./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1052d.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_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052d.c -s /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/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 4d3da3677db9bcac0085ed27f307e82ca02a6621 ............................................................................................................................................................................................................................................................................................................. 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_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052d.c -s /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/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 4d3da3677db9bcac0085ed27f307e82ca02a6621 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-22 13:06:17,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:06:17,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:06:17,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:06:17,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:06:17,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:06:17,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:06:17,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:06:17,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:06:17,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:06:17,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:06:17,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:06:17,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:06:17,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:06:17,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:06:17,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:06:17,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:06:17,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:06:17,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:06:17,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:06:17,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:06:17,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:06:17,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:06:17,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:06:17,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:06:17,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:06:17,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:06:17,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:06:17,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:06:17,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:06:17,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:06:17,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:06:17,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:06:17,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:06:17,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:06:17,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:06:17,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:06:17,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:06:17,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:06:17,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:06:17,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:06:17,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:06:17,534 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:06:17,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:06:17,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:06:17,535 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:06:17,535 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:06:17,536 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:06:17,536 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:06:17,536 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:06:17,536 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:06:17,536 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:06:17,537 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:06:17,537 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:06:17,537 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:06:17,537 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:06:17,538 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:06:17,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:06:17,539 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:06:17,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:06:17,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:06:17,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:06:17,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:06:17,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:06:17,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:06:17,540 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:06:17,541 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:06:17,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:06:17,541 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:06:17,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:06:17,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:06:17,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:06:17,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:06:17,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:17,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:06:17,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:06:17,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:06:17,543 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:06:17,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:06:17,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:06:17,544 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:06:17,544 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:06:17,545 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_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d3da3677db9bcac0085ed27f307e82ca02a6621 [2020-11-22 13:06:17,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:06:17,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:06:17,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:06:17,819 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:06:17,820 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:06:17,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1052d.c [2020-11-22 13:06:17,887 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/data/67962b807/0fd2c9c527c949af9ddce281507f4a96/FLAGa62c74959 [2020-11-22 13:06:18,375 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:06:18,375 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/sv-benchmarks/c/float-newlib/double_req_bl_1052d.c [2020-11-22 13:06:18,390 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/data/67962b807/0fd2c9c527c949af9ddce281507f4a96/FLAGa62c74959 [2020-11-22 13:06:18,749 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/data/67962b807/0fd2c9c527c949af9ddce281507f4a96 [2020-11-22 13:06:18,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:06:18,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:06:18,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:18,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:06:18,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:06:18,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:18" (1/1) ... [2020-11-22 13:06:18,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@714aeff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:18, skipping insertion in model container [2020-11-22 13:06:18,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:18" (1/1) ... [2020-11-22 13:06:18,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:06:18,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:18,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:18,969 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:06:19,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:19,074 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:06:19,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19 WrapperNode [2020-11-22 13:06:19,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:19,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:19,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:06:19,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:06:19,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:19,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:06:19,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:06:19,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:06:19,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:06:19,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:06:19,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:06:19,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:06:19,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/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 [2020-11-22 13:06:19,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:06:19,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:06:19,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-22 13:06:19,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 13:06:19,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-22 13:06:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:06:19,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:06:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 13:06:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:06:19,920 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:06:19,921 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-22 13:06:19,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:19 BoogieIcfgContainer [2020-11-22 13:06:19,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:06:19,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:06:19,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:06:19,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:06:19,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:06:18" (1/3) ... [2020-11-22 13:06:19,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de95cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:19, skipping insertion in model container [2020-11-22 13:06:19,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (2/3) ... [2020-11-22 13:06:19,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de95cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:19, skipping insertion in model container [2020-11-22 13:06:19,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:19" (3/3) ... [2020-11-22 13:06:19,928 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052d.c [2020-11-22 13:06:19,936 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:06:19,941 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:06:19,951 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:06:19,974 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:06:19,974 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:06:19,975 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:06:19,975 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:06:19,975 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:06:19,975 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:06:19,975 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:06:19,975 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:06:19,987 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-11-22 13:06:19,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 13:06:19,992 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:19,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:19,992 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:19,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:19,998 INFO L82 PathProgramCache]: Analyzing trace with hash 271173404, now seen corresponding path program 1 times [2020-11-22 13:06:20,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:20,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705504018] [2020-11-22 13:06:20,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:20,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:20,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705504018] [2020-11-22 13:06:20,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:20,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:06:20,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347618160] [2020-11-22 13:06:20,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:06:20,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:20,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:06:20,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:06:20,175 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-11-22 13:06:20,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:20,194 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2020-11-22 13:06:20,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:06:20,196 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-22 13:06:20,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:20,210 INFO L225 Difference]: With dead ends: 43 [2020-11-22 13:06:20,210 INFO L226 Difference]: Without dead ends: 20 [2020-11-22 13:06:20,213 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 [2020-11-22 13:06:20,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-22 13:06:20,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-22 13:06:20,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-22 13:06:20,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2020-11-22 13:06:20,253 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 9 [2020-11-22 13:06:20,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:20,253 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2020-11-22 13:06:20,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:06:20,254 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2020-11-22 13:06:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:06:20,255 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:20,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:20,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:06:20,255 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:20,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:20,259 INFO L82 PathProgramCache]: Analyzing trace with hash -710518883, now seen corresponding path program 1 times [2020-11-22 13:06:20,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:20,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131532313] [2020-11-22 13:06:20,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:06:20,383 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:06:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:06:20,449 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:06:20,485 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:06:20,485 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:06:20,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:06:20,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:06:20 BoogieIcfgContainer [2020-11-22 13:06:20,525 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:06:20,526 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:06:20,526 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:06:20,527 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:06:20,527 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:19" (3/4) ... [2020-11-22 13:06:20,531 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 13:06:20,531 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:06:20,535 INFO L168 Benchmark]: Toolchain (without parser) took 1779.95 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 65.9 MB in the beginning and 102.0 MB in the end (delta: -36.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:20,535 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 94.4 MB. Free memory is still 53.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:20,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.53 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 65.9 MB in the beginning and 106.3 MB in the end (delta: -40.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:20,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.57 ms. Allocated memory is still 130.0 MB. Free memory was 106.3 MB in the beginning and 104.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:20,539 INFO L168 Benchmark]: Boogie Preprocessor took 34.08 ms. Allocated memory is still 130.0 MB. Free memory was 104.2 MB in the beginning and 103.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:20,540 INFO L168 Benchmark]: RCFGBuilder took 764.15 ms. Allocated memory is still 130.0 MB. Free memory was 102.7 MB in the beginning and 61.7 MB in the end (delta: 41.0 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:20,541 INFO L168 Benchmark]: TraceAbstraction took 602.41 ms. Allocated memory is still 130.0 MB. Free memory was 61.1 MB in the beginning and 102.0 MB in the end (delta: -40.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:20,541 INFO L168 Benchmark]: Witness Printer took 5.56 ms. Allocated memory is still 130.0 MB. Free memory is still 102.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:20,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 94.4 MB. Free memory is still 53.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 320.53 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 65.9 MB in the beginning and 106.3 MB in the end (delta: -40.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.57 ms. Allocated memory is still 130.0 MB. Free memory was 106.3 MB in the beginning and 104.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.08 ms. Allocated memory is still 130.0 MB. Free memory was 104.2 MB in the beginning and 103.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 764.15 ms. Allocated memory is still 130.0 MB. Free memory was 102.7 MB in the beginning and 61.7 MB in the end (delta: 41.0 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 602.41 ms. Allocated memory is still 130.0 MB. Free memory was 61.1 MB in the beginning and 102.0 MB in the end (delta: -40.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.56 ms. Allocated memory is still 130.0 MB. Free memory is still 102.0 MB. 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 104, overapproximation of bitwiseAnd at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51. Possible FailurePath: [L16] static const double huge_floor = 1.0e300; [L100] double x = 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND FALSE !(j0 < 20) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L49] COND TRUE j0 > 51 [L50] COND FALSE !(j0 == 0x400) [L53] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L101] double res = floor_double(x); [L104] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L3] __assert_fail("0", "double_req_bl_1052d.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 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=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 [2020-11-22 13:06:23,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:06:23,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:06:23,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:06:23,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:06:23,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:06:23,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:06:23,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:06:23,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:06:23,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:06:23,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:06:23,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:06:23,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:06:23,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:06:23,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:06:23,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:06:23,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:06:23,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:06:23,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:06:23,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:06:23,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:06:23,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:06:23,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:06:23,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:06:23,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:06:23,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:06:23,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:06:23,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:06:23,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:06:23,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:06:23,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:06:23,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:06:23,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:06:23,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:06:23,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:06:23,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:06:23,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:06:23,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:06:23,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:06:23,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:06:23,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:06:23,216 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:06:23,259 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:06:23,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:06:23,262 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:06:23,262 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:06:23,263 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:06:23,263 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:06:23,263 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:06:23,263 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:06:23,263 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:06:23,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:06:23,266 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:06:23,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:06:23,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:06:23,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:06:23,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:06:23,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:06:23,267 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:06:23,267 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:06:23,268 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:06:23,268 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:06:23,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:06:23,268 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:06:23,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:06:23,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:06:23,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:06:23,269 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:06:23,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:06:23,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:23,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:06:23,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:06:23,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:06:23,271 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:06:23,271 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:06:23,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:06:23,271 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:06:23,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:06:23,272 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_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d3da3677db9bcac0085ed27f307e82ca02a6621 [2020-11-22 13:06:23,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:06:23,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:06:23,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:06:23,648 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:06:23,648 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:06:23,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1052d.c [2020-11-22 13:06:23,723 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/data/9c83b5f8b/a9887cf8756d45c7855e34026b0f96b0/FLAGfa8865d44 [2020-11-22 13:06:24,203 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:06:24,204 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/sv-benchmarks/c/float-newlib/double_req_bl_1052d.c [2020-11-22 13:06:24,211 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/data/9c83b5f8b/a9887cf8756d45c7855e34026b0f96b0/FLAGfa8865d44 [2020-11-22 13:06:24,549 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/data/9c83b5f8b/a9887cf8756d45c7855e34026b0f96b0 [2020-11-22 13:06:24,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:06:24,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:06:24,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:24,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:06:24,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:06:24,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c1b3ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24, skipping insertion in model container [2020-11-22 13:06:24,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:06:24,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:24,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:24,783 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:06:24,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:24,886 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:06:24,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24 WrapperNode [2020-11-22 13:06:24,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:24,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:24,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:06:24,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:06:24,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:24,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:06:24,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:06:24,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:06:24,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:06:24,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:06:24,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:06:24,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:06:24,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/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 [2020-11-22 13:06:25,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-22 13:06:25,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-22 13:06:25,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:06:25,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:06:25,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-22 13:06:25,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:06:25,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:06:25,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-22 13:06:25,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:06:26,660 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:06:26,660 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-22 13:06:26,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:26 BoogieIcfgContainer [2020-11-22 13:06:26,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:06:26,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:06:26,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:06:26,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:06:26,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:06:24" (1/3) ... [2020-11-22 13:06:26,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fda604b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:26, skipping insertion in model container [2020-11-22 13:06:26,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (2/3) ... [2020-11-22 13:06:26,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fda604b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:26, skipping insertion in model container [2020-11-22 13:06:26,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:26" (3/3) ... [2020-11-22 13:06:26,670 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052d.c [2020-11-22 13:06:26,681 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:06:26,685 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:06:26,694 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:06:26,714 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:06:26,714 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:06:26,714 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:06:26,715 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:06:26,715 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:06:26,715 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:06:26,715 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:06:26,715 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:06:26,726 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-11-22 13:06:26,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-22 13:06:26,730 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:26,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:26,731 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:26,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:26,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1930029915, now seen corresponding path program 1 times [2020-11-22 13:06:26,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:26,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685778984] [2020-11-22 13:06:26,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/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 [2020-11-22 13:06:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:26,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:06:26,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:26,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:26,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:26,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:26,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685778984] [2020-11-22 13:06:26,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:26,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:06:26,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882223661] [2020-11-22 13:06:26,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:06:26,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:26,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:06:26,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:06:26,951 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2020-11-22 13:06:26,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:26,969 INFO L93 Difference]: Finished difference Result 75 states and 119 transitions. [2020-11-22 13:06:26,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:06:26,970 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-22 13:06:26,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:26,994 INFO L225 Difference]: With dead ends: 75 [2020-11-22 13:06:26,994 INFO L226 Difference]: Without dead ends: 35 [2020-11-22 13:06:26,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:06:27,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-22 13:06:27,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-22 13:06:27,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-22 13:06:27,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2020-11-22 13:06:27,029 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 11 [2020-11-22 13:06:27,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:27,029 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2020-11-22 13:06:27,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:06:27,029 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2020-11-22 13:06:27,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 13:06:27,030 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:27,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:27,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:06:27,238 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:27,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:27,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1310108990, now seen corresponding path program 1 times [2020-11-22 13:06:27,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:27,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390015097] [2020-11-22 13:06:27,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/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 [2020-11-22 13:06:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:27,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 13:06:27,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:27,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:27,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:27,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:27,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390015097] [2020-11-22 13:06:27,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:27,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-22 13:06:27,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85570712] [2020-11-22 13:06:27,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:06:27,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:27,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:06:27,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:06:27,682 INFO L87 Difference]: Start difference. First operand 35 states and 50 transitions. Second operand 8 states. [2020-11-22 13:06:28,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:28,137 INFO L93 Difference]: Finished difference Result 47 states and 62 transitions. [2020-11-22 13:06:28,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:06:28,138 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-11-22 13:06:28,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:28,139 INFO L225 Difference]: With dead ends: 47 [2020-11-22 13:06:28,139 INFO L226 Difference]: Without dead ends: 21 [2020-11-22 13:06:28,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-22 13:06:28,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-22 13:06:28,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-22 13:06:28,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-22 13:06:28,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-22 13:06:28,145 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2020-11-22 13:06:28,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:28,145 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-22 13:06:28,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:06:28,146 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-22 13:06:28,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 13:06:28,146 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:28,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:28,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:06:28,356 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:28,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:28,357 INFO L82 PathProgramCache]: Analyzing trace with hash -649381144, now seen corresponding path program 1 times [2020-11-22 13:06:28,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:28,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768117549] [2020-11-22 13:06:28,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/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 [2020-11-22 13:06:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:28,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-22 13:06:28,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:28,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:28,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:29,524 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-22 13:06:29,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:29,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768117549] [2020-11-22 13:06:29,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:29,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-22 13:06:29,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968984669] [2020-11-22 13:06:29,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:06:29,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:29,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:06:29,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:06:29,719 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2020-11-22 13:06:30,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:30,123 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-11-22 13:06:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:06:30,131 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-22 13:06:30,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:30,132 INFO L225 Difference]: With dead ends: 33 [2020-11-22 13:06:30,132 INFO L226 Difference]: Without dead ends: 21 [2020-11-22 13:06:30,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:06:30,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-22 13:06:30,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-22 13:06:30,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-22 13:06:30,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-11-22 13:06:30,139 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2020-11-22 13:06:30,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:30,140 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-11-22 13:06:30,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:06:30,140 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-11-22 13:06:30,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 13:06:30,141 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:30,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:30,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:06:30,356 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:30,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:30,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1381924140, now seen corresponding path program 1 times [2020-11-22 13:06:30,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:30,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623792452] [2020-11-22 13:06:30,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 13:06:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:30,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:06:30,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:30,572 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 45 treesize of output 39 [2020-11-22 13:06:30,577 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:30,584 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:30,585 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:06:30,589 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:30,590 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:06:30,590 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2020-11-22 13:06:30,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:30,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:30,684 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 45 treesize of output 39 [2020-11-22 13:06:30,687 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:30,690 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:30,691 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:06:30,694 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:30,694 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:06:30,695 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2020-11-22 13:06:30,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:30,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623792452] [2020-11-22 13:06:30,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:30,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-11-22 13:06:30,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360923381] [2020-11-22 13:06:30,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-22 13:06:30,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:30,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-22 13:06:30,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:06:30,721 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 9 states. [2020-11-22 13:06:31,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:31,017 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-11-22 13:06:31,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:06:31,019 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-11-22 13:06:31,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:31,020 INFO L225 Difference]: With dead ends: 24 [2020-11-22 13:06:31,020 INFO L226 Difference]: Without dead ends: 21 [2020-11-22 13:06:31,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-11-22 13:06:31,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-22 13:06:31,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-22 13:06:31,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-22 13:06:31,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2020-11-22 13:06:31,026 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2020-11-22 13:06:31,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:31,026 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2020-11-22 13:06:31,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-22 13:06:31,027 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-11-22 13:06:31,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-22 13:06:31,027 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:31,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:31,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:06:31,238 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:31,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:31,238 INFO L82 PathProgramCache]: Analyzing trace with hash -2014843095, now seen corresponding path program 1 times [2020-11-22 13:06:31,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:31,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759995947] [2020-11-22 13:06:31,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_035fcd30-ca42-46d1-843e-04ea6b1ccd6d/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 13:06:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:31,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-22 13:06:31,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:31,478 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 45 treesize of output 39 [2020-11-22 13:06:31,482 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:31,488 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:31,489 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:06:31,491 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:31,492 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:06:31,492 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2020-11-22 13:06:31,592 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-22 13:06:31,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:31,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:31,907 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 52 treesize of output 46 [2020-11-22 13:06:31,912 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:31,926 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:31,926 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:06:31,934 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:31,935 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. [2020-11-22 13:06:31,935 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:59, output treesize:29 [2020-11-22 13:06:32,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:32,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759995947] [2020-11-22 13:06:32,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:32,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-11-22 13:06:32,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788277844] [2020-11-22 13:06:32,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-22 13:06:32,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:32,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-22 13:06:32,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-11-22 13:06:32,020 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 16 states. [2020-11-22 13:06:32,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:32,753 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-11-22 13:06:32,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-22 13:06:32,757 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 20 [2020-11-22 13:06:32,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:32,758 INFO L225 Difference]: With dead ends: 21 [2020-11-22 13:06:32,758 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:06:32,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2020-11-22 13:06:32,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:06:32,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:06:32,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:06:32,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:06:32,759 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-22 13:06:32,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:32,759 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:06:32,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-22 13:06:32,760 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:06:32,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:06:32,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:06:32,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:06:33,264 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-11-22 13:06:33,458 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-11-22 13:06:33,592 INFO L274 CegarLoopResult]: For program point L60(lines 60 67) no Hoare annotation was computed. [2020-11-22 13:06:33,592 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-22 13:06:33,592 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-22 13:06:33,592 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:06:33,592 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-22 13:06:33,592 INFO L274 CegarLoopResult]: For program point L28(lines 28 71) no Hoare annotation was computed. [2020-11-22 13:06:33,593 INFO L270 CegarLoopResult]: At program point L78(lines 18 79) the Hoare annotation is: (let ((.cse0 (let ((.cse1 (concat (_ bv0 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (and (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (and (= (bvadd ULTIMATE.start_floor_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) v_skolemized_v_prenex_1_3) (_ bv20 32)))) (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))))) (= ULTIMATE.start_floor_double_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= ~huge_floor~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= ULTIMATE.start_floor_double_~i1~0 (_ bv0 32)) (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (= ULTIMATE.start_floor_double_~i0~0 ((_ extract 63 32) v_skolemized_v_prenex_1_3)))) (= |ULTIMATE.start_floor_double_#res| .cse0))) [2020-11-22 13:06:33,593 INFO L274 CegarLoopResult]: For program point L29(lines 29 48) no Hoare annotation was computed. [2020-11-22 13:06:33,593 INFO L274 CegarLoopResult]: For program point L21-1(lines 21 26) no Hoare annotation was computed. [2020-11-22 13:06:33,593 INFO L270 CegarLoopResult]: At program point L21-2(lines 21 26) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ~huge_floor~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= ULTIMATE.start_floor_double_~x (_ +zero 11 53))) [2020-11-22 13:06:33,593 INFO L274 CegarLoopResult]: For program point L21-3(lines 21 26) no Hoare annotation was computed. [2020-11-22 13:06:33,593 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-11-22 13:06:33,593 INFO L274 CegarLoopResult]: For program point L104-2(lines 104 107) no Hoare annotation was computed. [2020-11-22 13:06:33,593 INFO L274 CegarLoopResult]: For program point L30(lines 30 37) no Hoare annotation was computed. [2020-11-22 13:06:33,593 INFO L274 CegarLoopResult]: For program point L72(lines 72 77) no Hoare annotation was computed. [2020-11-22 13:06:33,593 INFO L274 CegarLoopResult]: For program point L72-1(lines 18 79) no Hoare annotation was computed. [2020-11-22 13:06:33,593 INFO L274 CegarLoopResult]: For program point L72-2(lines 72 77) no Hoare annotation was computed. [2020-11-22 13:06:33,593 INFO L274 CegarLoopResult]: For program point L64(lines 64 65) no Hoare annotation was computed. [2020-11-22 13:06:33,593 INFO L274 CegarLoopResult]: For program point L31(lines 31 36) no Hoare annotation was computed. [2020-11-22 13:06:33,593 INFO L274 CegarLoopResult]: For program point L64-2(lines 64 65) no Hoare annotation was computed. [2020-11-22 13:06:33,593 INFO L274 CegarLoopResult]: For program point L56(lines 56 57) no Hoare annotation was computed. [2020-11-22 13:06:33,593 INFO L274 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2020-11-22 13:06:33,594 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-22 13:06:33,594 INFO L270 CegarLoopResult]: At program point L90(lines 81 91) the Hoare annotation is: (let ((.cse0 (let ((.cse2 (concat (_ bv0 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (and |ULTIMATE.start_main_#t~short17| (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (and (= (bvadd ULTIMATE.start_floor_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) v_skolemized_v_prenex_1_3) (_ bv20 32)))) (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))))) (= ULTIMATE.start___signbit_double_~x .cse0) (= .cse0 ULTIMATE.start_main_~res~0) (= ULTIMATE.start_floor_double_~x .cse0) (= ULTIMATE.start_floor_double_~i0~0 ULTIMATE.start_floor_double_~i1~0) (= currentRoundingMode roundNearestTiesToEven) (= ~huge_floor~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= ULTIMATE.start_floor_double_~i1~0 (_ bv0 32)) (= |ULTIMATE.start___signbit_double_#res| (_ bv0 32)) (= |ULTIMATE.start_floor_double_#res| .cse0) (exists ((|v_skolemized_q#valueAsBitvector_5| (_ BitVec 64))) (and (= (let ((.cse1 (concat (_ bv0 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_5|))) (= ULTIMATE.start___signbit_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_5|)))))) [2020-11-22 13:06:33,594 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 13:06:33,594 INFO L274 CegarLoopResult]: For program point L49(lines 49 71) no Hoare annotation was computed. [2020-11-22 13:06:33,594 INFO L274 CegarLoopResult]: For program point L33(lines 33 36) no Hoare annotation was computed. [2020-11-22 13:06:33,594 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:06:33,594 INFO L274 CegarLoopResult]: For program point L58(lines 58 70) no Hoare annotation was computed. [2020-11-22 13:06:33,594 INFO L274 CegarLoopResult]: For program point L50(lines 50 53) no Hoare annotation was computed. [2020-11-22 13:06:33,594 INFO L274 CegarLoopResult]: For program point L42(lines 42 47) no Hoare annotation was computed. [2020-11-22 13:06:33,594 INFO L274 CegarLoopResult]: For program point L59(lines 59 68) no Hoare annotation was computed. [2020-11-22 13:06:33,594 INFO L274 CegarLoopResult]: For program point L59-1(lines 59 68) no Hoare annotation was computed. [2020-11-22 13:06:33,594 INFO L274 CegarLoopResult]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2020-11-22 13:06:33,595 INFO L270 CegarLoopResult]: At program point L84-2(lines 84 88) the Hoare annotation is: (let ((.cse0 (let ((.cse1 (concat (_ bv0 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (and |ULTIMATE.start_main_#t~short17| (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (and (= (bvadd ULTIMATE.start_floor_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) v_skolemized_v_prenex_1_3) (_ bv20 32)))) (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))))) (= ULTIMATE.start___signbit_double_~x .cse0) (= .cse0 ULTIMATE.start_main_~res~0) (= ULTIMATE.start_floor_double_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= ~huge_floor~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= ULTIMATE.start_floor_double_~i1~0 (_ bv0 32)) (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (= ULTIMATE.start_floor_double_~i0~0 ((_ extract 63 32) v_skolemized_v_prenex_1_3)))) (= |ULTIMATE.start_floor_double_#res| .cse0))) [2020-11-22 13:06:33,595 INFO L274 CegarLoopResult]: For program point L84-3(lines 84 88) no Hoare annotation was computed. [2020-11-22 13:06:33,595 INFO L277 CegarLoopResult]: At program point L109(lines 93 110) the Hoare annotation is: true [2020-11-22 13:06:33,595 INFO L274 CegarLoopResult]: For program point L43(lines 43 44) no Hoare annotation was computed. [2020-11-22 13:06:33,595 INFO L274 CegarLoopResult]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2020-11-22 13:06:33,600 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.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) [2020-11-22 13:06:33,613 INFO L168 Benchmark]: Toolchain (without parser) took 9060.27 ms. Allocated memory was 54.5 MB in the beginning and 102.8 MB in the end (delta: 48.2 MB). Free memory was 31.9 MB in the beginning and 55.8 MB in the end (delta: -23.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:33,614 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:33,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.90 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 31.7 MB in the beginning and 59.5 MB in the end (delta: -27.8 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:33,615 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.29 ms. Allocated memory is still 75.5 MB. Free memory was 59.5 MB in the beginning and 57.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:33,616 INFO L168 Benchmark]: Boogie Preprocessor took 37.22 ms. Allocated memory is still 75.5 MB. Free memory was 57.6 MB in the beginning and 55.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:33,616 INFO L168 Benchmark]: RCFGBuilder took 1674.57 ms. Allocated memory is still 75.5 MB. Free memory was 55.8 MB in the beginning and 51.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:33,617 INFO L168 Benchmark]: TraceAbstraction took 6947.53 ms. Allocated memory was 75.5 MB in the beginning and 102.8 MB in the end (delta: 27.3 MB). Free memory was 50.8 MB in the beginning and 55.8 MB in the end (delta: -4.9 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:33,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 332.90 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 31.7 MB in the beginning and 59.5 MB in the end (delta: -27.8 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.29 ms. Allocated memory is still 75.5 MB. Free memory was 59.5 MB in the beginning and 57.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.22 ms. Allocated memory is still 75.5 MB. Free memory was 57.6 MB in the beginning and 55.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1674.57 ms. Allocated memory is still 75.5 MB. Free memory was 55.8 MB in the beginning and 51.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6947.53 ms. Allocated memory was 75.5 MB in the beginning and 102.8 MB in the end (delta: 27.3 MB). Free memory was 50.8 MB in the beginning and 55.8 MB in the end (delta: -4.9 MB). Peak memory consumption was 41.2 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 - 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...