./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1011a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1011a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 15a3ba5a5ea1f616f1714f6dddddb6b3e57753c0 .................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1011a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 15a3ba5a5ea1f616f1714f6dddddb6b3e57753c0 .................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (concat (_ BitVec 32) (_ BitVec 32) (_ BitVec 64)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:25:26,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:25:26,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:25:26,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:25:26,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:25:26,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:25:26,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:25:26,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:25:26,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:25:26,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:25:26,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:25:26,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:25:26,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:25:26,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:25:26,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:25:26,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:25:26,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:25:26,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:25:26,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:25:26,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:25:27,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:25:27,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:25:27,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:25:27,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:25:27,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:25:27,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:25:27,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:25:27,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:25:27,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:25:27,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:25:27,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:25:27,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:25:27,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:25:27,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:25:27,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:25:27,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:25:27,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:25:27,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:25:27,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:25:27,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:25:27,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:25:27,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:25:27,070 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:25:27,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:25:27,071 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:25:27,071 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:25:27,071 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:25:27,072 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:25:27,072 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:25:27,072 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:25:27,072 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:25:27,072 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:25:27,073 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:25:27,073 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:25:27,073 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:25:27,073 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:25:27,074 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:25:27,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:25:27,075 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:25:27,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:25:27,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:25:27,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:25:27,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:25:27,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:25:27,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:25:27,076 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:25:27,076 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:25:27,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:25:27,077 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:25:27,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:25:27,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:25:27,077 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:25:27,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:25:27,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:25:27,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:25:27,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:25:27,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:25:27,079 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:25:27,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:25:27,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:25:27,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:25:27,080 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:25:27,080 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15a3ba5a5ea1f616f1714f6dddddb6b3e57753c0 [2020-11-28 07:25:27,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:25:27,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:25:27,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:25:27,340 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:25:27,343 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:25:27,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1011a.c [2020-11-28 07:25:27,426 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/data/f4aade2b0/b9e56387e4834b429a6f5fc67aaf12b6/FLAG0936aae7c [2020-11-28 07:25:27,868 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:25:27,868 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/sv-benchmarks/c/float-newlib/double_req_bl_1011a.c [2020-11-28 07:25:27,882 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/data/f4aade2b0/b9e56387e4834b429a6f5fc67aaf12b6/FLAG0936aae7c [2020-11-28 07:25:28,272 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/data/f4aade2b0/b9e56387e4834b429a6f5fc67aaf12b6 [2020-11-28 07:25:28,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:25:28,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:25:28,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:25:28,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:25:28,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:25:28,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:25:28" (1/1) ... [2020-11-28 07:25:28,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f901342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:28, skipping insertion in model container [2020-11-28 07:25:28,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:25:28" (1/1) ... [2020-11-28 07:25:28,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:25:28,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:25:28,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:25:28,506 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:25:28,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:25:28,541 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:25:28,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:28 WrapperNode [2020-11-28 07:25:28,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:25:28,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:25:28,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:25:28,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:25:28,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:28" (1/1) ... [2020-11-28 07:25:28,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:28" (1/1) ... [2020-11-28 07:25:28,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:25:28,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:25:28,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:25:28,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:25:28,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:28" (1/1) ... [2020-11-28 07:25:28,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:28" (1/1) ... [2020-11-28 07:25:28,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:28" (1/1) ... [2020-11-28 07:25:28,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:28" (1/1) ... [2020-11-28 07:25:28,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:28" (1/1) ... [2020-11-28 07:25:28,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:28" (1/1) ... [2020-11-28 07:25:28,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:28" (1/1) ... [2020-11-28 07:25:28,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:25:28,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:25:28,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:25:28,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:25:28,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/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 [2020-11-28 07:25:28,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:25:28,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:25:28,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-28 07:25:28,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 07:25:28,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-28 07:25:28,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:25:28,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:25:28,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 07:25:28,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:25:29,087 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:25:29,088 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-28 07:25:29,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:25:29 BoogieIcfgContainer [2020-11-28 07:25:29,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:25:29,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:25:29,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:25:29,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:25:29,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:25:28" (1/3) ... [2020-11-28 07:25:29,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779c649b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:25:29, skipping insertion in model container [2020-11-28 07:25:29,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:28" (2/3) ... [2020-11-28 07:25:29,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779c649b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:25:29, skipping insertion in model container [2020-11-28 07:25:29,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:25:29" (3/3) ... [2020-11-28 07:25:29,098 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1011a.c [2020-11-28 07:25:29,109 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:25:29,113 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:25:29,125 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:25:29,149 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:25:29,149 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:25:29,150 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:25:29,150 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:25:29,150 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:25:29,150 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:25:29,150 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:25:29,150 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:25:29,162 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-11-28 07:25:29,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 07:25:29,167 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:25:29,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:25:29,168 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:25:29,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:25:29,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1329761593, now seen corresponding path program 1 times [2020-11-28 07:25:29,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:25:29,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826146202] [2020-11-28 07:25:29,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:25:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:25:29,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:25:29,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826146202] [2020-11-28 07:25:29,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:25:29,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:25:29,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398180100] [2020-11-28 07:25:29,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:25:29,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:25:29,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:25:29,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:25:29,323 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-11-28 07:25:29,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:25:29,338 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-11-28 07:25:29,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:25:29,339 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-28 07:25:29,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:25:29,346 INFO L225 Difference]: With dead ends: 29 [2020-11-28 07:25:29,346 INFO L226 Difference]: Without dead ends: 13 [2020-11-28 07:25:29,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:25:29,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-28 07:25:29,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-28 07:25:29,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-28 07:25:29,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-11-28 07:25:29,380 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2020-11-28 07:25:29,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:25:29,381 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-28 07:25:29,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:25:29,381 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-11-28 07:25:29,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 07:25:29,382 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:25:29,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:25:29,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:25:29,382 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:25:29,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:25:29,384 INFO L82 PathProgramCache]: Analyzing trace with hash 2070533046, now seen corresponding path program 1 times [2020-11-28 07:25:29,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:25:29,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493032619] [2020-11-28 07:25:29,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:25:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:25:29,439 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:25:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:25:29,504 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:25:29,538 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:25:29,538 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:25:29,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:25:29,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:25:29 BoogieIcfgContainer [2020-11-28 07:25:29,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:25:29,575 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:25:29,575 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:25:29,576 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:25:29,577 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:25:29" (3/4) ... [2020-11-28 07:25:29,580 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:25:29,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:25:29,584 INFO L168 Benchmark]: Toolchain (without parser) took 1306.59 ms. Allocated memory is still 102.8 MB. Free memory was 73.6 MB in the beginning and 37.7 MB in the end (delta: 35.9 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:29,586 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 81.8 MB. Free memory was 40.8 MB in the beginning and 40.7 MB in the end (delta: 43.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:25:29,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.97 ms. Allocated memory is still 102.8 MB. Free memory was 73.4 MB in the beginning and 81.2 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:29,589 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.30 ms. Allocated memory is still 102.8 MB. Free memory was 81.2 MB in the beginning and 79.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:29,590 INFO L168 Benchmark]: Boogie Preprocessor took 26.13 ms. Allocated memory is still 102.8 MB. Free memory was 79.7 MB in the beginning and 78.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:29,591 INFO L168 Benchmark]: RCFGBuilder took 485.61 ms. Allocated memory is still 102.8 MB. Free memory was 78.2 MB in the beginning and 59.9 MB in the end (delta: 18.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:29,591 INFO L168 Benchmark]: TraceAbstraction took 483.49 ms. Allocated memory is still 102.8 MB. Free memory was 59.3 MB in the beginning and 38.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:29,592 INFO L168 Benchmark]: Witness Printer took 5.63 ms. Allocated memory is still 102.8 MB. Free memory was 38.3 MB in the beginning and 37.7 MB in the end (delta: 547.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:25:29,602 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 81.8 MB. Free memory was 40.8 MB in the beginning and 40.7 MB in the end (delta: 43.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 264.97 ms. Allocated memory is still 102.8 MB. Free memory was 73.4 MB in the beginning and 81.2 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.30 ms. Allocated memory is still 102.8 MB. Free memory was 81.2 MB in the beginning and 79.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.13 ms. Allocated memory is still 102.8 MB. Free memory was 79.7 MB in the beginning and 78.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 485.61 ms. Allocated memory is still 102.8 MB. Free memory was 78.2 MB in the beginning and 59.9 MB in the end (delta: 18.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 483.49 ms. Allocated memory is still 102.8 MB. Free memory was 59.3 MB in the beginning and 38.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.63 ms. Allocated memory is still 102.8 MB. Free memory was 38.3 MB in the beginning and 37.7 MB in the end (delta: 547.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 53, overapproximation of bitwiseAnd at line 37. Possible FailurePath: [L49] double x = 0.0; [L28] __uint32_t high; [L30] ieee_double_shape_type gh_u; [L31] gh_u.value = (x) [L32] EXPR gh_u.parts.msw [L32] (high) = gh_u.parts.msw [L35] ieee_double_shape_type sh_u; [L36] sh_u.value = (x) [L37] sh_u.parts.msw = (high & 0x7fffffff) [L38] EXPR sh_u.value [L38] (x) = sh_u.value [L40] return x; [L50] double res = fabs_double(x); [L53] EXPR res == 0.0 && __signbit_double(res) == 0 [L53] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L3] __assert_fail("0", "double_req_bl_1011a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: 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 0.2.0-a4ecdab [2020-11-28 07:25:32,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:25:32,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:25:32,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:25:32,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:25:32,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:25:32,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:25:32,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:25:32,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:25:32,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:25:32,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:25:32,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:25:32,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:25:32,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:25:32,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:25:32,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:25:32,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:25:32,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:25:32,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:25:32,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:25:32,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:25:32,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:25:32,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:25:32,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:25:32,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:25:32,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:25:32,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:25:32,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:25:32,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:25:32,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:25:32,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:25:32,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:25:32,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:25:32,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:25:32,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:25:32,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:25:32,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:25:32,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:25:32,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:25:32,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:25:32,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:25:32,179 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:25:32,218 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:25:32,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:25:32,220 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:25:32,220 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:25:32,220 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:25:32,220 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:25:32,220 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:25:32,221 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:25:32,221 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:25:32,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:25:32,223 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:25:32,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:25:32,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:25:32,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:25:32,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:25:32,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:25:32,225 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:25:32,225 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:25:32,225 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:25:32,226 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:25:32,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:25:32,226 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:25:32,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:25:32,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:25:32,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:25:32,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:25:32,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:25:32,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:25:32,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:25:32,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:25:32,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:25:32,228 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:25:32,228 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:25:32,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:25:32,229 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:25:32,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:25:32,229 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15a3ba5a5ea1f616f1714f6dddddb6b3e57753c0 [2020-11-28 07:25:32,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:25:32,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:25:32,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:25:32,612 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:25:32,613 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:25:32,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1011a.c [2020-11-28 07:25:32,673 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/data/3a4c918d8/1d30982eed3e44ad9938cd03f1b9074d/FLAG63f435cd2 [2020-11-28 07:25:33,100 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:25:33,101 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/sv-benchmarks/c/float-newlib/double_req_bl_1011a.c [2020-11-28 07:25:33,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/data/3a4c918d8/1d30982eed3e44ad9938cd03f1b9074d/FLAG63f435cd2 [2020-11-28 07:25:33,524 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/data/3a4c918d8/1d30982eed3e44ad9938cd03f1b9074d [2020-11-28 07:25:33,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:25:33,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:25:33,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:25:33,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:25:33,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:25:33,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:25:33" (1/1) ... [2020-11-28 07:25:33,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b30bae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:33, skipping insertion in model container [2020-11-28 07:25:33,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:25:33" (1/1) ... [2020-11-28 07:25:33,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:25:33,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:25:33,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:25:33,795 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:25:33,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:25:33,869 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:25:33,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:33 WrapperNode [2020-11-28 07:25:33,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:25:33,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:25:33,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:25:33,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:25:33,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:33" (1/1) ... [2020-11-28 07:25:33,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:33" (1/1) ... [2020-11-28 07:25:33,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:25:33,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:25:33,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:25:33,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:25:33,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:33" (1/1) ... [2020-11-28 07:25:33,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:33" (1/1) ... [2020-11-28 07:25:33,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:33" (1/1) ... [2020-11-28 07:25:33,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:33" (1/1) ... [2020-11-28 07:25:34,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:33" (1/1) ... [2020-11-28 07:25:34,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:33" (1/1) ... [2020-11-28 07:25:34,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:33" (1/1) ... [2020-11-28 07:25:34,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:25:34,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:25:34,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:25:34,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:25:34,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/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 [2020-11-28 07:25:34,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-28 07:25:34,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-28 07:25:34,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:25:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:25:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 07:25:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:25:34,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:25:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 07:25:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:25:34,558 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:25:34,558 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-28 07:25:34,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:25:34 BoogieIcfgContainer [2020-11-28 07:25:34,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:25:34,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:25:34,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:25:34,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:25:34,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:25:33" (1/3) ... [2020-11-28 07:25:34,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e961c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:25:34, skipping insertion in model container [2020-11-28 07:25:34,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:33" (2/3) ... [2020-11-28 07:25:34,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e961c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:25:34, skipping insertion in model container [2020-11-28 07:25:34,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:25:34" (3/3) ... [2020-11-28 07:25:34,584 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1011a.c [2020-11-28 07:25:34,597 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:25:34,615 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:25:34,642 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:25:34,685 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:25:34,685 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:25:34,694 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:25:34,694 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:25:34,694 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:25:34,695 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:25:34,695 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:25:34,695 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:25:34,710 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-11-28 07:25:34,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 07:25:34,715 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:25:34,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:25:34,717 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:25:34,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:25:34,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1641221055, now seen corresponding path program 1 times [2020-11-28 07:25:34,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:25:34,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891648895] [2020-11-28 07:25:34,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/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 [2020-11-28 07:25:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:25:34,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 07:25:34,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:25:34,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:25:34,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:25:34,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:25:34,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891648895] [2020-11-28 07:25:34,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:25:34,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:25:34,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757241842] [2020-11-28 07:25:34,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:25:34,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:25:34,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:25:34,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:25:34,922 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-11-28 07:25:34,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:25:34,948 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2020-11-28 07:25:34,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:25:34,949 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-28 07:25:34,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:25:34,960 INFO L225 Difference]: With dead ends: 37 [2020-11-28 07:25:34,961 INFO L226 Difference]: Without dead ends: 16 [2020-11-28 07:25:34,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:25:34,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-28 07:25:34,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-28 07:25:34,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 07:25:34,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-28 07:25:34,995 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2020-11-28 07:25:34,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:25:34,995 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-28 07:25:34,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:25:34,996 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-28 07:25:34,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 07:25:34,997 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:25:34,997 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:25:35,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:25:35,215 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:25:35,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:25:35,216 INFO L82 PathProgramCache]: Analyzing trace with hash 558264036, now seen corresponding path program 1 times [2020-11-28 07:25:35,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:25:35,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347680856] [2020-11-28 07:25:35,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/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 [2020-11-28 07:25:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:25:35,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-28 07:25:35,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:25:35,507 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2020-11-28 07:25:35,520 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 07:25:35,526 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:25:35,526 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 07:25:35,545 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:25:35,547 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-28 07:25:35,547 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:91, output treesize:52 [2020-11-28 07:25:35,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:25:35,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:25:35,653 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2020-11-28 07:25:35,658 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 07:25:35,662 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:25:35,662 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 07:25:35,685 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:25:35,686 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 07:25:35,686 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:71, output treesize:35 [2020-11-28 07:25:35,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:25:35,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347680856] [2020-11-28 07:25:35,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:25:35,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-11-28 07:25:35,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045390717] [2020-11-28 07:25:35,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 07:25:35,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:25:35,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 07:25:35,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-11-28 07:25:35,778 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 9 states. [2020-11-28 07:25:35,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:25:35,921 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-11-28 07:25:35,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:25:35,922 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2020-11-28 07:25:35,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:25:35,922 INFO L225 Difference]: With dead ends: 19 [2020-11-28 07:25:35,922 INFO L226 Difference]: Without dead ends: 16 [2020-11-28 07:25:35,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-11-28 07:25:35,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-28 07:25:35,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-28 07:25:35,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 07:25:35,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-28 07:25:35,927 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2020-11-28 07:25:35,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:25:35,928 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-28 07:25:35,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 07:25:35,939 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-28 07:25:35,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 07:25:35,940 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:25:35,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:25:36,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:25:36,148 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:25:36,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:25:36,149 INFO L82 PathProgramCache]: Analyzing trace with hash -2014349959, now seen corresponding path program 1 times [2020-11-28 07:25:36,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:25:36,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383439743] [2020-11-28 07:25:36,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab7ed3dc-4101-486d-bba5-f0c70d1eb059/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-28 07:25:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:25:36,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-28 07:25:36,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:25:36,324 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 48 [2020-11-28 07:25:36,332 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2020-11-28 07:25:36,333 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 07:25:36,337 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:25:36,338 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 07:25:36,349 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:25:36,350 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-28 07:25:36,350 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:64, output treesize:34 [2020-11-28 07:25:36,579 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 07:25:36,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:25:36,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:25:37,030 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 49 [2020-11-28 07:25:37,038 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2020-11-28 07:25:37,039 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 07:25:37,043 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:25:37,044 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 07:25:37,059 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:25:37,060 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-28 07:25:37,061 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:62, output treesize:35 [2020-11-28 07:25:37,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:25:37,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383439743] [2020-11-28 07:25:37,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:25:37,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 18 [2020-11-28 07:25:37,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113256020] [2020-11-28 07:25:37,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-28 07:25:37,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:25:37,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-28 07:25:37,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-11-28 07:25:37,256 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 18 states. [2020-11-28 07:25:37,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:25:37,956 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-11-28 07:25:37,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 07:25:37,956 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 15 [2020-11-28 07:25:37,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:25:37,957 INFO L225 Difference]: With dead ends: 16 [2020-11-28 07:25:37,957 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:25:37,958 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2020-11-28 07:25:37,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:25:37,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:25:37,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:25:37,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:25:37,958 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-28 07:25:37,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:25:37,959 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:25:37,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-28 07:25:37,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:25:37,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:25:38,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 07:25:38,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:25:38,317 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 34 [2020-11-28 07:25:38,488 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2020-11-28 07:25:38,491 INFO L274 CegarLoopResult]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2020-11-28 07:25:38,491 INFO L270 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|) ULTIMATE.start_fabs_double_~high~0))) (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64)) (v_arrayElimCell_4 (_ BitVec 32))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|))) (= ULTIMATE.start_main_~res~0 (let ((.cse0 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) v_arrayElimCell_4))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0)))))) (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64)) (v_arrayElimCell_4 (_ BitVec 32))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|))) (= ULTIMATE.start___signbit_double_~x (let ((.cse1 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) v_arrayElimCell_4))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1)))))) (= (_ +zero 11 53) ULTIMATE.start_fabs_double_~x) (= (_ +zero 11 53) |ULTIMATE.start_fabs_double_#res|) |ULTIMATE.start_main_#t~short15|) [2020-11-28 07:25:38,491 INFO L274 CegarLoopResult]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2020-11-28 07:25:38,491 INFO L270 CegarLoopResult]: At program point L40(lines 27 41) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|) ULTIMATE.start_fabs_double_~high~0))) (= (_ +zero 11 53) ULTIMATE.start_fabs_double_~x) (= (_ +zero 11 53) |ULTIMATE.start_fabs_double_#res|)) [2020-11-28 07:25:38,492 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 07:25:38,492 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 07:25:38,492 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 07:25:38,492 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:25:38,492 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 07:25:38,492 INFO L277 CegarLoopResult]: At program point L57(lines 43 58) the Hoare annotation is: true [2020-11-28 07:25:38,492 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 07:25:38,492 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-11-28 07:25:38,492 INFO L274 CegarLoopResult]: For program point L53-2(lines 53 56) no Hoare annotation was computed. [2020-11-28 07:25:38,492 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:25:38,493 INFO L274 CegarLoopResult]: For program point L29-1(lines 29 33) no Hoare annotation was computed. [2020-11-28 07:25:38,493 INFO L270 CegarLoopResult]: At program point L29-2(lines 29 33) the Hoare annotation is: (= (_ +zero 11 53) ULTIMATE.start_fabs_double_~x) [2020-11-28 07:25:38,493 INFO L270 CegarLoopResult]: At program point L25(lines 16 26) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|) ULTIMATE.start_fabs_double_~high~0))) (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64)) (v_arrayElimCell_4 (_ BitVec 32))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|))) (= ULTIMATE.start_main_~res~0 (let ((.cse0 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) v_arrayElimCell_4))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0)))))) (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64)) (v_arrayElimCell_4 (_ BitVec 32))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|))) (= ULTIMATE.start___signbit_double_~x (let ((.cse1 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) v_arrayElimCell_4))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1)))))) (= (_ +zero 11 53) ULTIMATE.start_fabs_double_~x) (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64)) (v_arrayElimCell_4 (_ BitVec 32)) (v_skolemized_v_prenex_2_3 (_ BitVec 64))) (and (= ULTIMATE.start___signbit_double_~msw~0 ((_ extract 63 32) v_skolemized_v_prenex_2_3)) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|))) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_2_3) ((_ extract 62 52) v_skolemized_v_prenex_2_3) ((_ extract 51 0) v_skolemized_v_prenex_2_3)) (let ((.cse2 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) v_arrayElimCell_4))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2)))))) (= |ULTIMATE.start___signbit_double_#res| (_ bv0 32)) (= (_ +zero 11 53) |ULTIMATE.start_fabs_double_#res|) |ULTIMATE.start_main_#t~short15|) [2020-11-28 07:25:38,493 INFO L274 CegarLoopResult]: For program point L34(lines 34 39) no Hoare annotation was computed. [2020-11-28 07:25:38,493 INFO L274 CegarLoopResult]: For program point L34-1(lines 27 41) no Hoare annotation was computed. [2020-11-28 07:25:38,493 INFO L274 CegarLoopResult]: For program point L34-2(lines 34 39) no Hoare annotation was computed. [2020-11-28 07:25:38,507 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (concat (_ BitVec 32) (_ BitVec 32) (_ BitVec 64)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:446) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-28 07:25:38,514 INFO L168 Benchmark]: Toolchain (without parser) took 4984.60 ms. Allocated memory was 73.4 MB in the beginning and 90.2 MB in the end (delta: 16.8 MB). Free memory was 53.2 MB in the beginning and 47.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:38,516 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 50.3 MB. Free memory was 31.8 MB in the beginning and 31.7 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:25:38,522 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.35 ms. Allocated memory is still 73.4 MB. Free memory was 53.0 MB in the beginning and 42.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:38,523 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.96 ms. Allocated memory is still 73.4 MB. Free memory was 42.4 MB in the beginning and 57.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:38,523 INFO L168 Benchmark]: Boogie Preprocessor took 64.59 ms. Allocated memory is still 73.4 MB. Free memory was 57.6 MB in the beginning and 56.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:25:38,524 INFO L168 Benchmark]: RCFGBuilder took 528.29 ms. Allocated memory is still 73.4 MB. Free memory was 56.1 MB in the beginning and 39.5 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:38,525 INFO L168 Benchmark]: TraceAbstraction took 3942.35 ms. Allocated memory was 73.4 MB in the beginning and 90.2 MB in the end (delta: 16.8 MB). Free memory was 39.1 MB in the beginning and 47.6 MB in the end (delta: -8.6 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:38,536 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 50.3 MB. Free memory was 31.8 MB in the beginning and 31.7 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 341.35 ms. Allocated memory is still 73.4 MB. Free memory was 53.0 MB in the beginning and 42.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.96 ms. Allocated memory is still 73.4 MB. Free memory was 42.4 MB in the beginning and 57.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.59 ms. Allocated memory is still 73.4 MB. Free memory was 57.6 MB in the beginning and 56.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 528.29 ms. Allocated memory is still 73.4 MB. Free memory was 56.1 MB in the beginning and 39.5 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3942.35 ms. Allocated memory was 73.4 MB in the beginning and 90.2 MB in the end (delta: 16.8 MB). Free memory was 39.1 MB in the beginning and 47.6 MB in the end (delta: -8.6 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 29]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == x - ExceptionOrErrorResult: UnsupportedOperationException: translation of (concat (_ BitVec 32) (_ BitVec 32) (_ BitVec 64)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (concat (_ BitVec 32) (_ BitVec 32) (_ BitVec 64)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...