./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG --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 f4e9a719a3106c16c930419cff190e7ac0626fe0942a2ec34e31771419d648d5 ...................................................................................................................................................................................................................................................................................................................................... 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_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG --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 f4e9a719a3106c16c930419cff190e7ac0626fe0942a2ec34e31771419d648d5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:04:27,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:04:27,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:04:27,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:04:27,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:04:27,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:04:27,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:04:27,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:04:27,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:04:27,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:04:27,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:04:27,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:04:27,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:04:27,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:04:27,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:04:27,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:04:27,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:04:27,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:04:27,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:04:27,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:04:27,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:04:27,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:04:27,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:04:27,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:04:27,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:04:27,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:04:27,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:04:27,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:04:27,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:04:27,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:04:27,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:04:27,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:04:27,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:04:27,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:04:27,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:04:27,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:04:27,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:04:27,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:04:27,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:04:27,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:04:27,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:04:27,205 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:04:27,230 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:04:27,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:04:27,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:04:27,231 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:04:27,231 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:04:27,231 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:04:27,232 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:04:27,232 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:04:27,232 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:04:27,232 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:04:27,233 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:04:27,233 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:04:27,233 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:04:27,233 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:04:27,234 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:04:27,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:04:27,235 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:04:27,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:04:27,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:04:27,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:04:27,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:04:27,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:04:27,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:04:27,236 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:04:27,236 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:04:27,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:04:27,237 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:04:27,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:04:27,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:04:27,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:04:27,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:04:27,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:04:27,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:04:27,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:04:27,239 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:04:27,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:04:27,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:04:27,239 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:04:27,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:04:27,240 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_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4e9a719a3106c16c930419cff190e7ac0626fe0942a2ec34e31771419d648d5 [2021-10-29 05:04:27,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:04:27,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:04:27,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:04:27,510 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:04:27,511 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:04:27,512 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2021-10-29 05:04:27,605 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/data/2b1a1dab8/7bbee3dbb0d54861a1a8f9abd2aba031/FLAGf529c5174 [2021-10-29 05:04:28,107 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:04:28,108 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2021-10-29 05:04:28,115 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/data/2b1a1dab8/7bbee3dbb0d54861a1a8f9abd2aba031/FLAGf529c5174 [2021-10-29 05:04:28,433 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/data/2b1a1dab8/7bbee3dbb0d54861a1a8f9abd2aba031 [2021-10-29 05:04:28,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:04:28,446 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:04:28,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:04:28,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:04:28,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:04:28,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:04:28" (1/1) ... [2021-10-29 05:04:28,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@257cf077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:28, skipping insertion in model container [2021-10-29 05:04:28,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:04:28" (1/1) ... [2021-10-29 05:04:28,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:04:28,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:04:28,685 WARN L228 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_f88a1155-07d9-461f-843f-9f5637412c78/sv-benchmarks/c/float-newlib/double_req_bl_0910a.c[3598,3611] [2021-10-29 05:04:28,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:04:28,696 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:04:28,733 WARN L228 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_f88a1155-07d9-461f-843f-9f5637412c78/sv-benchmarks/c/float-newlib/double_req_bl_0910a.c[3598,3611] [2021-10-29 05:04:28,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:04:28,748 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:04:28,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:28 WrapperNode [2021-10-29 05:04:28,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:04:28,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:04:28,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:04:28,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:04:28,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:28" (1/1) ... [2021-10-29 05:04:28,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:28" (1/1) ... [2021-10-29 05:04:28,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:04:28,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:04:28,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:04:28,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:04:28,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:28" (1/1) ... [2021-10-29 05:04:28,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:28" (1/1) ... [2021-10-29 05:04:28,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:28" (1/1) ... [2021-10-29 05:04:28,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:28" (1/1) ... [2021-10-29 05:04:28,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:28" (1/1) ... [2021-10-29 05:04:28,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:28" (1/1) ... [2021-10-29 05:04:28,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:28" (1/1) ... [2021-10-29 05:04:28,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:04:28,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:04:28,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:04:28,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:04:28,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:28" (1/1) ... [2021-10-29 05:04:28,856 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:04:28,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:04:28,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:04:28,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:04:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:04:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:04:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-29 05:04:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 05:04:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-29 05:04:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:04:28,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:04:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 05:04:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:04:29,364 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:04:29,365 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-29 05:04:29,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:04:29 BoogieIcfgContainer [2021-10-29 05:04:29,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:04:29,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:04:29,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:04:29,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:04:29,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:04:28" (1/3) ... [2021-10-29 05:04:29,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43aa2982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:04:29, skipping insertion in model container [2021-10-29 05:04:29,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:28" (2/3) ... [2021-10-29 05:04:29,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43aa2982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:04:29, skipping insertion in model container [2021-10-29 05:04:29,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:04:29" (3/3) ... [2021-10-29 05:04:29,375 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a.c [2021-10-29 05:04:29,380 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:04:29,380 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:04:29,431 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:04:29,437 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:04:29,438 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:04:29,451 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:29,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:04:29,456 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:29,457 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:04:29,457 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:04:29,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:29,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1544195697, now seen corresponding path program 1 times [2021-10-29 05:04:29,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:04:29,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464668045] [2021-10-29 05:04:29,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:29,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:04:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:29,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:29,623 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:04:29,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464668045] [2021-10-29 05:04:29,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464668045] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:04:29,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:04:29,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:04:29,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213585621] [2021-10-29 05:04:29,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:04:29,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:04:29,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:04:29,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:04:29,650 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:29,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:29,667 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2021-10-29 05:04:29,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:04:29,669 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 05:04:29,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:29,678 INFO L225 Difference]: With dead ends: 43 [2021-10-29 05:04:29,678 INFO L226 Difference]: Without dead ends: 20 [2021-10-29 05:04:29,681 INFO L786 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 [2021-10-29 05:04:29,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-29 05:04:29,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-29 05:04:29,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:29,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-10-29 05:04:29,711 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 10 [2021-10-29 05:04:29,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:29,712 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-10-29 05:04:29,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:29,712 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-10-29 05:04:29,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 05:04:29,713 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:29,713 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:04:29,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:04:29,714 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:04:29,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:29,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1170194359, now seen corresponding path program 1 times [2021-10-29 05:04:29,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:04:29,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776760953] [2021-10-29 05:04:29,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:29,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:04:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:04:29,833 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:04:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:04:29,927 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:04:29,927 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:04:29,929 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:29,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:04:29,934 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 05:04:29,937 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:04:29,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:04:29 BoogieIcfgContainer [2021-10-29 05:04:29,983 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:04:29,984 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:04:29,984 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:04:29,984 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:04:29,985 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:04:29" (3/4) ... [2021-10-29 05:04:29,988 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:04:29,988 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:04:29,991 INFO L168 Benchmark]: Toolchain (without parser) took 1543.10 ms. Allocated memory is still 107.0 MB. Free memory was 72.0 MB in the beginning and 71.0 MB in the end (delta: 937.2 kB). Peak memory consumption was 439.7 kB. Max. memory is 16.1 GB. [2021-10-29 05:04:29,991 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 77.6 MB. Free memory was 52.6 MB in the beginning and 52.5 MB in the end (delta: 29.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:04:29,992 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.41 ms. Allocated memory is still 107.0 MB. Free memory was 72.0 MB in the beginning and 80.4 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:29,993 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.85 ms. Allocated memory is still 107.0 MB. Free memory was 80.4 MB in the beginning and 78.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:30,003 INFO L168 Benchmark]: Boogie Preprocessor took 32.86 ms. Allocated memory is still 107.0 MB. Free memory was 78.3 MB in the beginning and 76.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:30,006 INFO L168 Benchmark]: RCFGBuilder took 538.70 ms. Allocated memory is still 107.0 MB. Free memory was 76.6 MB in the beginning and 57.4 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:30,008 INFO L168 Benchmark]: TraceAbstraction took 614.49 ms. Allocated memory is still 107.0 MB. Free memory was 56.8 MB in the beginning and 71.0 MB in the end (delta: -14.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:04:30,008 INFO L168 Benchmark]: Witness Printer took 4.60 ms. Allocated memory is still 107.0 MB. Free memory is still 71.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:04:30,019 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 77.6 MB. Free memory was 52.6 MB in the beginning and 52.5 MB in the end (delta: 29.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 299.41 ms. Allocated memory is still 107.0 MB. Free memory was 72.0 MB in the beginning and 80.4 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.85 ms. Allocated memory is still 107.0 MB. Free memory was 80.4 MB in the beginning and 78.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.86 ms. Allocated memory is still 107.0 MB. Free memory was 78.3 MB in the beginning and 76.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 538.70 ms. Allocated memory is still 107.0 MB. Free memory was 76.6 MB in the beginning and 57.4 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 614.49 ms. Allocated memory is still 107.0 MB. Free memory was 56.8 MB in the beginning and 71.0 MB in the end (delta: -14.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.60 ms. Allocated memory is still 107.0 MB. Free memory is still 71.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 139]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 29, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L134] double x = 0.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L135] double res = __ieee754_log(x); [L21] __int32_t hx, lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L138] COND TRUE !isinf_double(res) [L139] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2021-10-29 05:04:30,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:04:32,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:04:32,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:04:32,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:04:32,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:04:32,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:04:32,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:04:32,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:04:32,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:04:32,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:04:32,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:04:32,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:04:32,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:04:32,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:04:32,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:04:32,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:04:32,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:04:32,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:04:32,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:04:32,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:04:32,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:04:32,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:04:32,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:04:32,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:04:32,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:04:32,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:04:32,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:04:32,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:04:32,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:04:32,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:04:32,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:04:32,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:04:32,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:04:32,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:04:32,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:04:32,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:04:32,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:04:32,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:04:32,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:04:32,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:04:32,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:04:32,662 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:04:32,704 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:04:32,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:04:32,706 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:04:32,706 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:04:32,706 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:04:32,706 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:04:32,707 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:04:32,707 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:04:32,707 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:04:32,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:04:32,710 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:04:32,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:04:32,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:04:32,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:04:32,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:04:32,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:04:32,711 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:04:32,711 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:04:32,711 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:04:32,711 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:04:32,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:04:32,712 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:04:32,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:04:32,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:04:32,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:04:32,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:04:32,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:04:32,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:04:32,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:04:32,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:04:32,714 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:04:32,714 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:04:32,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:04:32,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:04:32,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:04:32,715 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_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4e9a719a3106c16c930419cff190e7ac0626fe0942a2ec34e31771419d648d5 [2021-10-29 05:04:33,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:04:33,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:04:33,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:04:33,135 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:04:33,138 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:04:33,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2021-10-29 05:04:33,215 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/data/90774c95b/c6378c7916e4494a94b41e2e47a5fc97/FLAGf73b19fca [2021-10-29 05:04:33,856 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:04:33,859 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2021-10-29 05:04:33,870 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/data/90774c95b/c6378c7916e4494a94b41e2e47a5fc97/FLAGf73b19fca [2021-10-29 05:04:34,200 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/data/90774c95b/c6378c7916e4494a94b41e2e47a5fc97 [2021-10-29 05:04:34,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:04:34,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:04:34,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:04:34,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:04:34,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:04:34,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:04:34" (1/1) ... [2021-10-29 05:04:34,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@492ed520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:34, skipping insertion in model container [2021-10-29 05:04:34,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:04:34" (1/1) ... [2021-10-29 05:04:34,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:04:34,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:04:34,483 WARN L228 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_f88a1155-07d9-461f-843f-9f5637412c78/sv-benchmarks/c/float-newlib/double_req_bl_0910a.c[3598,3611] [2021-10-29 05:04:34,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:04:34,566 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:04:34,613 WARN L228 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_f88a1155-07d9-461f-843f-9f5637412c78/sv-benchmarks/c/float-newlib/double_req_bl_0910a.c[3598,3611] [2021-10-29 05:04:34,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:04:34,636 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:04:34,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:34 WrapperNode [2021-10-29 05:04:34,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:04:34,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:04:34,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:04:34,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:04:34,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:34" (1/1) ... [2021-10-29 05:04:34,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:34" (1/1) ... [2021-10-29 05:04:34,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:04:34,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:04:34,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:04:34,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:04:34,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:34" (1/1) ... [2021-10-29 05:04:34,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:34" (1/1) ... [2021-10-29 05:04:34,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:34" (1/1) ... [2021-10-29 05:04:34,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:34" (1/1) ... [2021-10-29 05:04:34,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:34" (1/1) ... [2021-10-29 05:04:34,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:34" (1/1) ... [2021-10-29 05:04:34,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:34" (1/1) ... [2021-10-29 05:04:34,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:04:34,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:04:34,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:04:34,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:04:34,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:34" (1/1) ... [2021-10-29 05:04:34,767 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:04:34,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:04:34,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:04:34,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:04:34,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-29 05:04:34,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-29 05:04:34,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:04:34,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:04:34,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 05:04:34,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:04:34,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:04:34,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 05:04:34,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:04:57,866 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:04:57,866 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-29 05:04:57,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:04:57 BoogieIcfgContainer [2021-10-29 05:04:57,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:04:57,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:04:57,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:04:57,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:04:57,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:04:34" (1/3) ... [2021-10-29 05:04:57,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27355c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:04:57, skipping insertion in model container [2021-10-29 05:04:57,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:34" (2/3) ... [2021-10-29 05:04:57,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27355c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:04:57, skipping insertion in model container [2021-10-29 05:04:57,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:04:57" (3/3) ... [2021-10-29 05:04:57,879 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a.c [2021-10-29 05:04:57,885 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:04:57,886 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:04:57,936 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:04:57,941 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:04:57,942 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:04:57,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 30 states have (on average 1.7) internal successors, (51), 31 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:57,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 05:04:57,958 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:57,959 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:04:57,959 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:04:57,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:57,965 INFO L85 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2021-10-29 05:04:57,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:04:57,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980041519] [2021-10-29 05:04:57,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:57,977 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:04:57,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:04:57,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:04:57,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:04:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:58,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:04:58,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:04:59,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:59,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:04:59,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:59,260 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:04:59,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980041519] [2021-10-29 05:04:59,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1980041519] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:04:59,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:04:59,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:04:59,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739951219] [2021-10-29 05:04:59,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:04:59,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:04:59,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:04:59,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:04:59,277 INFO L87 Difference]: Start difference. First operand has 32 states, 30 states have (on average 1.7) internal successors, (51), 31 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:59,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:59,297 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2021-10-29 05:04:59,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:04:59,299 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 05:04:59,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:59,307 INFO L225 Difference]: With dead ends: 62 [2021-10-29 05:04:59,307 INFO L226 Difference]: Without dead ends: 29 [2021-10-29 05:04:59,310 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:04:59,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-29 05:04:59,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-29 05:04:59,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 28 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:59,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2021-10-29 05:04:59,338 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2021-10-29 05:04:59,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:59,350 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2021-10-29 05:04:59,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:59,351 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2021-10-29 05:04:59,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 05:04:59,352 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:59,353 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:04:59,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:04:59,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:04:59,567 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:04:59,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:59,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2021-10-29 05:04:59,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:04:59,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065103745] [2021-10-29 05:04:59,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:59,569 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:04:59,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:04:59,574 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:04:59,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:05:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:05:00,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 05:05:00,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:05:01,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2021-10-29 05:05:02,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:05:02,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:05:03,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 89 [2021-10-29 05:05:16,331 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64))) (or (not (= (fp.div c_currentRoundingMode (fp.neg c_~two54_log~0) c_~zero~0) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|)))) (not (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (_ bv2146435072 32) (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) (bvlshr (let ((.cse1 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_9|))) (bvor .cse1 (bvneg .cse1))) (_ bv31 32))))))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32)) (_ bv0 32))))) is different from false [2021-10-29 05:05:18,517 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64))) (or (not (= (fp.div c_currentRoundingMode (fp.neg c_~two54_log~0) c_~zero~0) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|)))) (not (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (_ bv2146435072 32) (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) (bvlshr (let ((.cse1 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_9|))) (bvor .cse1 (bvneg .cse1))) (_ bv31 32))))))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32)) (_ bv0 32))))) is different from true [2021-10-29 05:06:00,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:00,996 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:06:00,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065103745] [2021-10-29 05:06:00,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065103745] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:00,997 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:00,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-29 05:06:00,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617587220] [2021-10-29 05:06:00,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-29 05:06:00,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:06:00,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-29 05:06:01,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=128, Unknown=2, NotChecked=22, Total=182 [2021-10-29 05:06:01,000 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:03,259 WARN L860 $PredicateComparison]: unable to prove that (and (= ((_ to_fp 11 53) c_currentRoundingMode 18014398509481984.0) c_~two54_log~0) (forall ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64))) (or (not (= (fp.div c_currentRoundingMode (fp.neg c_~two54_log~0) c_~zero~0) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|)))) (not (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (_ bv2146435072 32) (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) (bvlshr (let ((.cse1 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_9|))) (bvor .cse1 (bvneg .cse1))) (_ bv31 32))))))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32)) (_ bv0 32))))) (= (_ +zero 11 53) c_~zero~0) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-29 05:06:44,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:44,432 INFO L93 Difference]: Finished difference Result 37 states and 46 transitions. [2021-10-29 05:06:44,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 05:06:44,433 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-29 05:06:44,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:44,434 INFO L225 Difference]: With dead ends: 37 [2021-10-29 05:06:44,434 INFO L226 Difference]: Without dead ends: 29 [2021-10-29 05:06:44,436 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=68, Invalid=209, Unknown=3, NotChecked=62, Total=342 [2021-10-29 05:06:44,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-29 05:06:44,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-29 05:06:44,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 28 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:44,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2021-10-29 05:06:44,441 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 14 [2021-10-29 05:06:44,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:44,442 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2021-10-29 05:06:44,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:44,442 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2021-10-29 05:06:44,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 05:06:44,443 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:44,443 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:44,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:06:44,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:06:44,659 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:06:44,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:44,660 INFO L85 PathProgramCache]: Analyzing trace with hash 2016616349, now seen corresponding path program 1 times [2021-10-29 05:06:44,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:06:44,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140968035] [2021-10-29 05:06:44,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:44,663 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:06:44,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:06:44,665 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:06:44,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:06:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:44,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:06:44,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:06:45,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:45,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:06:46,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:46,288 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:06:46,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140968035] [2021-10-29 05:06:46,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140968035] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:46,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:46,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:06:46,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706510169] [2021-10-29 05:06:46,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:06:46,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:06:46,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:06:46,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:06:46,291 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:51,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:51,307 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2021-10-29 05:06:51,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:06:51,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-29 05:06:51,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:51,773 INFO L225 Difference]: With dead ends: 56 [2021-10-29 05:06:51,773 INFO L226 Difference]: Without dead ends: 37 [2021-10-29 05:06:51,773 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:06:51,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-29 05:06:51,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2021-10-29 05:06:51,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:51,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2021-10-29 05:06:51,778 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 14 [2021-10-29 05:06:51,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:51,779 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-10-29 05:06:51,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:51,779 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2021-10-29 05:06:51,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 05:06:51,780 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:51,780 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:51,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-29 05:06:51,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:06:51,986 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:06:51,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:51,986 INFO L85 PathProgramCache]: Analyzing trace with hash 933813038, now seen corresponding path program 1 times [2021-10-29 05:06:51,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:06:51,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669912385] [2021-10-29 05:06:51,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:51,987 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:06:51,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:06:51,997 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:06:51,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 05:06:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:52,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 05:06:52,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:06:54,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:54,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:05,246 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_11| (_ BitVec 64))) (or (not (bvsge ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_11|) (_ bv2146435072 32))) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_11|)) (fp.mul c_currentRoundingMode c_ULTIMATE.start___ieee754_log_~x c_~two54_log~0))))) is different from true [2021-10-29 05:07:39,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:39,064 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:39,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669912385] [2021-10-29 05:07:39,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669912385] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:39,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:39,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-29 05:07:39,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597100744] [2021-10-29 05:07:39,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 05:07:39,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:39,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 05:07:39,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=51, Unknown=1, NotChecked=14, Total=90 [2021-10-29 05:07:39,067 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:41,133 WARN L860 $PredicateComparison]: unable to prove that (and (= ((_ to_fp 11 53) c_currentRoundingMode 18014398509481984.0) c_~two54_log~0) (= (_ +zero 11 53) c_ULTIMATE.start___ieee754_log_~x) (forall ((|v_skolemized_q#valueAsBitvector_11| (_ BitVec 64))) (or (not (bvsge ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_11|) (_ bv2146435072 32))) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_11|)) (fp.mul c_currentRoundingMode c_ULTIMATE.start___ieee754_log_~x c_~two54_log~0))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-29 05:07:50,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:50,893 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2021-10-29 05:07:50,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:07:50,983 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-29 05:07:50,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:50,984 INFO L225 Difference]: With dead ends: 37 [2021-10-29 05:07:50,984 INFO L226 Difference]: Without dead ends: 26 [2021-10-29 05:07:50,985 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=32, Invalid=64, Unknown=2, NotChecked=34, Total=132 [2021-10-29 05:07:50,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-29 05:07:50,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-10-29 05:07:50,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:50,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2021-10-29 05:07:50,989 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 18 [2021-10-29 05:07:50,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:50,989 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2021-10-29 05:07:50,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:50,990 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2021-10-29 05:07:50,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 05:07:50,990 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:50,991 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:51,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:51,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:51,191 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:07:51,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:51,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1217171362, now seen corresponding path program 1 times [2021-10-29 05:07:51,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:51,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447091138] [2021-10-29 05:07:51,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:51,193 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:51,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:51,199 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:51,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 05:07:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:51,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-29 05:07:51,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:55,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:55,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:08:39,488 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_12| (_ BitVec 64))) (or (not (= (fp.mul c_currentRoundingMode c_ULTIMATE.start___ieee754_log_~x c_~two54_log~0) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_12|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_12|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_12|)))) (not (= (let ((.cse0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_12|))) (bvadd (bvashr .cse0 (_ bv20 32)) (bvashr (bvand (_ bv1048576 32) (bvadd (_ bv614244 32) (bvand (_ bv1048575 32) .cse0))) (_ bv20 32)))) (_ bv1077 32))))) is different from true [2021-10-29 05:08:53,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:08:53,312 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:08:53,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447091138] [2021-10-29 05:08:53,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447091138] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:08:53,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:08:53,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2021-10-29 05:08:53,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108549046] [2021-10-29 05:08:53,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-29 05:08:53,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:08:53,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-29 05:08:53,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=132, Unknown=7, NotChecked=24, Total=210 [2021-10-29 05:08:53,315 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:09:25,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:09:25,159 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2021-10-29 05:09:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-29 05:09:25,197 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-29 05:09:25,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:09:25,198 INFO L225 Difference]: With dead ends: 42 [2021-10-29 05:09:25,198 INFO L226 Difference]: Without dead ends: 34 [2021-10-29 05:09:25,199 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 24.5s TimeCoverageRelationStatistics Valid=96, Invalid=243, Unknown=7, NotChecked=34, Total=380 [2021-10-29 05:09:25,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-29 05:09:25,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2021-10-29 05:09:25,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.08) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:09:25,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-10-29 05:09:25,204 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 24 [2021-10-29 05:09:25,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:09:25,204 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-10-29 05:09:25,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:09:25,205 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-10-29 05:09:25,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 05:09:25,206 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:09:25,206 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:09:25,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 05:09:25,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:09:25,410 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:09:25,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:09:25,410 INFO L85 PathProgramCache]: Analyzing trace with hash 407824736, now seen corresponding path program 1 times [2021-10-29 05:09:25,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:09:25,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071249218] [2021-10-29 05:09:25,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:09:25,411 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:09:25,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:09:25,412 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:09:25,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 05:09:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:09:26,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 05:09:26,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:09:26,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2021-10-29 05:09:27,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:09:27,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:09:28,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-10-29 05:09:28,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:09:28,608 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:09:28,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071249218] [2021-10-29 05:09:28,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071249218] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:09:28,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:09:28,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:09:28,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641922681] [2021-10-29 05:09:28,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:09:28,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:09:28,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:09:28,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:09:28,611 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:09:28,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:09:28,848 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2021-10-29 05:09:28,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:09:28,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-29 05:09:28,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:09:28,849 INFO L225 Difference]: With dead ends: 26 [2021-10-29 05:09:28,849 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:09:28,850 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:09:28,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:09:28,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:09:28,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:09:28,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:09:28,851 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2021-10-29 05:09:28,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:09:28,851 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:09:28,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:09:28,851 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:09:28,851 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:09:28,854 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:09:28,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 05:09:29,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:09:29,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 05:09:29,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:09:29,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:09:29,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:09:29,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:09:29,094 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:09:29,095 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:09:29,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:09:32,108 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 72) no Hoare annotation was computed. [2021-10-29 05:09:32,108 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2021-10-29 05:09:32,108 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2021-10-29 05:09:32,109 INFO L853 garLoopResultBuilder]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0) ~two54_log~0) (= (_ +zero 11 53) ULTIMATE.start___ieee754_log_~x) (= (_ +zero 11 53) ~zero~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-29 05:09:32,109 INFO L857 garLoopResultBuilder]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2021-10-29 05:09:32,109 INFO L860 garLoopResultBuilder]: At program point L143(lines 128 144) the Hoare annotation is: true [2021-10-29 05:09:32,109 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 05:09:32,109 INFO L857 garLoopResultBuilder]: For program point L61(lines 61 62) no Hoare annotation was computed. [2021-10-29 05:09:32,109 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 05:09:32,109 INFO L857 garLoopResultBuilder]: For program point L86(lines 86 102) no Hoare annotation was computed. [2021-10-29 05:09:32,109 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2021-10-29 05:09:32,110 INFO L853 garLoopResultBuilder]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2021-10-29 05:09:32,110 INFO L857 garLoopResultBuilder]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2021-10-29 05:09:32,110 INFO L857 garLoopResultBuilder]: For program point L87(lines 87 94) no Hoare annotation was computed. [2021-10-29 05:09:32,110 INFO L857 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2021-10-29 05:09:32,110 INFO L857 garLoopResultBuilder]: For program point L63(lines 63 64) no Hoare annotation was computed. [2021-10-29 05:09:32,110 INFO L857 garLoopResultBuilder]: For program point L121(lines 121 124) no Hoare annotation was computed. [2021-10-29 05:09:32,110 INFO L857 garLoopResultBuilder]: For program point L88(lines 88 93) no Hoare annotation was computed. [2021-10-29 05:09:32,110 INFO L857 garLoopResultBuilder]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2021-10-29 05:09:32,111 INFO L853 garLoopResultBuilder]: At program point L22-2(lines 22 27) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 18014398509481984.0)) (_ +zero 11 53)))) (and (= .cse0 |ULTIMATE.start___ieee754_log_#res|) (= .cse0 ULTIMATE.start_isinf_double_~x))) [2021-10-29 05:09:32,111 INFO L857 garLoopResultBuilder]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2021-10-29 05:09:32,111 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 125) no Hoare annotation was computed. [2021-10-29 05:09:32,111 INFO L857 garLoopResultBuilder]: For program point L138(lines 138 141) no Hoare annotation was computed. [2021-10-29 05:09:32,111 INFO L853 garLoopResultBuilder]: At program point L31(lines 20 32) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 18014398509481984.0)) (_ +zero 11 53)))) (and (= .cse0 |ULTIMATE.start___ieee754_log_#res|) (= .cse0 ULTIMATE.start_isinf_double_~x) (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64))) (and (= (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 18014398509481984.0)) (_ +zero 11 53)) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|))) (= (bvadd (bvneg (bvlshr (let ((.cse1 (bvadd (_ bv2146435072 32) (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) (bvlshr (let ((.cse2 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_9|))) (bvor .cse2 (bvneg .cse2))) (_ bv31 32))))))) (bvor .cse1 (bvneg .cse1))) (_ bv31 32))) (_ bv1 32)) |ULTIMATE.start_isinf_double_#res|))))) [2021-10-29 05:09:32,112 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-10-29 05:09:32,112 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 05:09:32,112 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2021-10-29 05:09:32,112 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 119) no Hoare annotation was computed. [2021-10-29 05:09:32,112 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 05:09:32,113 INFO L853 garLoopResultBuilder]: At program point L124(lines 47 126) the Hoare annotation is: (= (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 18014398509481984.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|) [2021-10-29 05:09:32,113 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2021-10-29 05:09:32,114 INFO L853 garLoopResultBuilder]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2021-10-29 05:09:32,118 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-10-29 05:09:32,119 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:09:32,126 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,129 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,131 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,131 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,131 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,131 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,133 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,133 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,133 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,133 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,133 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,133 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,135 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,136 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,137 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,137 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,137 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,137 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,137 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,138 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,138 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,138 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,138 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,140 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,140 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,140 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,140 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,141 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,141 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,141 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,141 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:09:32 BoogieIcfgContainer [2021-10-29 05:09:32,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:09:32,155 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:09:32,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:09:32,156 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:09:32,157 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:04:57" (3/4) ... [2021-10-29 05:09:32,160 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:09:32,175 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-29 05:09:32,175 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-29 05:09:32,176 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:09:32,176 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:09:32,200 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result [2021-10-29 05:09:32,201 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result && ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == x [2021-10-29 05:09:32,202 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result && ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_9 : bv64 :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]) && ~bvadd64(~bvneg32(~bvlshr32(~bvor32(~bvadd64(2146435072bv32, ~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_9[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_9[31:0])), 31bv32)))), ~bvneg32(~bvadd64(2146435072bv32, ~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_9[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_9[31:0])), 31bv32)))))), 31bv32)), 1bv32) == \result) [2021-10-29 05:09:32,260 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:09:32,260 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:09:32,262 INFO L168 Benchmark]: Toolchain (without parser) took 298050.52 ms. Allocated memory is still 71.3 MB. Free memory was 48.9 MB in the beginning and 31.9 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:09:32,262 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 50.3 MB. Free memory is still 29.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:09:32,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.51 ms. Allocated memory is still 71.3 MB. Free memory was 48.7 MB in the beginning and 52.1 MB in the end (delta: -3.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:09:32,263 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.70 ms. Allocated memory is still 71.3 MB. Free memory was 51.9 MB in the beginning and 50.0 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:09:32,264 INFO L168 Benchmark]: Boogie Preprocessor took 57.70 ms. Allocated memory is still 71.3 MB. Free memory was 50.0 MB in the beginning and 48.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:09:32,264 INFO L168 Benchmark]: RCFGBuilder took 23109.78 ms. Allocated memory is still 71.3 MB. Free memory was 47.9 MB in the beginning and 51.2 MB in the end (delta: -3.3 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:09:32,265 INFO L168 Benchmark]: TraceAbstraction took 274284.17 ms. Allocated memory is still 71.3 MB. Free memory was 50.9 MB in the beginning and 37.2 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:09:32,265 INFO L168 Benchmark]: Witness Printer took 104.99 ms. Allocated memory is still 71.3 MB. Free memory was 37.2 MB in the beginning and 31.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:09:32,267 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 50.3 MB. Free memory is still 29.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 423.51 ms. Allocated memory is still 71.3 MB. Free memory was 48.7 MB in the beginning and 52.1 MB in the end (delta: -3.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.70 ms. Allocated memory is still 71.3 MB. Free memory was 51.9 MB in the beginning and 50.0 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.70 ms. Allocated memory is still 71.3 MB. Free memory was 50.0 MB in the beginning and 48.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 23109.78 ms. Allocated memory is still 71.3 MB. Free memory was 47.9 MB in the beginning and 51.2 MB in the end (delta: -3.3 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 274284.17 ms. Allocated memory is still 71.3 MB. Free memory was 50.9 MB in the beginning and 37.2 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 104.99 ms. Allocated memory is still 71.3 MB. Free memory was 37.2 MB in the beginning and 31.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 139]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 274.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 93.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 163 SDtfs, 121 SDslu, 442 SDs, 0 SdLazy, 139 SolverSat, 33 SolverUnsat, 33 SolverUnknown, 0 SolverNotchecked, 81.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 216 GetRequests, 160 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 41.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 38, 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, 6 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 123 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 78 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 172.7s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 200 ConstructedInterpolants, 46 QuantifiedInterpolants, 2059 SizeOfPredicates, 40 NumberOfNonLiveVariables, 466 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant [2021-10-29 05:09:32,281 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,282 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant [2021-10-29 05:09:32,282 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,282 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,282 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,283 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant [2021-10-29 05:09:32,283 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,283 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,283 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,283 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,283 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,283 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,283 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,285 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,285 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,285 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,285 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,285 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,285 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,286 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,286 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,286 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,286 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,286 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,286 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,287 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,287 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-29 05:09:32,287 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] Derived loop invariant: (~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result && ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_9 : bv64 :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]) && ~bvadd64(~bvneg32(~bvlshr32(~bvor32(~bvadd64(2146435072bv32, ~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_9[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_9[31:0])), 31bv32)))), ~bvneg32(~bvadd64(2146435072bv32, ~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_9[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_9[31:0])), 31bv32)))))), 31bv32)), 1bv32) == \result) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2021-10-29 05:09:32,288 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,289 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,289 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,289 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,290 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,290 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,290 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:09:32,290 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result && ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == x RESULT: Ultimate proved your program to be correct! [2021-10-29 05:09:32,513 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-29 05:09:32,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88a1155-07d9-461f-843f-9f5637412c78/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...