./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI --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 b42939eee3e11712ad53342d1b2656dec849a2d0 ............................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI --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 b42939eee3e11712ad53342d1b2656dec849a2d0 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:28:14,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:28:14,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:28:14,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:28:14,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:28:14,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:28:14,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:28:14,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:28:14,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:28:14,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:28:14,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:28:14,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:28:14,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:28:14,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:28:14,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:28:14,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:28:14,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:28:14,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:28:14,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:28:14,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:28:14,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:28:14,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:28:14,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:28:14,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:28:14,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:28:14,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:28:14,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:28:14,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:28:14,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:28:14,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:28:14,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:28:14,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:28:14,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:28:14,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:28:14,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:28:14,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:28:14,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:28:14,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:28:14,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:28:14,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:28:14,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:28:14,155 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:28:14,183 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:28:14,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:28:14,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:28:14,185 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:28:14,185 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:28:14,185 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:28:14,185 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:28:14,186 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:28:14,186 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:28:14,186 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:28:14,187 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:28:14,187 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:28:14,187 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:28:14,187 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:28:14,188 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:28:14,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:28:14,189 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:28:14,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:28:14,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:28:14,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:28:14,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:28:14,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:28:14,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:28:14,191 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:28:14,191 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:28:14,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:28:14,192 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:28:14,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:28:14,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:28:14,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:28:14,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:28:14,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:28:14,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:28:14,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:28:14,194 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:28:14,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:28:14,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:28:14,195 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:28:14,195 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:28:14,195 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_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b42939eee3e11712ad53342d1b2656dec849a2d0 [2021-10-11 02:28:14,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:28:14,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:28:14,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:28:14,512 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:28:14,512 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:28:14,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2021-10-11 02:28:14,609 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/data/71d314fc8/bc8c6e05ac7c492696f9b25b3afbff15/FLAG834a956f4 [2021-10-11 02:28:15,090 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:28:15,091 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2021-10-11 02:28:15,098 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/data/71d314fc8/bc8c6e05ac7c492696f9b25b3afbff15/FLAG834a956f4 [2021-10-11 02:28:15,456 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/data/71d314fc8/bc8c6e05ac7c492696f9b25b3afbff15 [2021-10-11 02:28:15,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:28:15,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:28:15,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:15,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:28:15,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:28:15,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:15" (1/1) ... [2021-10-11 02:28:15,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d2e8154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:15, skipping insertion in model container [2021-10-11 02:28:15,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:15" (1/1) ... [2021-10-11 02:28:15,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:28:15,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:28:15,711 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/sv-benchmarks/c/float-newlib/double_req_bl_1051.c[2106,2119] [2021-10-11 02:28:15,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:15,730 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:28:15,758 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/sv-benchmarks/c/float-newlib/double_req_bl_1051.c[2106,2119] [2021-10-11 02:28:15,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:15,775 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:28:15,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:15 WrapperNode [2021-10-11 02:28:15,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:15,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:15,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:28:15,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:28:15,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:15" (1/1) ... [2021-10-11 02:28:15,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:15" (1/1) ... [2021-10-11 02:28:15,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:15,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:28:15,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:28:15,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:28:15,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:15" (1/1) ... [2021-10-11 02:28:15,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:15" (1/1) ... [2021-10-11 02:28:15,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:15" (1/1) ... [2021-10-11 02:28:15,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:15" (1/1) ... [2021-10-11 02:28:15,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:15" (1/1) ... [2021-10-11 02:28:15,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:15" (1/1) ... [2021-10-11 02:28:15,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:15" (1/1) ... [2021-10-11 02:28:15,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:28:15,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:28:15,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:28:15,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:28:15,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:15" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:28:16,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:28:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:28:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 02:28:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:28:16,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 02:28:16,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:28:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:28:16,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:28:16,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:28:16,859 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:28:16,859 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-11 02:28:16,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:16 BoogieIcfgContainer [2021-10-11 02:28:16,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:28:16,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:28:16,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:28:16,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:28:16,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:28:15" (1/3) ... [2021-10-11 02:28:16,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bd292a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:16, skipping insertion in model container [2021-10-11 02:28:16,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:15" (2/3) ... [2021-10-11 02:28:16,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bd292a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:16, skipping insertion in model container [2021-10-11 02:28:16,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:16" (3/3) ... [2021-10-11 02:28:16,871 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2021-10-11 02:28:16,885 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:28:16,889 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:28:16,900 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:28:16,925 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:28:16,925 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:28:16,925 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:28:16,926 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:28:16,926 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:28:16,926 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:28:16,926 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:28:16,926 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:28:16,939 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2021-10-11 02:28:16,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:28:16,944 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:16,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:16,945 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:16,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:16,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1371057062, now seen corresponding path program 1 times [2021-10-11 02:28:16,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:16,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640355128] [2021-10-11 02:28:16,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:17,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:17,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640355128] [2021-10-11 02:28:17,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:17,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:28:17,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619403472] [2021-10-11 02:28:17,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:28:17,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:17,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:28:17,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:28:17,139 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2021-10-11 02:28:17,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:17,155 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2021-10-11 02:28:17,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:28:17,156 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-10-11 02:28:17,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:17,166 INFO L225 Difference]: With dead ends: 35 [2021-10-11 02:28:17,166 INFO L226 Difference]: Without dead ends: 16 [2021-10-11 02:28:17,169 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 [2021-10-11 02:28:17,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-11 02:28:17,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-11 02:28:17,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 02:28:17,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-10-11 02:28:17,203 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 8 [2021-10-11 02:28:17,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:17,203 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-10-11 02:28:17,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:28:17,203 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-10-11 02:28:17,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:28:17,204 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:17,204 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:17,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:28:17,204 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:17,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:17,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1275913669, now seen corresponding path program 1 times [2021-10-11 02:28:17,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:17,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929083985] [2021-10-11 02:28:17,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:28:17,272 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:28:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:28:17,342 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:28:17,376 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:28:17,377 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:28:17,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:28:17,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:28:17 BoogieIcfgContainer [2021-10-11 02:28:17,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:28:17,417 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:28:17,418 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:28:17,418 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:28:17,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:16" (3/4) ... [2021-10-11 02:28:17,422 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:28:17,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:28:17,427 INFO L168 Benchmark]: Toolchain (without parser) took 1963.43 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 63.7 MB in the beginning and 69.8 MB in the end (delta: -6.1 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:17,428 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 98.6 MB. Free memory was 69.5 MB in the beginning and 69.5 MB in the end (delta: 31.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:17,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.91 ms. Allocated memory is still 98.6 MB. Free memory was 63.5 MB in the beginning and 72.7 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:17,431 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.95 ms. Allocated memory is still 98.6 MB. Free memory was 72.7 MB in the beginning and 70.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:17,431 INFO L168 Benchmark]: Boogie Preprocessor took 72.56 ms. Allocated memory is still 98.6 MB. Free memory was 70.7 MB in the beginning and 69.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:17,433 INFO L168 Benchmark]: RCFGBuilder took 920.08 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 69.4 MB in the beginning and 93.5 MB in the end (delta: -24.1 MB). Peak memory consumption was 40.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:17,435 INFO L168 Benchmark]: TraceAbstraction took 552.93 ms. Allocated memory is still 121.6 MB. Free memory was 92.8 MB in the beginning and 70.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:17,436 INFO L168 Benchmark]: Witness Printer took 5.18 ms. Allocated memory is still 121.6 MB. Free memory was 70.4 MB in the beginning and 69.8 MB in the end (delta: 651.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:17,449 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 98.6 MB. Free memory was 69.5 MB in the beginning and 69.5 MB in the end (delta: 31.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 308.91 ms. Allocated memory is still 98.6 MB. Free memory was 63.5 MB in the beginning and 72.7 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.95 ms. Allocated memory is still 98.6 MB. Free memory was 72.7 MB in the beginning and 70.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.56 ms. Allocated memory is still 98.6 MB. Free memory was 70.7 MB in the beginning and 69.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 920.08 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 69.4 MB in the beginning and 93.5 MB in the end (delta: -24.1 MB). Peak memory consumption was 40.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 552.93 ms. Allocated memory is still 121.6 MB. Free memory was 92.8 MB in the beginning and 70.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 5.18 ms. Allocated memory is still 121.6 MB. Free memory was 70.4 MB in the beginning and 69.8 MB in the end (delta: 651.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 95]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 82, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51, overapproximation of bitwiseAnd at line 27. Possible FailurePath: [L16] static const double huge_floor = 1.0e300; [L90] double x = 0.0 / 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 TRUE j0 == 0x400 [L51] return x + x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double res = floor_double(x); [L82] return x != x; [L94] COND TRUE !isnan_double(res) [L95] reach_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 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=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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 0.2.0-7b2dab5 [2021-10-11 02:28:20,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:28:20,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:28:20,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:28:20,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:28:20,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:28:20,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:28:20,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:28:20,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:28:20,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:28:20,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:28:20,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:28:20,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:28:20,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:28:20,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:28:20,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:28:20,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:28:20,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:28:20,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:28:20,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:28:20,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:28:20,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:28:20,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:28:20,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:28:20,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:28:20,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:28:20,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:28:20,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:28:20,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:28:20,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:28:20,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:28:20,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:28:20,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:28:20,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:28:20,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:28:20,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:28:20,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:28:20,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:28:20,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:28:20,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:28:20,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:28:20,252 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:28:20,298 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:28:20,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:28:20,300 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:28:20,300 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:28:20,301 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:28:20,301 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:28:20,301 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:28:20,301 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:28:20,302 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:28:20,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:28:20,305 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:28:20,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:28:20,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:28:20,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:28:20,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:28:20,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:28:20,306 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:28:20,306 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:28:20,307 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:28:20,307 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:28:20,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:28:20,307 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:28:20,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:28:20,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:28:20,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:28:20,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:28:20,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:28:20,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:28:20,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:28:20,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:28:20,309 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:28:20,310 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:28:20,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:28:20,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:28:20,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:28:20,311 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_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b42939eee3e11712ad53342d1b2656dec849a2d0 [2021-10-11 02:28:20,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:28:20,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:28:20,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:28:20,797 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:28:20,798 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:28:20,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2021-10-11 02:28:20,888 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/data/d44d61440/9dbcdd29ce7e41e8acb927e12a556cce/FLAG595cf5835 [2021-10-11 02:28:21,436 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:28:21,437 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2021-10-11 02:28:21,448 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/data/d44d61440/9dbcdd29ce7e41e8acb927e12a556cce/FLAG595cf5835 [2021-10-11 02:28:21,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/data/d44d61440/9dbcdd29ce7e41e8acb927e12a556cce [2021-10-11 02:28:21,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:28:21,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:28:21,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:21,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:28:21,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:28:21,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:21" (1/1) ... [2021-10-11 02:28:21,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2477698a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:21, skipping insertion in model container [2021-10-11 02:28:21,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:21" (1/1) ... [2021-10-11 02:28:21,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:28:21,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:28:21,966 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/sv-benchmarks/c/float-newlib/double_req_bl_1051.c[2106,2119] [2021-10-11 02:28:21,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:21,982 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:28:22,010 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/sv-benchmarks/c/float-newlib/double_req_bl_1051.c[2106,2119] [2021-10-11 02:28:22,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:22,077 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:28:22,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:22 WrapperNode [2021-10-11 02:28:22,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:22,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:22,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:28:22,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:28:22,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:22" (1/1) ... [2021-10-11 02:28:22,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:22" (1/1) ... [2021-10-11 02:28:22,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:22,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:28:22,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:28:22,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:28:22,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:22" (1/1) ... [2021-10-11 02:28:22,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:22" (1/1) ... [2021-10-11 02:28:22,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:22" (1/1) ... [2021-10-11 02:28:22,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:22" (1/1) ... [2021-10-11 02:28:22,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:22" (1/1) ... [2021-10-11 02:28:22,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:22" (1/1) ... [2021-10-11 02:28:22,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:22" (1/1) ... [2021-10-11 02:28:22,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:28:22,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:28:22,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:28:22,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:28:22,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:22" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:28:22,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-11 02:28:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-11 02:28:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:28:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:28:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:28:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:28:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:28:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:28:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:28:24,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:28:24,767 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-11 02:28:24,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:24 BoogieIcfgContainer [2021-10-11 02:28:24,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:28:24,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:28:24,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:28:24,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:28:24,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:28:21" (1/3) ... [2021-10-11 02:28:24,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b006ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:24, skipping insertion in model container [2021-10-11 02:28:24,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:22" (2/3) ... [2021-10-11 02:28:24,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b006ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:24, skipping insertion in model container [2021-10-11 02:28:24,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:24" (3/3) ... [2021-10-11 02:28:24,779 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2021-10-11 02:28:24,794 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:28:24,801 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:28:24,812 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:28:24,838 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:28:24,838 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:28:24,838 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:28:24,838 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:28:24,839 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:28:24,839 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:28:24,839 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:28:24,839 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:28:24,852 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2021-10-11 02:28:24,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:28:24,858 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:24,859 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:24,859 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:24,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:24,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2021-10-11 02:28:24,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:28:24,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282491029] [2021-10-11 02:28:24,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:28:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:25,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:28:25,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:28:25,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:25,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:28:25,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282491029] [2021-10-11 02:28:25,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:25,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:28:25,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164113645] [2021-10-11 02:28:25,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:28:25,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:28:25,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:28:25,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:28:25,068 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2021-10-11 02:28:25,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:25,086 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2021-10-11 02:28:25,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:28:25,087 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2021-10-11 02:28:25,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:25,103 INFO L225 Difference]: With dead ends: 66 [2021-10-11 02:28:25,103 INFO L226 Difference]: Without dead ends: 31 [2021-10-11 02:28:25,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:28:25,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-11 02:28:25,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-11 02:28:25,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-10-11 02:28:25,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2021-10-11 02:28:25,138 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2021-10-11 02:28:25,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:25,139 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2021-10-11 02:28:25,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:28:25,139 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2021-10-11 02:28:25,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:28:25,140 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:25,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:25,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:28:25,354 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:25,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:25,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2021-10-11 02:28:25,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:28:25,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952575937] [2021-10-11 02:28:25,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:28:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:25,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 02:28:25,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:28:25,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:25,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:28:25,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952575937] [2021-10-11 02:28:25,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:25,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:28:25,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210049709] [2021-10-11 02:28:25,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:28:25,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:28:25,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:28:25,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:28:25,735 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 6 states. [2021-10-11 02:28:26,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:26,818 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2021-10-11 02:28:26,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:28:26,819 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2021-10-11 02:28:26,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:26,820 INFO L225 Difference]: With dead ends: 42 [2021-10-11 02:28:26,820 INFO L226 Difference]: Without dead ends: 21 [2021-10-11 02:28:26,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:28:26,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-11 02:28:26,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-10-11 02:28:26,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-10-11 02:28:26,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-10-11 02:28:26,837 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2021-10-11 02:28:26,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:26,841 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-11 02:28:26,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:28:26,841 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-10-11 02:28:26,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 02:28:26,843 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:26,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:27,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:28:27,047 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:27,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:27,048 INFO L82 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2021-10-11 02:28:27,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:28:27,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1280964518] [2021-10-11 02:28:27,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:28:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:27,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 02:28:27,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:28:27,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:27,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:28:27,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1280964518] [2021-10-11 02:28:27,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:27,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:28:27,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097480593] [2021-10-11 02:28:27,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:28:27,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:28:27,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:28:27,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:28:27,500 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 5 states. [2021-10-11 02:28:27,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:27,780 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-11 02:28:27,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:28:27,781 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-10-11 02:28:27,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:27,781 INFO L225 Difference]: With dead ends: 21 [2021-10-11 02:28:27,781 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:28:27,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:28:27,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:28:27,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:28:27,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:28:27,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:28:27,783 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-11 02:28:27,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:27,783 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:28:27,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:28:27,783 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:28:27,784 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:28:27,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:28:27,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:28:28,111 INFO L262 CegarLoopResult]: For program point L60(lines 60 67) no Hoare annotation was computed. [2021-10-11 02:28:28,111 INFO L262 CegarLoopResult]: For program point L94(lines 94 97) no Hoare annotation was computed. [2021-10-11 02:28:28,112 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:28:28,112 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:28:28,112 INFO L262 CegarLoopResult]: For program point L28(lines 28 71) no Hoare annotation was computed. [2021-10-11 02:28:28,112 INFO L258 CegarLoopResult]: At program point L78(lines 18 79) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_floor_double_~x)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start_floor_double_#res|))) [2021-10-11 02:28:28,112 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-11 02:28:28,112 INFO L262 CegarLoopResult]: For program point L29(lines 29 48) no Hoare annotation was computed. [2021-10-11 02:28:28,112 INFO L262 CegarLoopResult]: For program point L21-1(lines 21 26) no Hoare annotation was computed. [2021-10-11 02:28:28,112 INFO L258 CegarLoopResult]: At program point L21-2(lines 21 26) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_floor_double_~x)) [2021-10-11 02:28:28,112 INFO L262 CegarLoopResult]: For program point L21-3(lines 21 26) no Hoare annotation was computed. [2021-10-11 02:28:28,113 INFO L262 CegarLoopResult]: For program point L30(lines 30 37) no Hoare annotation was computed. [2021-10-11 02:28:28,113 INFO L262 CegarLoopResult]: For program point L72(lines 72 77) no Hoare annotation was computed. [2021-10-11 02:28:28,113 INFO L262 CegarLoopResult]: For program point L72-1(lines 18 79) no Hoare annotation was computed. [2021-10-11 02:28:28,113 INFO L262 CegarLoopResult]: For program point L72-2(lines 72 77) no Hoare annotation was computed. [2021-10-11 02:28:28,113 INFO L262 CegarLoopResult]: For program point L64(lines 64 65) no Hoare annotation was computed. [2021-10-11 02:28:28,113 INFO L262 CegarLoopResult]: For program point L31(lines 31 36) no Hoare annotation was computed. [2021-10-11 02:28:28,113 INFO L262 CegarLoopResult]: For program point L64-2(lines 64 65) no Hoare annotation was computed. [2021-10-11 02:28:28,113 INFO L262 CegarLoopResult]: For program point L56(lines 56 57) no Hoare annotation was computed. [2021-10-11 02:28:28,113 INFO L262 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-10-11 02:28:28,113 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:28:28,114 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2021-10-11 02:28:28,114 INFO L258 CegarLoopResult]: At program point L82(line 82) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_floor_double_~x)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start_floor_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2021-10-11 02:28:28,114 INFO L262 CegarLoopResult]: For program point L49(lines 49 71) no Hoare annotation was computed. [2021-10-11 02:28:28,114 INFO L265 CegarLoopResult]: At program point L99(lines 84 100) the Hoare annotation is: true [2021-10-11 02:28:28,114 INFO L262 CegarLoopResult]: For program point L33(lines 33 36) no Hoare annotation was computed. [2021-10-11 02:28:28,114 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:28:28,114 INFO L262 CegarLoopResult]: For program point L58(lines 58 70) no Hoare annotation was computed. [2021-10-11 02:28:28,114 INFO L262 CegarLoopResult]: For program point L50(lines 50 53) no Hoare annotation was computed. [2021-10-11 02:28:28,114 INFO L262 CegarLoopResult]: For program point L42(lines 42 47) no Hoare annotation was computed. [2021-10-11 02:28:28,115 INFO L262 CegarLoopResult]: For program point L59(lines 59 68) no Hoare annotation was computed. [2021-10-11 02:28:28,115 INFO L262 CegarLoopResult]: For program point L59-1(lines 59 68) no Hoare annotation was computed. [2021-10-11 02:28:28,115 INFO L262 CegarLoopResult]: For program point L43(lines 43 44) no Hoare annotation was computed. [2021-10-11 02:28:28,115 INFO L262 CegarLoopResult]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2021-10-11 02:28:28,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,122 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,129 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,129 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,131 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,131 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,131 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,132 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,132 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:28:28 BoogieIcfgContainer [2021-10-11 02:28:28,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:28:28,135 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:28:28,135 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:28:28,135 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:28:28,135 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:24" (3/4) ... [2021-10-11 02:28:28,139 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:28:28,150 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-11 02:28:28,151 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-11 02:28:28,151 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:28:28,151 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:28:28,177 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2021-10-11 02:28:28,178 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) [2021-10-11 02:28:28,179 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result)) && 1bv32 == \result [2021-10-11 02:28:28,206 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7f2829-6a31-46c5-a595-bd1e465e1332/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:28:28,206 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:28:28,208 INFO L168 Benchmark]: Toolchain (without parser) took 6430.05 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 36.7 MB in the beginning and 63.2 MB in the end (delta: -26.5 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:28,209 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 58.7 MB. Free memory was 40.2 MB in the beginning and 40.2 MB in the end (delta: 44.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:28,209 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.45 ms. Allocated memory is still 58.7 MB. Free memory was 36.4 MB in the beginning and 42.2 MB in the end (delta: -5.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:28,210 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.64 ms. Allocated memory is still 58.7 MB. Free memory was 42.0 MB in the beginning and 40.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:28,210 INFO L168 Benchmark]: Boogie Preprocessor took 32.45 ms. Allocated memory is still 58.7 MB. Free memory was 40.3 MB in the beginning and 38.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:28,211 INFO L168 Benchmark]: RCFGBuilder took 2579.48 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 38.6 MB in the beginning and 59.1 MB in the end (delta: -20.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:28,211 INFO L168 Benchmark]: TraceAbstraction took 3362.75 ms. Allocated memory is still 81.8 MB. Free memory was 58.5 MB in the beginning and 32.6 MB in the end (delta: 25.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:28,212 INFO L168 Benchmark]: Witness Printer took 71.96 ms. Allocated memory is still 81.8 MB. Free memory was 32.6 MB in the beginning and 63.2 MB in the end (delta: -30.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:28,215 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 58.7 MB. Free memory was 40.2 MB in the beginning and 40.2 MB in the end (delta: 44.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 299.45 ms. Allocated memory is still 58.7 MB. Free memory was 36.4 MB in the beginning and 42.2 MB in the end (delta: -5.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.64 ms. Allocated memory is still 58.7 MB. Free memory was 42.0 MB in the beginning and 40.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.45 ms. Allocated memory is still 58.7 MB. Free memory was 40.3 MB in the beginning and 38.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2579.48 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 38.6 MB in the beginning and 59.1 MB in the end (delta: -20.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3362.75 ms. Allocated memory is still 81.8 MB. Free memory was 58.5 MB in the beginning and 32.6 MB in the end (delta: 25.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. * Witness Printer took 71.96 ms. Allocated memory is still 81.8 MB. Free memory was 32.6 MB in the beginning and 63.2 MB in the end (delta: -30.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 95]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 82]: Loop Invariant [2021-10-11 02:28:28,221 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,222 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,222 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,223 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result)) && 1bv32 == \result - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant [2021-10-11 02:28:28,223 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,223 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 18]: Loop Invariant [2021-10-11 02:28:28,224 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,224 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,224 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:28:28,224 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 25 SDslu, 58 SDs, 0 SdLazy, 47 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 41 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 11 QuantifiedInterpolants, 1805 SizeOfPredicates, 16 NumberOfNonLiveVariables, 145 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 proved your program to be correct! Received shutdown request...