04:03:34,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:03:34,915 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 04:03:34,925 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:03:34,926 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 04:03:34,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 04:03:34,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 04:03:34,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2018-11-10 04:03:34,927 INFO L87 Difference]: Start difference. First operand 45 states and 57 transitions. Second operand 6 states. [2018-11-10 04:03:39,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 04:03:39,466 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:150) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:354) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:382) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:673) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 49 more [2018-11-10 04:03:39,470 INFO L168 Benchmark]: Toolchain (without parser) took 11574.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 948.7 MB in the beginning and 1.0 GB in the end (delta: -96.3 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. [2018-11-10 04:03:39,471 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:03:39,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.90 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 932.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 04:03:39,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.85 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:03:39,472 INFO L168 Benchmark]: Boogie Preprocessor took 20.14 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:03:39,473 INFO L168 Benchmark]: RCFGBuilder took 2265.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2018-11-10 04:03:39,473 INFO L168 Benchmark]: TraceAbstraction took 9035.78 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. [2018-11-10 04:03:39,476 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 232.90 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 932.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.85 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.14 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2265.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9035.78 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...